Dell EMC Server Administrator Storage Management 9.3.
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2019 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents 1 Overview.....................................................................................................................................11 What Is New In This Release............................................................................................................................................... 11 Before Installing Storage Management..............................................................................................................................
Monitoring Disk Reliability On RAID Controllers.............................................................................................................. 28 Using Alarms To Detect Failures....................................................................................................................................... 28 Time Delay In Displaying Configuration Changes............................................................................................................
Creating A Virtual Disk.................................................................................................................................................. 49 Enabling The Controller Alarm..................................................................................................................................... 49 Disabling The Controller Alarm.....................................................................................................................................
10 Enclosures And Backplanes........................................................................................................ 79 Backplanes............................................................................................................................................................................79 Enclosures............................................................................................................................................................................
Physical Disk Or Physical Device Properties....................................................................................................................98 Physical Disk Or Physical Device Tasks.......................................................................................................................... 102 Physical Disk Tasks............................................................................................................................................................
Encrypting A Virtual Disk..............................................................................................................................................118 Create Virtual Disk Express Wizard..................................................................................................................................118 Create Virtual Disk Express Wizard Step 2.....................................................................................................................
Dedicated Hot Spare Protection Policy.....................................................................................................................132 Global Hot Spare Protection Policy........................................................................................................................... 133 Considerations For Hot Spare Protection Policy..................................................................................................... 133 Considerations For Enclosure Affinity...
Which RAID Level Is Best For Me....................................................................................................................................143 20 Supported Features.................................................................................................................144 Supported Features On PERC Hardware Controllers...................................................................................................144 Controller Tasks Supported On PERC Hardware Controllers..
1 Overview Server Administrator Storage Management provides enhanced features for configuring the locally attached RAID and non-RAID disk storage on a system. Storage Management enables you to perform controller and enclosure functions for all supported RAID and nonRAID controllers and enclosures from a single graphical user interface (GUI) or command-line interface (CLI). The GUI is wizard-driven and includes features for novice and advanced users. The CLI is fully featured and scriptable.
NOTE: To download the latest storport driver, see the Microsoft Knowledge Base article KB943545 at support.microsoft.com. If you install Storage Management without the minimum required firmware and drivers, Storage Management may not be able to display the controllers or perform other functions. Storage Management generates alerts 2131 and 2132 when it detects unsupported firmware or drivers on a controller. For information on alert messages, see the Server Administrator Messages Reference Guide.
NOTE: At times, the connector ID for SAS 12 Gbps HBA may not be displayed correctly on Storage Management. This occurs because of a firmware limitation in the SAS 12 Gbps HBA. However, this connector ID discrepancy does not cause any functional limitation. NOTE: The controllers are only supported on RHEL 8.0 operating system. Support For Disk And Volume Management Storage Management does not provide disk and volume management.
2 Getting Started Server Administrator Storage Management is designed for system administrators who implement hardware RAID solutions and understand corporate and small business storage environments. Storage Management enables you to configure the storage components attached to your system. These components include RAID and non-RAID controllers and the channels, ports, enclosures, and disks attached to them.
where is the IP address for the managed system and 1311 is the default port. NOTE: Type https:// (not http://) in the address field to receive a valid response in your browser. User Privileges Server Administrator provides security through the User, Power User, and Administrator user groups. Each user group is assigned a different level of access to the Server Administrator features. The Administrator privileges are required to access all Storage Management features.
Common Storage Tasks This section provides information on commonly performed storage tasks: • Create and configure virtual disks (RAID configuration). For more information, see: • • • • Assign a hot spare to the virtual disk — When a virtual disk uses a RAID level, you can assign a hot spare (backup physical disk) to rebuild data if a physical disk in the virtual disk fails.
3 Understanding RAID concepts Storage Management uses the Redundant Array of Independent Disks (RAID) technology to provide Storage Management capability. Understanding Storage Management requires an understanding of RAID concepts, as well as some familiarity with how the RAID controllers and operating system view disk space on your system.
• • • • • Stripe size — The total disk space consumed by a stripe not including a parity disk. For example, consider a stripe that contains 64KB of disk space and has 16KB of data residing on each disk in the stripe. In this case, the stripe size is 64KB and the stripe element size is 16KB. Stripe element — A stripe element is the portion of a stripe that resides on a single physical disk. Stripe element size — The amount of disk space consumed by a stripe element.
• • • RAID Level 10 (Striping Over Mirror Sets) Comparing RAID Level And Concatenation Performance No-RAID Concatenation In Storage Management, concatenation refers to storing data on either one physical disk or on disk space that spans multiple physical disks. When spanning more than one disk, concatenation enables the operating system to view multiple physical disks as a single disk. Data stored on a single disk can be considered a simple volume.
RAID 0 characteristics: • • • • Groups n disks as one large virtual disk with a capacity of (smallest disk size) *n disks. Data is stored to the disks alternately. No redundant data is stored. When a disk fails, the large virtual disk fails with no means of rebuilding the data. Better read and write performance. RAID level 1 - mirroring RAID 1 is the simplest form of maintaining redundant data. In RAID 1, data is mirrored or duplicated on one or more physical disks.
• RAID 1 is more expensive in terms of disk space since twice the number of disks are used than required to store the data without redundancy. RAID level 5 -striping with distributed parity RAID 5 provides data redundancy by using data striping in combination with parity information. Rather than dedicating a physical disk to parity, the parity information is striped across all physical disks in the disk group.
RAID 6 characteristics: • • • • • • Groups n disks as one large virtual disk with a capacity of (n-2) disks. Redundant information (parity) is alternately stored on all disks. The virtual disk remains functional with up to two disk failures. The data is reconstructed from the surviving disks. Better read performance, but slower write performance. Increased redundancy for protection of data. Two disks per span are required for parity. RAID 6 is more expensive in terms of disk space.
RAID 50 characteristics: • • • • • Groups n*s disks as one large virtual disk with a capacity of s*(n-1) disks, where s is the number of spans and n is the number of disks within each span. Redundant information (parity) is alternately stored on all disks of each RAID 5 span. Better read performance, but slower write performance. Requires as much parity information as standard RAID 5. Data is striped across all spans. RAID 50 is more expensive in terms of disk space.
RAID 60 characteristics: • • • • • • Groups n*s disks as one large virtual disk with a capacity of s*(n-2) disks, where s is the number of spans and n is the number of disks within each span. Redundant information (parity) is alternately stored on all disks of each RAID 6 span. Better read performance, but slower write performance. Increased redundancy provides greater data protection than a RAID 50. Requires proportionally as much parity information as RAID 6. Two disks per span are required for parity.
RAID 10 characteristics: • • • • • Groups n disks as one large virtual disk with a capacity of (n/2) disks, where n is an even integer. Mirror images of the data are striped across sets of physical disks. This level provides redundancy through mirroring. When a disk fails, the virtual disk still works. The data is read from the surviving mirrored disk. Improved read performance and write performance. Redundancy for protection of data.
RAID Level Data Availability Read Performance Write Performance Rebuild Performance Minimum Disks Required Suggested Uses RAID 5 Good Sequential reads: good. Transactional reads: Very good Fair, unless using writeback cache Fair N + 1 (N = at least Databases and two disks) other read intensive transactional uses. RAID 10 Excellent Very Good Fair Good 2N x X Data intensive environments (large records).
4 Quick Access To Storage Status And Tasks This section describes various methods to determine the status or health of the storage components on your system and how to quickly launch the available controller tasks.
Severity Component Status Warning/Non-critical — A probe or other monitoring device has detected a reading for the component that is above or below the acceptable level. The component may still be functioning, but it could fail. The component may also be functioning in an impaired state. Data loss is possible. Critical/Failure/Error/Fatal — The component has either failed or failure is imminent. The component requires immediate attention and may need to be replaced. Data loss may have occurred.
Time Delay In Displaying Configuration Changes When you change the storage configuration, Storage Management quickly generates SNMP traps in response to the configuration changes. The Storage Management, Management Information Base (MIB) is also updated to reflect storage configuration changes. However, it may take up to five minutes to update the MIB with the most recent storage configuration.
5 PCI Express Solid-State Device Support This section provides an overview of the Storage Management device management support for Peripheral Component Interconnect Express (PCIe) Solid-State Drive (SSD) and its associated devices like the backplane and extender card. In Storage Management, PCIe SSD appears under Storage in the tree view. Storage Management reports the PCIe SSD devices and its various properties.
Properties Description controllers and PCIe SSD subsystems attached to the system starting with zero. This number is the same as the PCIe SSD subsystem ID number reported by the omreportcommand. For information on Command Line Interface, see the Server Administrator Command Line Interface User's Guide. NOTE: In CLI commands, the PCIe SSD subsystem ID is displayed as the controller ID. Status These icons represent the severity or health of the PCIe SSD Subsystem.
Properties Description Device Life Status Displays the life status of the PCIe SSD. The device life status is determined by the following attributes: Percent Lifetime Used — This attribute is determined by the elapsed time since the start of use (up to three years) or percentage of total bytes written (TBW). Write Protect Progress — This attribute is determined by the reduction in number of available spare sectors.
Properties Description NOTE: This option is applicable to Micron PCIe SSDs, Non-Volatile Memory Express (NVMe) PCIe SSDs, and SAS/SATA SSDs. Firmware Revision Displays the firmware version of the physical device. NOTE: The updated firmware version reflects on the Storage Management page after a service restart for the NVMe drives which supports firmware update without reset. Model Number Displays the Piece Part Identification (PPID) of the PCIe SSD. Capacity Displays the capacity of the device.
Blinking And Unblinking A PCIe SSD The Blink task allows you to find a device within a system by blinking one of the LEDs on the device. You can use this task to locate a failed device. Select Unblink to cancel the Blink task or to stop the LED on a physical device that is blinking indefinitely. Preparing To Remove A PCIe SSD PCIe SSDs support orderly hot swap allowing you to add or remove a device without halting or rebooting the system in which the devices are installed.
To Locate Cryptographic Erase In Storage Management NOTE: Cryptographic Erase is not supported for NVMe devices connected to SWRAID controller. 1. In the Server Administrator window, under the system tree, expand Storage to display the controller objects. 2. Expand a controller object. 3. Expand the enclosure or backplane object. 4. Select the Physical Devices object. 5. Select Cryptographic Erase from the Tasks drop-down menu of the physical device you want to clear. 6. Click Execute.
6 Storage Information And Global Tasks Use the Storage information and Global Tasks window to view high-level information about the storage components or devices on your system. These windows also allow you to launch global tasks that affect all controllers attached to the system. Topics: • • • Storage Properties Global Tasks Storage Controller Properties Storage Properties The Storage tree-view object has the following properties. Table 5.
4. Click Execute. The Set Threshold for Remaining Rated Write Endurance window is displayed with the following options: • • Set Threshold for PCIe SSD (1–100) — Displays the default threshold value for all PCIe SSDs Set Threshold for SAS/SATA SSD (1–100) — Displays the default threshold value for all SAS/SATA SSDs 5. Type the threshold values for one or both the available options and click Apply Changes.
NOTE: The newly entered threshold values are retained even after you upgrade Server Administrator. NOTE: When the Available Spare of the SSD drops below the configured threshold, an alert is logged and based on the ‘alert type selection’ the SNMP trap is received for the same. For more information on SNMP traps, see the Dell EMC OpenManage SNMP Reference Guide at dell.com/openmanagemanuals. The threshold polling interval is scheduled to repeat every five minutes.
Property Definition Alarm State Displays whether the alarm on the controller is enabled or disabled. Cluster Mode Indicates whether the controller is part of a cluster configuration. Storage Components For information on attached controllers, see Controllers.
7 Controllers This chapter provides information about the supported controllers and controller features in Storage Management.
• • • • PERC FD33xD/FD33xS PERC H730P MX PERC H745P MX Controllers supported on R6515, R7515 are: • PERC H330 Mini, PERC H730, PERC H740P, HBA330 & PERC H740P Mini NOTE: PERC H840 Adapter is supported only on RHEL 8.0 operating system. RAID Controller Features Different controllers have different features. If you have more than one controller attached to your system, you may notice that the tasks displayed on the Information/Configuration page of the controller are different for each controller.
• • • • Read Ahead — The controller reads sequential sectors of the virtual disk when seeking data. Read ahead policy may improve system performance if the data is written to the sequential sectors of the virtual disk. No Read Ahead — Selecting no read ahead policy indicates that the controller should not use read ahead policy. Read Cache Enabled — The controller reads the cache information to verify if the requested data is available in the cache before retrieving the data from the disk.
Disk Cache Policy Does my controller support this feature? See Supported Features. NOTE: The Disk Cache Policy feature is not supported on solid-state disks (SSDs) and on SAS 12 Gbps Adapter. The Disk Cache Policy feature is supported on Non-RAID SAS/SATA physical disks (HDDs) connected to PERC hardware controllers and on RAID SAS/SATA physical disks connected to Software RAID controller.
NOTE: Supported features may vary from controller to controller. Non-RAID SAS Controllers The following non-RAID controllers use Serial Attached SCSI (SAS) technology: • • • • • HBA 330 MX HBA 330 MMZ SAS 12 Gbps HBA HBA 330 Mini HBA 330 Adapter NOTE: Storage Management only enumerates and provides the PCI slot information for Broadcom SAS 9207-8e and SAS 9300-8e controllers.
Property Definition Minimum Required Firmware Version Displays the minimum firmware version that is required by Storage Management. This property is displayed only if the controller firmware does not meet the minimum requirement. Driver Version Displays the version of the driver that is installed on the controller. NOTE: Storage Management displays Not Applicable on some controllers for which the driver version cannot be obtained.
Property Name Definition • — Normal/OK • — Warning/Non-critical • — Critical/Failure/Error Displays the name of the controller. NOTE: For PowerEdge FD332 storage sled, the name is displayed as: • Single controller — PERC FD33xS (Integrated RAID Controller in Front Chassis Slot , where X displays the controller number and Y displays the front chassis slot number.
Property Definition Rebuild Rate Rebuild rate is the percentage of resources available on a system dedicated to rebuild a failed disk when necessary. For more information on rebuild rate, see Setting The Rebuild Rate. NOTE: The value for the Revertible Hot Spare operation is the same as the value set for the Rebuild Rate property.
Property Definition • • controller. You do not have the option of manually starting or stopping the Patrol Read in this mode. Manual — Allows you to manually start or stop the patrol read process. Disabled — Indicates that the patrol read process is disabled. For more information about patrol read, see Setting The Patrol Read Mode and Starting And Stopping Patrol Read. Patrol Read State Displays the current state of the patrol read process.
Controller Tasks To execute a controller task: 1. 2. 3. 4. 5. In the Server Administrator window, under the system tree, expand Storage to display the controller objects. Select a controller object. Click Information/Configuration on the controller Properties page. Select a task from the Available Tasks drop-down menu. Click Execute. NOTE: Different controllers support different features. The tasks displayed on the Available Tasks drop-down menu vary depending on the controller selected.
Select the Disable Alarm task to disable the alarm on the controller. When disabled, the alarm does not sound in the event of a device failure. Turning Off The Controller Alarm Does my controller support this feature? See Supported Features. Select the Quiet Alarm task to turn off the controller alarm. However, the controller alarm remains enabled for future device failure. Testing The Controller Alarm Does my controller support this feature? See Supported Features.
CAUTION: Resetting a configuration permanently destroys all data on all virtual disks attached to the controller. If the system or boot partition resides on these virtual disks, it is destroyed. NOTE: Resetting the controller configuration does not remove a foreign configuration. To remove a foreign configuration, select Clear Foreign Configuration task. NOTE: This task is not supported on PERC hardware controllers running in HBA mode.
Foreign Configuration Operations Does my controller support this feature? See Supported Features. The Foreign Configuration Operations task provides a preview of the foreign configurations that you can import. NOTE: This task is not supported on PERC hardware controllers running in HBA mode. NOTE: Foreign Configuration Operations task is available only on PERC 6 and SAS controllers with firmware versions 6.1 and later.
Property Definition • • • • • • Missing span — One or more spans of a hybrid virtual disk is missing. Stale physical disks — One or more physical disks in the configuration may contain out-of-date data relating to other disks of that virtual disk. Hence, the data integrity of the imported virtual disk is not intact. Unsupported configuration of the virtual disk — The virtual disk has an unsupported RAID level.
disk was set as a dedicated hot spare on the previous controller, but the virtual disk to which the hot spare was assigned is no longer present in the foreign configuration, then the physical disk is imported as a global hot spare. The Import Foreign Configuration task is only displayed when the controller has detected a foreign configuration. You can also identify whether a physical disk contains a foreign configuration (virtual disk or hot spare) by checking the physical disk state.
To Locate Clear Foreign Configuration In Storage Management For SAS controllers with firmware versions 6.1 and later: 1. In the Server Administrator window, under the system tree, expand Storage to display the controller objects. 2. Select a controller object. 3. Click Information/Configuration on the controller Properties page. 4. Select Foreign Configuration Operations from the Controller Tasks drop-down menu. 5. Click Execute. 6. In the Foreign Configuration Preview page, click Clear.
Property Definition • • • • • 2107 2108 2109 2110 2111 For information on alert messages, see the Server Administrator Messages Reference Guide. Progress Displays the progress of an operation being performed on the physical disk. Bus Protocol Displays the technology that the physical disk is using.
Property Definition • • Replaced Rebuild Encryption Capable Displays whether the physical disk is a Self Encryption Disk (SED). The possible values are Yes and No. Encrypted Displays whether the physical disk is encrypted to the controller. The possible values are Yes and No. For a non-SED the value is N/A. Part Number Displays the unique Bill Of Materials assignment number for a physical disk. The numbers four through eight represent the service provider part number for that model drive.
To exit and cancel your changes, click Return to Previous Page. To Locate Set Check Consistency Rate In Storage Management 1. In the Server Administrator window, under the system tree, expand Storage to display the controller objects. 2. Select a controller object. 3. Click Information/Configuration on the controller Properties page. 4. Select Set Check Consistency Rate from the Available Tasks drop-down menu. 5. Click Execute.
• Check consistency In addition, the Patrol Read suspends during heavy I/O activity and resumes when the I/O is finished. To Set The Patrol Read Mode Select the desired Patrol Read Mode option. The options available are: • • • Auto — Initiates the Patrol Read task. After the task is complete, it automatically runs again within a specified period. For example, on some controllers the Patrol Read runs every four hours and on other controllers, the Patrol Read runs every seven days.
Changing The Controller Properties NOTE: This task is not supported on PERC hardware controllers running in HBA mode. Does my controller support this feature? See Supported Features. The Change Controller Properties task provides you the option to change multiple controller properties simultaneously. This task is available only on SAS controllers with firmware version 6.1 and later.
To enable the Quality of Service (QoS) feature: 1. Select Customized Power Savings Mode. 2. Select Enable for the Spin Down Configured Drives option Properties In Manage Physical Disk Power Option The following table displays the properties in the Manage Physical Disk Power option: Table 12. Manage Physical Disk Power Properties Property Definition Spin Down Unconfigured Drives The Enabled option spins down the unconfigured disks if they are unattended for a specified interval of time.
Managing The Time Interval For The QoS Option To manage the time interval for the QoS option at the virtual disk level: 1. In the Quality Of Service (QoS) page, select Enable Quality of Service Settings. 2. Set the Start Time. The start time can range from 1 to 24 hours. 3. Click Apply Changes. NOTE: The Enable Quality of Service Settings option is enabled only if the Spin Down Configured Drives option is enabled. To Locate Manage Physical Disk Power In Storage Management 1.
NOTE: For more information on Encryption Key and Passphrase guidelines, click the Key page. icon on the Manage Encryption Creating An Encryption Key And Enabling LKM To create an encryption key on the selected controller: 1. Select the Enable Local Key Management (LKM) option. 2. Type Encryption Key Identifier. An Encryption Key Identifier can contain numerals, alphabets both lower and upper case are allowed, non-alphanumeric characters, or a combination of any of these.
NOTE: On controller when encryption is disabled, manually enable encryption for virtual disks created using SED drives. Even if the virtual disk is created after a controller has had encryption enabled, to create an encrypted virtual disk the encryption option must still be selected from the Advanced Wizard during virtual disk creation. On an encryption-capable controller, the Manage Encryption Key task allows you to enable encryption in LKM mode.
5. Select the drives that you want to convert. 6. Click Apply. An acknowledgment that the disks have been converted is displayed. NOTE: This operation is not supported on the PERC 10 controllers. Changing The Controller Mode You can change the controller mode to Redundant Array of Independent Disks (RAID) or Host Bus Adapter (HBA) mode.
Auto Configure RAID0 Operation Does my controller support this feature? See Supported Features. You can use this feature to automatically configure all physical disks in Ready state into RAID 0 virtual disks. This feature is supported on PERC 9 and later family of hardware controllers with the latest firmware version. NOTE: The Auto Configure RAID0 operation is only supported on SAS and SATA HDDs.
Table 13.
Cont rolle r Task s Nam e PERC H730 Adapter/ Mini Monolithi c H330 HBA 330 Adapter/ Adapter/ Mini Mini Monolithi c 12 GBPS PERC SAS HBA H840 Adapter PERC PERC H730P H745P MX MX HBA 330 MX HBA 330 MM Z HBA PER 345 C H745 P Fron t/ Adap ter PER PERC C S150 H345 Front / Adap ter Start Yes Patr ol Read Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes View Yes Slot Occu panc y Repo rt Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes NOTE: If the Start Patrol Read task is supporte
Con troll er Rep orts Na me PERC H730P Adapter/ Mini Monolith ic PERC H740P Adapte r/Mini Monolit hic PERC H730 Adapter/ Mini Monolithi c PERC HBA 330 PERC H330 Adapter H840 Adapte /Mini Adapter r/Mini Monolit hic 12 GBPS SAS HBA PERC H730 P MX PER C H74 5P MX HBA HBA 330 345 MX PERC 745 P Front and Adapte r PER C H345 Front and Adap ter Yes Yes Yes Yes Yes Yes Yes Yes Yes Rep ort Vie Yes w Phy sica l Dis k Fir mw are Ver sion Rep ort Yes Yes Yes Physical Disk Tasks Supported When Sy
Table 17.
Viewing Check Consistency Report Does my controller support this feature? See Supported Features. The check consistency report provides information on all the consistency checks performed on the controller in a chronological order. It provides information such as last run time and result. If the consistency check fails, it provides the reason for the failure. To Locate View Check Consistency Report In Storage Management 1. In the Server Administrator window, under the system tree, click Storage. 2.
Health of Logical Connector Path between Controller and Enclosure 1 Connector 0 (C0) Connector 1 (C1) Available Disconnected Disconnected Available However, if the communication channel between any two enclosures is lost, the redundant path configuration is degraded and the health of the logical connector is displayed as degraded. For a brief outline of this scenario, see the following table. Table 19.
On systems running Windows: C:\\Dell\SysMgt\sm where C:\Program files may vary based on the system. On systems running Linux: /opt/dell/srvadmin/etc/srvadmin-storage/hddfwver.csv On systems running ESXi: /etc/cim/dell/srvadmin/srvadmin-storage/hddfwver.csv If the existing firmware(s) for all physical disks is the latest, the following message is displayed: There are no physical disks available that require firmware update.
Property Definition can run the DUP online without a reboot. It is recommended to stop or at least slow I/O operations during a DUP online firmware upgrade. Part Number 74 Controllers In the event of a drive failure, you can run the View Physical Disk Firmware Version Report to find out the part number of the failed drive and to check if any of the drives require an update.
8 Support For PERC 9 and PERC 10 Hardware Controllers The PowerEdge RAID Controller (PERC) family of enterprise-class controllers is designed for enhanced performance, increased reliability and fault tolerance, and simplified management — providing a powerful, easy-to-manage way to create a robust infrastructure and help maximize server uptime. The introduction of the PERC 9 and PERC 10 family of hardware controllers also brings about improvements in storage solutions.
• • • • • • • • The span layout for RAID Level 10 virtual disk created from the Express Wizard on PERC 9 and later of hardware controllers uses the span layout as recommended by the firmware of the PERC 9 and later of hardware controller. NOTE: Storage Management uses the PERC 9 and later of hardware controller-firmware suggested span layout for RAID Level 10 virtual disk creation. The PERC 9 and later of hardware controller firmware suggested span layout is same for the same set of physical disks.
• You can assign 4KB sector hard-disk drives as Global Hot Spare, if there are 4KB sector hard-disk drives and 512B sector hard-disk drives in the virtual disks created and vice versa. NOTE: If you perform this action a warning message is displayed. Related Tasks • Create Virtual Disk Advanced Wizard Reconfiguration Considerations — 4KB Sector Hard-Disk Drives You cannot reconfigure 4KB sector hard-disk drives with virtual disks that consist of 512B sector hard-disk drives and vice versa.
9 Support for BOSS-S1 RAID Controllers All Operating Systems compatible from OM 9.0.1 and later are supported by BOSS-S1 RAID Controllers. The BOSS-S1 RAID Controllers supports the following enumeration and monitoring operations: • • • The physical disks are (M.2 devices) are directly connected to the Controller Enumeration of Physical Disks (M.2 devices) are supported Enumeration of Virtual Disks on M.2 devices are supported NOTE: Storage Management updates the M.2 device firmware everyday at 12.00 am.
10 Enclosures And Backplanes Physical disks can be contained in an enclosure or attached to the backplane of a system. An enclosure is attached to the system externally while the backplane and its physical disks are internal. Topics: • • • • • Backplanes Enclosures Enclosure Management Identifying An Open Connector On The Enclosure Enclosure Components Backplanes You can view the Backplane object by expanding the controller in the Storage Management tree view.
NOTE: Storage Management does not allow hot removal of enclosures. Reboot the system to effect this change in Storage Management. NOTE: Minimum of six seconds gap is required for any hot-plugable device in or out operations . Storage Management notifies you of enclosure status changes through alerts that are displayed in the Alert Log.
Property Definition — Normal/OK — Warning/Non-critical — Critical/Failure/Error For more information, see Storage Component Severity. Name Displays the name of the fan. State Displays the status of the fan. Possible values are: • • • • • Part Number Ready — The fan is functioning normally. Degraded — The fan has encountered a failure and is operating in a degraded state. Offline — The fan or power supply has been removed from the enclosure.
Property Definition • • Part Number Failed — The power supply has encountered a failure and is no longer functioning. Storage Management is unable to communicate with the enclosure using SES commands. The Failed state is displayed when the enclosure does not respond to a status query from Storage Management for any reason. For example, This state is displayed when you disconnect the cable. Missing — The power supply is not present in the enclosure. Displays the part number of the power supply.
Property Definition Name Displays the name of the temperature probe. State Displays the status of the temperature probe. • • • • • • • Ready — The temperature probe is functioning normally. Degraded — The temperature probe has encountered a failure and is operating in a degraded state. Failed — The temperature probe has encountered a failure and is no longer functioning. Storage Management is unable to communicate with the enclosure using SES commands.
3. Select the EMMs object. The firmware version for each EMM is displayed in the Firmware Version column in the right pane. For information related to the enclosure’s EMMs, see Enclosure Management Modules (EMMs). EMM Properties Table 24. EMM Properties Property Definition Status These icons represent the severity or health of the storage component. — Normal/OK — Warning/Non-critical — Critical/Failure/Error — Unknown For more information, see Storage Component Severity.
Enclosure And Backplane Information For information on enclosures and backplanes, see: • • • Enclosures And Backplanes Enclosure And Backplane Properties Enclosure And Backplane Tasks Enclosure And Backplane Components For information on attached components, see Physical Disks Or Physical Devices. Enclosure And Backplane Properties And Tasks You can view information about the enclosure or backplane and execute enclosure tasks.
Property Definition Target ID Displays the SCSI ID of the backplane (internal to the server) or the enclosure to which the controller connector is attached. The default value is six. Configuration Displays the mode in which the enclosure is operating. Possible values are: • • • • Joined — Indicates that the enclosure is operating in the joined-bus mode. Split — Indicates that the enclosure is operating in the split-bus mode. Unified — Indicates that enclosure is operating in the unified mode.
Enclosure — Available Tasks The drop-down menu enclosure tasks are: • • • • Enabling The Enclosure Alarm Disabling The Enclosure Alarm Setting Asset Data Blinking The LED On The Enclosure Enabling The Enclosure Alarm Does my enclosure support this feature? See Supported Features. Select the Enable Alarm task to enable the enclosure alarm. When enabled, the alarm turns on when any of the following events occur: • • • Enclosure temperature has exceeded the warning threshold.
Select the Blink task to blink the LED on the enclosure. You may want to use this task to locate an enclosure. The LEDs on the enclosure may display different colors and blinking patterns. For more information on what the blink colors and patterns indicate, refer to the enclosure hardware documentation. Available Reports View Slot Occupancy Report View Slot Occupancy Report NOTE: This option is not supported when the drive is not mapped on PERC hardware controllers running in HBA mode.
If you have not attached the enclosure to an open connector, you may need to identify a connector on the controller that can be used for this purpose. To identify an open connector: 1. In the Server Administrator window, under the System tree, expand Storage. 2. Expand the controller object. The available connectors are displayed. These connectors are numbered starting from zero. 3. Identify a connector that is not attached to storage.
11 Connectors A controller contains one or more connectors (channels or ports) to which you can attach disks. You can externally access a connector by attaching an enclosure (for external disks) to the system or internally access by attaching to the backplane (for internal disks) of a system. You can view the connectors on the controller by expanding the controller object in the tree view.
Creating A Channel-Redundant Virtual Disk Using RAID 10 To create a channel-redundant virtual disk using RAID 10: 1. Select one physical disk on each of the two channels. 2. Select an additional disk on each of the two channels. You have now selected the minimum number of disks for a RAID 10. Repeat step 2 until you have selected the desired number of disks. 3. Click Continue to exit. Creating A Channel-Redundant Virtual Disk Using RAID 50 To create a channel-redundant virtual disk using RAID 50: 1.
Property Definition • Degraded — The connector has encountered a failure and is operating in a degraded state. Failed — The connector has encountered a failure and is no longer functioning. • Connector Type Displays whether the connector is operating in RAID or SCSI mode. Depending on the controller type, the connector can be either a SCSI connector or a SAS port. Termination Indicates the termination type of the connector. Possible values are: • • • • SCSI Rate Narrow — Indicates an 8–bit data bus.
If the enclosure health is displayed as degraded and further investigation shows all enclosure components (EMMs, Fans, Physical Disks, Power Supplies, and Temperature) to be in normal condition, select the Information/Configuration subtab of the enclosure to view details of the Path Failure. Clearing The Connectors Redundant Path View If you do not want the redundant path view, physically disconnect the connector port from the enclosure and reboot the system.
12 Tape Drive Tape drives contain several tape backup units (TBUs) on which data can be backed up. Storage Management enumerates the TBUs that are used for data back up. You can view the tape drives associated with a particular controller on the Tape Drives on Controller page. Topics: • Tape Drive Properties Tape Drive Properties Table 28. Tape Drive Properties Property Definition ID Displays the ID of the tape drive. Name Displays the name of the tape drive.
13 RAID Controller Batteries Some RAID controllers have batteries. If the controller has a battery, Storage Management displays the battery under the controller object in the tree view. If there is a power outage, the controller battery preserves data that is in the volatile cache memory (SRAM) but not yet written to disk. The battery is designed to provide a minimum backup of 24 hours. When a RAID controller is first installed in a server, the battery may need charging.
Property Definition Maximum Learn Delay Displays the maximum number of days and hours that you can delay the battery learn cycle. The controller firmware automatically initiates the battery learn cycle. You cannot stop or pause the learn cycle, but you can delay it. Battery Tasks To access the battery tasks: 1. In the Server Administrator window, under the system tree, expand the Storage dashboard to display the controller objects. 2. Expand a controller object. 3. Select Battery. 4.
14 Physical Disks Or Physical Devices Physical disks or physical devices reside within an enclosure or are attached to the controller. On a RAID controller, physical disks or devices are used to create virtual disks.
NOTE: Clicking the Refresh button in the right pane refreshes only the right pane. To view the new physical disk in the left pane tree view, click the system name displayed at the top of the left pane, or click View > Refresh on the browser. The new physical disk or physical device is displayed in the tree view after refreshing the display. If the new disk is not displayed, restart the computer. Related Information • • • If you are replacing a disk that is part of a virtual disk, see Replacing The Disk.
NOTE: Physical devices are applicable only to PCIe SSD. Table 30. Physical Disk Properties Property Definition Status These icons represent the severity or health of the storage component. — Normal/OK — Warning/Non-critical — Critical/Failure/Error For more information, see Storage Component Severity. Power Status Displays the power status of the physical drives. The power status is present only for H700 and H800 controllers and is not present in the Physical Disk for Virtual Disk page.
Property Definition • • • • • • • • Removed — The physical disk or device has been removed. This state applies only to physical disks that are part of a virtual disk. Clear — The Clear task is being performed on the physical disk or device. A physical disk or device may also display the Clear state if the physical disk or device is a member of a virtual disk that is being slow initialized. For more information, see Performing A Clear Physical Disk And Cancel Clear and Slow And Fast Initialize.
Property Definition identifying the cause of the SMART alert. The following alerts may be generated in response to a SMART alert: • • • • • • • 2094 2106 2107 2108 2109 2110 2111 For information on alert messages, see the Server Administrator Messages Reference Guide. Progress Displays the progress of an operation that is being an operation is that is being performed on the physical disk or device. Encryption Capable Displays whether the physical disk or device is a Self-Encryption Disk (SED).
Property Definition Firmware Revision Displays the firmware version of the physical device. Serial No. Displays the serial number of the disk. Part Number Displays the Piece Part Identification (PPID) of the physical drive. T10 Protection Information Capability Indicates whether the physical disk supports data integrity. The possible values are Yes and No. Sector Size Displays the sector size of the physical disk. The possible options are 512B and 4KB.
• • • • • • Cancelling A Rebuild Performing A Clear Physical Disk And Cancel Clear Enabling Revertible Hot Spare Performing Cryptographic Erase Convert To RAID Capable Disk Convert To Non-RAID Disk Blinking And Unblinking A Physical Disk Does my controller support this feature? See Supported Features. The Blink task allows you to find a disk within an enclosure by blinking one of the light-emitting diodes (LEDs) on the disk. You can use this task to locate a failed disk.
Canceling A Rebuild Does my controller support this feature? See Supported Features. Select the Cancel Rebuild task to cancel a rebuild that is in progress. If you cancel a rebuild, the virtual disk remains in a Degraded state. The failure of an additional physical disk can cause the virtual disk to fail and may result in data loss. It is recommended that you rebuild the failed physical disk as soon as possible.
2. Expand a controller object. 3. Expand a connector object. 4. Expand the enclosure or backplane object. 5. Select the Physical Disks object. 6. Select Online or Offline from the Tasks drop-down menu of the physical disk you want to make online or offline. 7. Click Execute. Performing A Clear Physical Disk And Cancel Clear Does my controller support this feature? See Supported Features. Select the Clear Physical Disk task to erase data residing on a physical disk.
To Locate Controller Task In Storage Management 1. In the Server Administrator window, under the system tree, expand Storage to display the controller objects. 2. Select a controller object on which you want to enable the revertible hot spare task. 3. Click Information/Configuration on the controller Properties page. 4. From the Controller Task drop-down list box, select Change Controller Properties and click Execute.
15 Virtual Disks A virtual disk refers to a storage created by a RAID controller from one or more physical disks. Although a virtual disk may be created from several physical disks, it is viewed by the operating system as a single disk. Depending on the RAID level used, the virtual disk may retain redundant data if there is a disk failure or have particular performance attributes. NOTE: Virtual disks can only be created on a RAID controller.
• • Number Of Virtual Disks Per Controller Calculation For Maximum Virtual Disk Size You may also want to review the following sections: • • • • RAID Controller Read, Write, Cache, And Disk Cache Policy Understanding Hot spares Controller - Supported Stripe Sizes Time Delay In Displaying Configuration Changes NOTE: In addition to this document, review the hardware documentation that is provided with the controllers.
• • Rebuilding data — An failed physical disk that is used by both redundant and nonredundant virtual disks cannot be rebuilt. Rebuilding a failed physical disk in this situation requires deleting the nonredundant virtual disk. Disk group concept consideration for S110 — Disk grouping is a logical grouping of disks attached to a RAID controller on which one or more virtual disks are created, such that all virtual disks in the disk group use all of the physical disks in the disk group.
NOTE: SATA RAID does not support disks from MX5016s. SAS RAID Controllers When using a SAS controller, the controller calculates the maximum virtual disk size based on the available disk space provided by the minimum number of physical disks required to create the RAID level you selected. For example, if you specified a RAID 5, then the controller calculates the maximum virtual disk size based on three physical disks, because only three physical disks are required to create a RAID 5.
Table 31.
1. Locate the controller on which the virtual disk resides in the tree view. Expand the controller object until the Virtual Disks object is displayed. 2. Select the Check Consistency task from the virtual disk’s Tasks drop-down list box and click Execute. Rebuilding Redundant Information Does my controller support this feature? See Supported Features. If you have a redundant virtual disk, you can reconstruct the contents of a failed physical disk onto a new disk or a hot spare.
RAID Level Virtual Disk State Scenario Result RAID 6 Degraded (two failed/missing physical disks) One bad block on a physical disk. The controller cannot regenerate data from the peer disks. This results in a virtual disk bad block. RAID 6 Ready One bad block on a physical disk. The controller regenerates data from peer disks and sends a Write to the bad block. The disk then remaps the Logical Block Addressing (LBA) to another physical location. The problem is resolved.
Property Definition For all the disk which are not part of the virtual disk will display as NON-Raid Disks for systems running on Enhanced HBA mode. Hot-plugged in disks will also come up as NONRAID disks. State Displays the status of the virtual disk. Possible values are: • • • • • • • • • • • • Ready — The virtual disk is functioning normally. Degraded — A physical disk in a redundant virtual disk is not online. Resynching — A consistency check is being performed on the virtual disk.
Property Definition Media Displays the media type of the physical disks present in the virtual disk. The possible values are: • • • HDD SSD Unknown — Storage Management is unable to determine the media type of the physical disk. NOTE: You cannot have a mix of HDD and SSD media on a virtual disk. Also, you cannot have a mix of SAS and SATA drives on the virtual disk. Read Policy Displays the read policy that the controller is using for the selected virtual disk.
• • Clearing Virtual Disk Bad Blocks Encrypting A Virtual Disk Reconfiguring A Virtual Disk Does my controller support this feature? See Supported Features. The Reconfigure task enables you to change the virtual disks properties. For example, you can use this task to add physical disks or change the RAID level. Format, Initialize, Slow, And Fast Initialize Does my controller support this feature? See Supported Features.
Pausing A Check Consistency Does my controller support this feature? See Supported Features. The Pause Check Consistency task pauses a check consistency while it is in progress. NOTE: The Pause Check Consistency task updates the virtual disk State property to Resynching Paused immediately. The Progress property may continue to increment for up to three seconds. This time delay occurs because the polling task may take up to three seconds to query the task information and update the display.
Clearing Virtual Disk Bad Blocks Does my controller support this feature? See Supported Features. The Clear Virtual Disk Bad Blocks task enables you to clear bad blocks on your virtual disk. The CLI command omconfig clearvdbadblocks is used to clear the bad blocks on the affected drives. This only clears the cached errors from the controllers by clearing out the table of bad blocks that the PERC firmware is maintaining for virtual disks.
• • • Select RAID 10 for striping over mirror sets. This selection groups n disks together as one large virtual disk with a total capacity of (n/2) disks. Data is striped across the replicated mirrored pair disks. When a disk fails, the virtual disk continues to function. The data is read from the surviving mirrored pair disk. This feature provides the best failure protection, read and write performance. The system must have at least four physical disks to use RAID 10.
To create a virtual disk using the Create Virtual Disk Advanced Wizard: 1. On the left-hand side of the Server Administrator page, expand Storage. 2. Click on the . 3. Click on Virtual Disks. The Virtual Disk(s) on Controller page is displayed. 4. Click Go to the Create Virtual Disk Wizard. The Create Virtual Disk Wizard (Step 1) page is displayed. 5. Select the Advanced Wizard option. 6.
NOTE: It is recommended that you use Intelligent Mirroring to create RAID 10 across enclosures for simple and optimum configuration. NOTE: After a hard disk being used to create RAID 10 VD with Intelligent Mirroring enabled, the same disk cannot be used to create another RAID 10 VD with Intelligent Mirroring enabled.
NOTE: The All Disks and Enclosure options enable you to edit spans after selecting the physical disks that comprise them. You can remove a span and specify a span again with different physical disks before proceeding. • Number of Disks per Span — Enables you to select the number of disks in each span (default = 2). This option is available only on SAS controllers with firmware version 6.1 and later.
NOTE: If you have selected the Create Encrypted Virtual Disk option in Create Virtual Disk Advanced Wizard, then in the Summary of Virtual Disk Attributes, an Encrypted Virtual Disk attribute is displayed with a value Yes. Click Span Edit to edit the spans created in Create Virtual Disk Advanced Wizard. The Span Edit option is available only if the controller is a SAS controller with firmware 6.1 and later and if you selected RAID 10.
2. Expand a controller object. 3. Select the Virtual Disks object. 4. Select Reconfigure from the Available Tasks drop-down box. 5. Click Execute. Virtual Disk Task - Reconfigure Step 2 of 3 Does my controller support this feature? See Supported Features. The virtual disk reconfigure Step 2 page enables you to select the RAID level and size for the reconfigured virtual disk. The Expand Capacity option appears only for PERC H730P MX and PERC H745P MX controllers with firmware version 7.1 or later.
To Reconfigure A Virtual Disk Expand Virtual Disk Capacity - Step 2 of 3 NOTE: For RAID 10 partial virtual disks, there are only two methods to increase the disk size or capacity: • Expanding the capacity by increasing the percentage value. • Adding disks into the original RAID 10 virtual disk. 1. Enter the percentage of the free disk size available by which you want to expand the virtual disk capacity. The page displays the maximum free size available and the description of the selected RAID level. 2.
1. Review the virtual disk that is destroyed by the Format or Initialize and make sure that vital data is not lost. Click Blink at the bottom of the page to blink the physical disks included in the virtual disk. 2. Depending on the task you are initiating, click the following option when ready: • • • • Format Initialize Slow Initialize Fast Initialize To exit without formatting or initializing the virtual disk, click Go Back To Virtual Disk Page. To Locate Virtual Disks Task In Storage Management 1.
Renaming A Virtual Disk Does my controller support this feature? See Supported Features. Renaming a virtual disk enables you to change the name of the virtual disk. The numbering format for the virtual disk remains unchanged. Depending on the controller you have, there are different considerations regarding the controller BIOS: The virtual disk name can contain only alphanumeric characters as well as spaces, dashes and underscores. The maximum length of the name depends on the controller.
Use the Split Mirror task to separate mirrored data originally configured as a RAID 1, RAID 1-concatenated, or RAID 10 virtual disk. Splitting a RAID 1 or RAID 1-concatenated mirror creates two concatenated non-redundant virtual disks. Splitting a RAID 10 mirror creates two RAID 0 (striped) non-redundant virtual disks. Data is not lost during this operation. NOTE: On Linux operating systems, a Split Mirror cannot be performed on a mounted virtual disk.
Assigning A Dedicated Hot Spare 1. Select the disk in the Connector (channel or port) table that you want to use as the dedicated hot spare. On some controllers, more than one disk can be selected. The disks you have selected as dedicated hot spares are displayed in the Disks currently configured as dedicated hot spare table. 2. Click Apply Changes when ready.
NOTE: You can select only one source or destination physical disk at a time. 3. Click Apply Changes. To exit without replacing the member disk, click Go Back To Virtual Disk Page. You can view the progress of the Replace Member Disk task on the Physical Disk Details page.
16 Moving Physical And Virtual Disks From One System To Another This section describes how to move physical and virtual disks from one system to another. Topics: • • Required Conditions Migrating SAS Virtual Disks To Another System Required Conditions SAS Controllers Virtual disks can only be migrated to a controller that is using the same technology. For example, virtual disks on a SAS controller must be migrated to a SAS controller.
17 Protecting Your Virtual Disk With A Hot Spare When you create a virtual disk using a RAID controller, it enables the system to continue functioning even during a disk failure. This feature can be enabled by assigning a hot spare to the virtual disk. When a disk fails, the redundant data is rebuilt onto the hot spare without interrupting system operations.
Global Hot Spare Protection Policy Table 35. Global Hot Spare Protection Policy Properties Property Definition Enable Global Hot Spare Enables the Global Hot Spare Protection Policy. Minimum Number of Disks Displays the minimum number of physical disks to be assigned as global hot spares for the controller. Severity Level Displays the severity level that you must assign to the generated alert, if the Global Hot Spare policy is violated.
18 Troubleshooting This section contains troubleshooting procedures for common situations as well as for specific problems. Topics: • • • • Common Troubleshooting Procedures Virtual Disk Troubleshooting Specific Problem Situations And Solutions PCIe SSD Troubleshooting Common Troubleshooting Procedures This section describes commands and procedures that can be used in troubleshooting.
Isolate Hardware Problems If you receive a timeout alert related to a hardware device or if you otherwise suspect that a device attached to the system is experiencing a failure, then to confirm the problem: • • Verify that the cables are correctly connected. If the cables are correctly connected and you are still experiencing the problem, then disconnect the device cables and reboot the system. If the system reboots successfully, then one of the devices may be defective.
Using The Physical Disk Online Command On Select Controllers Does my controller support this feature? See Supported Features. If you do not have a suitable backup available, and if the failed disk is part of a virtual disk on a controller that supports the Online physical disk task, then you can attempt to retrieve data by selecting Online from the drop-down task menu of the failed disk. The online command attempts to force the failed disk back into an online state.
• • • • • You are attempting to rebuild onto a hot spare that is too small — Different controllers have different size requirements for hot spares. The hot spare has been unassigned from the virtual disk — This occurs on some controllers if the hot spare is assigned to more than one virtual disk and is being used to rebuild a failed physical disk for another virtual disk. The virtual disk includes failed or corrupt physical disks — This situation may generate alert 2083.
4. Restore your data from backup. Irrespective of whether your Linux operating system limits the virtual disk size to 1TB, the virtual disk size depends on the version of the operating system and any updates or modifications that you have implemented. For more information on operating system, see your operating system documentation.
• • Virtual disk format I/O If you receive alerts 2146 through 2150 as the result of performing a rebuild or while the virtual disk is in a degraded state, then data cannot be recovered from the damaged disk without restoring from the backup. If you receive alerts 2146 through 2150 under circumstances other than a rebuild, then data recovery may be possible. The following describes each of these situations.
Storage Management May Delay Before Updating Temperature Probe Status In order to display the enclosure temperature and temperature probe status, Storage Management polls the enclosure firmware at regular intervals to obtain temperature and status information. On some enclosures, there is a short delay before the enclosure firmware reports the current temperature and temperature probe status. This may cause a delay in displaying the correct temperature and temperature probe status.
PCIe SSD Troubleshooting The following sections describe troubleshooting procedures for PCIe SSD.
19 Frequently Asked Questions This section provides frequently asked questions that address situations commonly experienced in a storage environment.
How Do I Identify The Firmware Version That Is Installed The properties information of the controller displays the firmware version that is installed on the controller. From the Storage tree view object, you can display the firmware version for all controllers attached to the system. You can also view this information in the Information/Configuration page of the controller. To display the firmware version of all controllers: 1. Select the Storage object in the tree view. 2.
20 Supported Features Different controllers support different features. The tasks displayed by the Storage Management menus and other features vary depending on whether the controller supports the feature. This chapter lists the features supported by the controllers. For more information on Controllers, see your hardware documentation. NOTE: The order of the controllers displayed on Storage Management may differ with the order of the controllers displayed in the Human Interface (HII) and PERC Option ROM.
• • Supported RAID Levels Read, Write, Cache And Disk Cache Policy Controller Tasks Supported On PERC Hardware Controllers Slot Occupancy Report — PERC H730 and H730P support flexible backplane zoning functionality. The flexible backplane zoning functionality is available only on backplanes that support 24 slots—PowerEdge R630 and R730xd. For more information on flexible backplane zoning, see Backplanes. NOTE: PERC H840 Adapter is supported only on PowerEdge yx3x and yx4x generation of servers. Table 36.
Controlle r Task Name PERC H730P Adapter/ Mini Monolithic /Mini Blades/ Slim PERC H730 Adapter/ Mini Monolithi c/Mini Blades Import Foreign Configur ation Yes Yes Yes Yes Yes Yes Yes Yes Yes Import/ Recover Foreign Configur ation Yes Yes Yes Yes Yes Yes Yes Yes Yes Set Patrol Read Mode Yes Yes Yes Yes Yes Yes Yes Yes Yes Start Patrol Read Yes Yes Yes Yes Yes Yes Yes Yes Yes Convert RAID To NonRAID Yes Yes No Yes Yes No Yes Yes No Convert NonRAID To RAID
Controlle r Task Name PERC H730P Adapter/ Mini Monolithic /Mini Blades/ Slim PERC H730 Adapter/ Mini Monolithi c/Mini Blades PERC H740P Adapter/ Mini Monolithic PERC H330 Adapter/ Mini Monolithi c/Mini Blades/ Embedde d PERC H830 Adapter PERC H840 PERC Adapter FD33xD/ FD33xS PERC H730P MX PERC H745P MX Disk Cache Policy Yes Yes Yes Yes Yes Yes Yes Yes Yes Managing Preserve d Cache Yes Yes Yes No Yes Yes Yes Yes Yes Manage Encryptio n Key Yes Yes Yes No Yes Yes Yes Yes Y
Controlle r Task Name PERC H730P Adapter/ Mini Monolithic /Mini Blades/ Slim Physical Yes Disk Firmware Version Report PERC H730 Adapter/ Mini Monolithi c/Mini Blades PERC H740P Adapter/ Mini Monolithic PERC H330 Adapter/ Mini Monolithi c/Mini Blades/ Embedde d PERC H830 Adapter Yes Yes Yes Yes PERC H840 PERC Adapter FD33xD/ FD33xS Yes PERC H730P MX Yes PERC H745P MX Yes Yes Battery Tasks Supported On PERC Hardware Controllers NOTE: The Battery Tasks are not supported on PERC Hardware Cont
Physical Disk Tasks Supported By PERC Hardware Controllers Table 39.
Virtual Disk Tasks Supported By PERC Hardware Controllers Table 40.
Virtual Disk Task Name PERC H730P Adapter / Mini Monolith ic/Mini Blades/ Slim PERC H730 Adapter/ Mini Monolith ic/Mini Blades PERC H740P Adapter/ Mini Monolithic PERC PERC H330 H830 Adapter/ Adapter Mini Monolithic /Mini Blades/ Embedded PERC H840 Adapter PERC FD33xD/ FD33xS PERC H730P MX PERC H745P MX Format Virtual Disk No No No No No No No No No Cancel Format Virtual Disk No No No No No No No No No Restore Dead Disk Segments No No No No No No No No No Fast Initiali
Virtual Disk Specification PERC H730P Adapter/ Mini Monolithic /Mini Blades/ Slim PERC H730 Adapter/ Mini Monolithi c/Mini Blades PERC H740P Adapter/ Mini Monolithic PERC H330 PERC Adapter/ H830 Mini Adapter Monolithic/ Mini Blades/ Embedded PERC H840 Adapter PERC FD33xD/ FD33xS PERC H730P MX PERC H745P MX Maximum Number of Spans per Virtual Disk 8 8 8 8 8 8 8 8 8 Maximum Number of Physical Disks per Span 32 32 32 8 32 32 32 32 32 Minimum Stripe Size 64 K 64 K 64 K 64 K 64
Virtual Disk Specification PERC H730P Adapter/ Mini Monolithic /Mini Blades/ Slim PERC H730 Adapter/ Mini Monolithi c/Mini Blades PERC H740P Adapter/ Mini Monolithic PERC H330 PERC Adapter/ H830 Mini Adapter Monolithic/ Mini Blades/ Embedded PERC H840 Adapter PERC FD33xD/ FD33xS PERC H730P MX PERC H745P MX Minimum Number of Physical Disks in a RAID 1 2 2 2 2 2 2 2 2 2 Minimum Number of Physical Disks in a RAID 5 3 3 3 3 3 3 3 3 3 Minimum Number of Physical Disks in a RAID 10 4
Table 42.
Read, Write, and Cache Policy PERC H730P Adapter/ Mini Monolithic/ Mini Blades/ Slim PERC H730 Adapter / Mini Monolit hic/Mini Blades PERC H740P Adapter/ Mini Monolithi c PERC H330 PERC Adapter/ H830 Mini Adapter Monolithic/ Mini Blades/ Embedded PERC H840 Adapter PERC FD33xD/ FD33xS PERC H730P MX PERC H745P MX Cache Policy No No No No No No No No No Disk Cache Policy Yes Yes Yes Yes Yes Yes Yes Yes Yes Cache I/O No No No No No No No No No Direct I/O No No No No N
NOTE: When you perform the Prepare to Remove operation on the physical disk, the associated virtual disk will be in failed state. NOTE: The operation failed to complete message is displayed, if you perform the Prepare to Remove operation on the physical disk of Boot virtual disk/mounted virtual disk. Virtual Disk Tasks Supported By The PERC Software Controllers Table 46.
Virtual Disk Specification PERC S150 Maximum Number of Physical Disks in a RAID 10 16 Minimum Number of Physical Disks that Can Be Concatenated NA Minimum Number of Physical Disks in a RAID 0 2 Minimum Number of Physical Disks in a RAID 1 2 Minimum Number of Physical Disks in a RAID 5 3 Minimum Number of Physical Disks in a RAID 10 4 NOTE: When creating virtual disks using software RAID controllers, the information related to the physical disks linked to the virtual disk is enumerated or displ
Read, Write, and Cache Policy PERC S150 Disk Cache Policy No Cache I/O No Direct I/O No Enclosure Support On The PERC Software RAID Controllers Table 50.
21 Determining The Health Status For Storage Components The chapter describes how the status of lower-level storage components is “rolled up" into the combined status displayed for the controller or other higher-level component. The examples provided by these tables do not cover all scenarios, but they do indicate how status is rolled up when a particular component is in a healthy, degraded, or failed state.
Storage Subsystem Controller Battery Connector Physical Disk(s) Firmware/ Driver Virtual Disks Health Rollup Health Status Rollup - Physical Disks In A Virtual Disk Are Unsupported, Partially, Or Permanently Degraded Table 53.
Health Status Rollup - Virtual Disk Is Degraded, Physical Disks Are Failed Or Rebuilding Table 56. Health Status Rollup: Virtual Disk is Degraded; Physical Disks are Failed or Rebuilding (Enclosures Not Included) Storage Subsystem Controller Battery Connector Physical Disk(s) Firmware/ Driver Virtual Disk(s) Component Status Health Rollup Health Status Rollup - Virtual Disk Is Failed Table 57.
Health Status Rollup - One Enclosure EMM Is Failed Table 60. Health Status Rollup: One Enclosure EMM is Failed Storage Subsystem Controller Connector Enclosure Enclosure EMM Virtual Disks Physical Disks Component Status Health Rollup N/A Health Status Rollup - Lost Both Power Connections To The Enclosure Table 61.
Health Status Rollup - Physical Disk Is Rebuilding Table 63.
