H Owner’s Guide HP SureStore E Disk Array XP512 HP SureStore E Disk Array XP48
Notice Safety notices © 2000, Hewlett-Packard Company. Order number A5951-90900 Any servicing, adjustment, maintenance, or repair must be performed only by authorized service-trained personnel. E1100 A5951-96170 Caution Denotes a hazard that can cause hardware or software damage. Hewlett-Packard Company makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
CONTENTS Revision History Updates 8 1 7 About the HP SureStore E Disk Array XP512 and XP48 9 Continuous Data Availability 10 Nondisruptive Service and Upgrades 11 Connectivity 12 Fibre Channel Connectivity 12 ESCON Connectivity 13 Data Integrity 14 Comparing the XP512 to the XP48 16 Websites 18 2 The HP SureStore E Disk Array XP512 Hardware General Safety Guidelines 20 Physical Components 22 Disk Control Frame 24 Control Panel 24 Service Processor 25 Disk Array Frames 26 Available Disk Drives 26 RAI
UNIT EMERGENCY POWER OFF 35 Normal Operations 37 Powering Off the Disk Array 38 UNIT EMERGENCY POWER OFF 38 Planned Power-Off 39 Recovering from a Power Outage to the Disk Array Specifications 42 Temperature 42 Humidity 42 Mechanical Vibration 43 AC Line Voltage 43 3 The HP SureStore E Disk Array XP48 Hardware General Safety Guidelines 46 Physical Components 48 Control Panel 51 UNIT EMERGENCY POWER OFF 55 Normal Operations 57 Powering Off the Disk Array 58 UNIT EMERGENCY POWER OFF 58 Planned Power-Off 59
4 The HP SureStore E Disk Array XP Family of Optional Software 65 Web-Based Console 66 HP SureStore E Command View XP 66 Security 67 HP SureStore E Secure Manager XP 67 Core Solutions 68 HP SureStore E Cache LUN XP 68 HP SureStore E LUN Configuration Manager XP 68 HP SureStore E Remote Control XP 68 Disaster Recovery 70 HP SureStore E Continuous Access XP 70 HP SureStore E Continuous Access Extension XP 70 High Availability 71 HP SureStore E Business Copy XP 71 Failover and Load Balancing 72 HP SureStore E
Regulatory Statements 81 FCC EMC Statement (USA) 82 IEC Statement (Worldwide) 83 EMC Statement (Canada) 84 Spécification ATI Classe A (France) 85 VCCI EMC Statement (Japan) 86 BSMI EMC License Number and Statement (Taiwan) XP512 87 XP48 87 Harmonics Conformance (Japan) 88 German Noise Declaration 89 Laser Safety 90 Declaration of Conformity 91 XP512 Declaration of Conformity 92 XP48 Declaration of Conformity 93 A Raid Technology 95 Using RAID0/1 96 Understanding RAID3 98 Using RAID5 99 Configuring
Revision History June 1, 2000 Original release for the HP SureStore E Disk Array XP512 November 7, 2000 Addition of the HP SureStore E Disk Array XP48 7
Updates For the most current information about HP SureStore E XP products, visit the support web sites at: www.hp.com/support/xp256 www.hp.com/support/xp512 www.hp.com/support/xp48 For information about product availability, configuration, and connectivity, consult your HP account representative.
1 ABOUT THE HP SURESTORE E DISK ARRAY XP512 AND XP48 Your new disk array is a refinement of the successful HP SureStore E Disk Array XP256 from HP. It provides reliable and secure data protection featuring redundant circuitry and RAID storage options for data security. The disk array also supports multiple operating systems, platforms, and RAID groups.
Continuous Data Availability The XP family of disk arrays are the first RAID disk arrays to provide truly continuous data availability. They are designed for nonstop operation and continuous access to all user data. HP XP512 and XP48 disk arrays have no single point of component failure, which enables uninterrupted access to data.
Nondisruptive Service and Upgrades Monitoring software detects failed disk drives or internal hardware and notifies the HP Stress Free Central support center automatically so an HP service representative can replace the faulty hardware. There is no need to be concerned with user serviceable components. Only an HP Service Representative should open the cabinets. All hardware subassemblies can be removed, serviced, repaired, or replaced nondisruptively during disk array operation.
Connectivity To connect the XP512 or the XP48 disk array to a host system, these two types of connections are available: • Fibre Channel • ESCON (Enterprise System Connection) Fibre Channel Connectivity XP512 The XP512 supports a maximum of four pairs of channel adapters that can support up to 32 Fibre Channel ports. Each port is assigned a unique target ID (TID) and can support 256 logical units (LUs).
ESCON Connectivity XP512 The XP512 supports a maximum of four pairs of channel adapters that can support 32 ESCON ports. XP48 The XP48 supports a maximum of three pairs of channel adapters that can support 24 ESCON ports.
Data Integrity The highest levels of data integrity are provided by HP disk arrays. This is accomplished by using RAID technologies, along with redundant hardware throughout your disk array. Refer to the Appendix for more information about RAID technology.
• Full software and solution integration local and remote mirroring for online backup and disaster recovery (HP SureStore E Business Copy XP and Continuous Access XP) security for multiple-serve consolidation (HP SureStore E Secure Manager XP) zero downtime backup (HP OmniBack, Exchange, Oracle, or SAP) centralized resource management (HP SureStore E SAN Manager LM/DM, Performance Manager XP, Performance Advisor XP, and Auto LUN XP) easy to use interface to access your disk array resources (HP SureStore E R
Comparing the XP512 to the XP48 The XP512 and the XP48 are members of the same product family. The main differences are in configuration capacities. Except as limited by the configuration limitations, the XP512 and XP48 provide identical functionality. There are some additional differences. For example, the XP48 ACP is an integral part of the XP48 and cannot be removed or interchanged. The following table describes the differences between the XP512 and XP48 disk arrays. Table 1.
Table 1. Comparing the XP512 to the XP48 (continued) Feature XP512 XP48 Available hard disk drives 73GB 10K rpm Fibre Channel 73GB 10K rpm Fibre Channel disk drive disk drive 47GB 10K rpm Fibre Channel 18 GB 10K rpm Fibre Channel disk drive disk drive 18 GB 10K rpm Fibre Channel disk drive Max shared memory 1.28GB 1.
Websites For the most current information about the XP family of disk arrays, visit these websites: www.hp.com/support/xp256 www.hp.com/support/xp512 www.hp.
2 THE HP SURESTORE E DISK ARRAY XP512 HARDWARE 19
General Safety Guidelines Read the following safety guidelines carefully and follow them when you work with your XP512 disk array. • Remember that the maintenance of your machine must be done only by trained and qualified HP field engineers. Only an HP Service Representative can power off the disk array. • Please read and follow the safety guidelines and procedures in this manual and any of your related manuals.
• If any physical accident such as abnormal noise, smell, or smoke occurs on the disk subsystem while running, immediately power off the disk subsystem by pulling the UNIT EMERGENCY POWER OFF switch on the disk subsystem. • Do not power off the system unless it is a UNIT EMERGENCY POWER OFF situation. • Keep the front and rear doors closed at all times. • Keep the tops and sides of the cabinets clear to allow air to flow properly. • Do not perform any procedures not described in this document.
Physical Components Your HP SureStore E Disk Array XP512 is a high-performance RAID-capable disk array system. It is used to store large quantities of data in an efficient and secure manner. Optional Remote Control PC Control Panel Disk Array Frame 6 Disk Array Frame 4 Disk Array Frame 3 Disk Control Frame Disk Array Frame 1 Disk Array Frame 2 Disk Array Frame 5 Figure 1.
Your disk array has the following major hardware components: • One disk control frame The single disk control frame cabinet contains the control panel, connection hardware, the service processor, and control boards for the disk arrays. • One to six disk array frames The disk array frame cabinets contain your disk drives. You can connect up to six disk array frames to your HP SureStore E Disk Array XP512. • One service processor (SVP) The SVP is an internally mounted laptop computer used for maintenance.
Disk Control Frame The disk control frame controls your disk array. It provides you with a control panel, power supplies, controller boards, and your service processor. Control Panel Disk Control Frame Figure 2. Disk Control Frame There is no single point of failure in the disk array. It is designed with redundant controllers and redundant power supplies, all of which can be removed or replaced without interrupting access to your data. Only your HP Service Representative can remove or replace hardware.
Service Processor The service processor (SVP) is a built-in PC connected inside the disk control frame. The SVP gives your HP Service Representative a method to access the software system on the disk array. Your HP Service Representative uses the SVP to configure, maintain, and upgrade your disk array software and hardware. The service processor also collects performance data on the disk array for diagnostic testing and analysis.
Disk Array Frames The disk array frames are where your physical disk drives, the disk groups, and any dynamic spare disk drives are located. You must have at least one disk array frame to operate the system, and you may have up to a maximum of six disk array frames installed on your system. If you have six disk array frames that are fully populated with disk drives, you will have a maximum of up to 37 TB. Available Disk Drives Your disk array uses 3.
Disk Array Frame 6 Disk Array Frame 4 Disk Array Frame 3 Disk Array Frame 1 Disk Array Frame 2 Disk Array Frame 5 Figure 3. Disk Array Frames Remote Console PC (optional) The remote console PC is for user access to the system software. Your remote console PC runs a main remote control application and other standard and optional software to manage and monitor the disk array. Your remote console PC can be connected to up to eight disk arrays, using a special LAN connection. See figure 4 (page 28).
Optional Remote Control PC 4 1 1 1 1 Disk Array Disk Controller Disk Array 3 Server Host 2 Figure 4. XP512 Disk Array Connections to the XP512 disk array include: Table 2.
The specific hardware requirements for your remote console PC, such as the required processor speed, storage capacity, and memory, will vary depending on the optional software that you use and the number of disk array frames you have connected to the system. To protect your user’s security, the RC software for the remote console PC does not have access to any user data stored on the disk array.
Control Panel Figure 5 (page 31) and table 3 (page 32) show the control panel and its functions, respectively.
4 XP512 1 2 3 SUB-SYSTEM REMOTE MAINTENANCE RESTART READY 5 PROCESSING ENABLE ALARM 6 MESSAGE DISABLE STORAGE CLUSTER 1 7 A B C D 7 E F G H H J K L M N P Q R 7 7 STORAGE CLUSTER 2 8 A B C D 8 E F G H 8 J K L M 8 N P Q R FRONT VIEW 11 9 BS-ON PS-ON POWER SW ENABLE 12 ON ON OFF OFF 14 10 POWER REMOTE LOCAL 13 LED TEST EMERGENCY UNIT EMERGENCY POWER OFF 15 CHK RS T Figure 5.
Table 3. Part Function on Control Panel Item Label Indicator Description 1 SUBSYSTEM READY LED (Green) Indicates that input/output operation on the channel interface is enabled. If the LED is off, the system is not accepting data. 2 SUBSYSTEM ALARM LED (Red) Indicates DC under voltage, DC over current, abnormally high temperature, or an unrecoverable failure has occurred. Expect a call from your HP Service Representative.
Table 3. Part Function on Control Panel (continued) Item Label Indicator 7 STORAGE CLUSTER 1 LED (Green) CHANNEL A-R ENABLE Description Serial Channel/Fibre Channel: (1) On: Indicates some of the logical paths are established. (2) Fast blinking: Indicates that the corresponding channel route is executing the channel command. (Only Serial Channel) (3) Slow blinking: Indicates none of the logical paths are established. (4) Off: Indicates that the corresponding channel route is not enabled.
Table 3. Part Function on Control Panel (continued) Item Label Indicator Description 9 BS ON LED (Yellow) When the LED is on, unit is plugged in and receiving power from the primary AC outlet. The SVP is receiving power from the outlet. If BS is off, then the disk array is not receiving power from the primary AC outlet. Check the electrical outlets in your building. 10 PS ON LED (Green) When the LED is on, the power switch is on, and the array is ready to receive data.
UNIT EMERGENCY POWER OFF A switch is provided on the control panel on the front side of the disk control frame (DKC) for an emergency powering off. If you encounter any abnormality such as an abnormal sound, smell, or smoke, power off the disk subsystem by operating the UNIT EMERGENCY POWER OFF switch following the procedure below. The procedure for operating the switch is as follows: 1.
Control Panel Cover Control Panel UNIT EMERGENCY POWER OFF PUSH 1 DKC 2 DKC Figure 6.
Normal Operations The disk array does not require intervention from the user. The disk array reports any remote error messages (R-SIMs) to your remote console PC and also sends the report to the HP Service Center automatically. The RC software allows the HP Service Representative to view the R-SIMs by date and time or by controller and to manage the R-SIM log file on the remote console PC. For more information on SIMs, see “Troubleshooting” (page 77).
Powering Off the Disk Array Situations may arise in the operation of the disk array that require the user to power off the disk array. These situations include: • UNIT EMERGENCY POWER OFF • Planned power-off UNIT EMERGENCY POWER OFF An emergency is a critical situation such as a physical plant catastrophe such as a flood, hurricane, tornado, or a threat of injury or death to a person. In an emergency, the critical need is to quickly remove power from the disk array. A quick restart is not necessary.
Planned Power-Off There may be times when a site power outage is planned. These situations would include alterations to the data center, inspections, or work by the electric company. If a scheduled power outage affects an HP SureStore E Disk Array XP512, the power-off of the disk array must be scheduled with a trained HP support representative. Caution Only a trained HP representative can shut down and power off a disk array. Shutting down and powering off a disk array is not a customer activity.
Recovering from a Power Outage to the Disk Array A power outage to the array is when the primary building power is lost due to electrical blackouts, thunderstorm activity, etc., and input AC power is not received by the array. The disk array will maintain its state and recover when power is restored. The array cache is backed up by batteries that will maintain its state for a minimum of 48 hours. This length of time will provide coverage for most outages.
Caution Powering on the disk array may take upwards of 10 minutes, depending on the number of disks installed in your disk array. Power-on is complete only when the READY LED turns green. 4. Move the REMOTE/LOCAL switch on the front panel (14, figure 5 (page 31)) to the REMOTE position.
Specifications Some of the XP512 disk array specifications are listed in this section. Refer to the HP SureStore E Disk Array 48 Site Prep Guide in the XP48 www.hp.com/support/xp512 for a complete set of XP512 specifications. Temperature Table 4. Temperature Specifications Temperature Specifications (Degrees F = 1.
Mechanical Vibration Maximum operating acceleration 0.05G at a frequency range of 10 to 300 Hz AC Line Voltage The following tables detail the AC line voltage. Table 6. 1-Phase 60 Hz Operation Specification 60 Hz-V1 60 Hz-V2s 60 Hz-V3 Nominal rated voltage (vac) 200 208 230 Minimum operating voltage (vac) 184 191 212 Maximum operating voltage (vac) 212 220 244 Rated line current—DKU (arms) 12.3 11.9 10.6 Rated line current—DKC (arms) 5.7 5.6 5.
Table 8. 3-Phase 60 Hz Operation Specification 60 Hz-V1 60 Hz-V2s 60 Hz-V3 Nominal rated voltage (vac) 200 208 230 Minimum operating voltage (vac) 184 191 212 Maximum operating voltage (vac) 212 220 244 Rated line current (arms) 15 14.7 13.2 Dropout carry-through time at minimum line voltage (ms) 500 500 500 Table 9.
3 THE HP SURESTORE E DISK ARRAY XP48 HARDWARE 45
General Safety Guidelines Read the following safety guidelines carefully and follow them when you work with your XP48 disk array. • Remember that the maintenance of your machine must be done only by trained and qualified HP field engineers. Only an HP Service Representative can power off the disk array. • Please read and follow the safety guidelines and procedures in this manual and any of your related manuals.
• If any physical accident such as abnormal noise, smell, or smoke occurs on the disk subsystem while running, immediately power off the disk subsystem by pulling the UNIT EMERGENCY POWER OFF switch on the disk subsystem. • Do not power off the system unless it is a UNIT EMERGENCY POWER OFF situation. • Keep the front and rear doors closed at all times. • Keep the tops and sides of the cabinets clear to allow air to flow properly. • Do not perform any procedures not described in this document.
Physical Components Your HP SureStore E Disk Array XP48 is a high-performance disk array system. It is used to store large quantities of data in an efficient and secure manner. Figure 7. HP SureStore E Disk Array XP48 Your disk array has the following major hardware components: • disk array cabinet The single disk array frame cabinet contains the control panel, connection hardware, the service processor, control boards, and hard disk drives.
Your HP Service Representative uses the SVP to configure, maintain, and upgrade your disk array software and hardware. The service processor also collects performance data on the disk array for diagnostic testing and analysis. To protect the user’s security, the SVP does not have access to any user data stored on the disk array. • control panel The control panel is your view to the disk array.
The following figure illustrates how the remote console and host connect to the XP48. Remote Console 1 XP48 Disk Array 2 Host Figure 8. The XP48 Connections 1. The remote console connects via the XP48 LAN connection. The XP48 has an Ethernet connection to connect your disk array to a private LAN or a public (Internet) LAN. 2. The host server uses a Fibre Channel or ESCON connection.
Control Panel Figure 9 and table 10 (page 52) show the control panel and its functions, respectively. 4 XP48 1 2 3 REMOTE MAINTENANCE SUB-SYSTEM RESTART READY 5 PROCESSING ENABLE ALARM 6 MESSAGE DISABLE STORAGE CLUSTER 1 7 A B C D E F G H J K L M 7 7 STORAGE CLUSTER 2 8 A B C D E F G H J K L M 8 FRONT VIEW 8 11 9 BS-ON PS-ON POWER SW ENABLE 12 ON ON OFF OFF 14 10 POWER REMOTE LED TEST LOCAL CHK RS T 15 13 EMERGENCY UNIT EMERGENCY POWER OFF Figure 9.
Table 10. Part Function on Control Panel Item Label Indicator Description 1 SUBSYSTEM READY LED (Green) Indicates that input/output operation on the channel interface is enabled. If the LED is off, the system is not accepting data. 2 SUBSYSTEM ALARM LED (Red) Indicates DC under voltage, DC over current, abnormally high temperature, or an unrecoverable failure has occurred. Expect a call from your HP Service Representative.
Table 10. Part Function on Control Panel (continued) Item Label Indicator 7 STORAGE CLUSTER 1 LED (Green) CHANNEL A-R ENABLE Description Serial Channel/Fibre Channel: (1) On: Indicates some of the logical paths are established. (2) Fast blinking: Indicates that the corresponding channel route is executing the channel command. (Only Serial Channel) (3) Slow blinking: Indicates none of the logical paths are established. (4) Off: Indicates that the corresponding channel route is not enabled.
Table 10. Part Function on Control Panel (continued) Item Label Indicator Description 9 BS ON LED (Yellow) When the LED is on, unit is plugged in and receiving power from the primary AC outlet. The SVP is receiving power from the outlet. If BS is off, then the disk array is not receiving power from the primary AC outlet. Check the electrical outlets in your building. 10 PS ON LED (Green) When the LED is on, the power switch is on, and the array is ready to receive data.
UNIT EMERGENCY POWER OFF A switch is provided on the control panel for an emergency powering off. If you encounter any abnormality such as an abnormal sound, smell, or smoke, power off the disk subsystem by operating the UNIT EMERGENCY POWER OFF switch following the procedure below. The procedure for operating the switch is as follows: 1. Push the control panel cover at the portion where PUSH is marked, open the control panel cover, then operate the UNIT EMERGENCY POWER OFF switch. 2.
Figure 10.
Normal Operations The disk array does not require intervention from the user. The disk array reports any remote error messages (R-SIMs) to your remote console PC and also sends the report to the HP Service Center automatically. The RC software allows the HP Service Representative to view the R-SIMs by date and time or by controller and to manage the R-SIM log file on the remote console PC. For more information on SIMs, see “Troubleshooting” (page 77).
Powering Off the Disk Array Situations may arise in the operation of the disk array that require the user to power off the disk array. These situations include: • UNIT EMERGENCY POWER OFF • Planned power-off UNIT EMERGENCY POWER OFF An emergency is a critical situation such as a physical plant catastrophe such as a flood, hurricane, tornado, or a threat of injury or death to a person. In an emergency, the critical need is to quickly remove power from the disk array. A quick restart is not necessary.
Planned Power-Off There may be times when a site power outage is planned. These situations would include alterations to the data center, inspections, or work by the electric company. If a scheduled power outage affects an HP SureStore E Disk Array XP48, the power off of the disk array must be scheduled with a trained HP support representative. Caution Only a trained HP representative can shut down and power off a disk array. Shutting down and powering off a disk array is not a customer activity.
Recovering from a Power Outage to the Disk Array A power outage to the array is when the primary building power is lost due to electrical blackouts, thunderstorm activity, etc., and input AC power is not received by the array. The disk array will maintain its state and recover when power is restored. The array cache is backed up by batteries that will maintain its state for a minimum of 48 hours. This length of time will provide coverage for most outages.
Caution Powering on the disk array may take upwards of 10 minutes, depending on the number of disks installed in your disk array. Power-on is complete only when the READY LED turns green. 4. Move the REMOTE/LOCAL switch on the front panel (14, figure 9 (page 51)) to the REMOTE position.
Specifications Some of the XP48 disk array specifications are listed in this section. Refer to the HP SureStore E Disk Array 48 Site Prep Guide in the XP48 www.hp.com/support/xp48 for a complete set of XP48 specifications. Temperature Table 11. Temperature Specification Temperature Specification (Degrees F = 1.
Mechanical Vibration Maximum operating acceleration 0.05G at a frequency range of 10 to 300 Hz AC Line Voltage The following tables detail the AC line voltage. Table 13. 1-Phase 60 Hz Operation Specification 60 Hz-V1 60 Hz-V2s 60 Hz-V3 Nominal rated voltage(vac) 200 208 230 Minimum operating voltage (vac) 184 191 212 Maximum operating voltage (vac) 212 220 244 Rated line current (arms) 8.8 8.5 7.8 Dropout carry-through time at minimum line voltage (ms) 500 500 500 Table 14.
Website For the most current information on the XP48, please visit the XP48 website at www.hp.com/support/xp48.
4 THE HP SURESTORE E DISK ARRAY XP FAMILY OF OPTIONAL SOFTWARE There are several optional software packages available from HP designed to increase your data accessibility and enable continuous user data access to your disk array. This chapter describes how these optional software applications help you to run your disk array system. Before installing the optional software packages, refer to the specific software manual to verify equipment requirements.
Web-Based Console This section lists the advantages of creating a web-based console using the HP SureStore E Command View. HP SureStore E Command View XP The SureStore E Command View XP provides you with the next generation of management and the ability to manage multiple disk arrays.
Security The following section explains how to use the Secure Manager to establish security on your disk array. HP SureStore E Secure Manager XP Secure Manager establishes security at the LUN level, allowing you to enable multiple server connectivity to the disk array. Secure Manager XP works through the native Fibre Channel, enabling the disk array to hide LUNs assigned to one server from other servers during IOSCAN operations.
Core Solutions There are three applications that provide core solutions: Cache LUN, LUN Configuration Manager, and Remote Control. HP SureStore E Cache LUN XP Using Cache LUN for storage in cache increases access time to data. HP SureStore E LUN Configuration Manager XP The LUN Configuration Manager allows you to create, define, and configure LUNs on your disk array. LUN Configuration Manager comes with three applications that are executed on the SureStore E Command View console or your remote control PC.
Figure 11.
Disaster Recovery Disaster recovery applications include Continuous Access XP and Continuous Access Extension XP. HP SureStore E Continuous Access XP Continuous Access XP allows you to implement a disaster recovery plan by providing a link between the failover controller/arbitrator and your disk array to initiate, monitor, and report its status to the host.
High Availability High availability is enabled by using the optional Business Copy XP software. HP SureStore E Business Copy XP Business Copy XP allows you to enable multiple mirroring capabilities to create a total of 10 images, including the original. Use Business Copy for nonproduction activities such as backup, batching, and system testing.
Failover and Load Balancing Enhance failover and load balancing with Auto LUN XP, Auto Path XP, and Performance Manager XP. HP SureStore E Auto LUN XP Auto LUN XP provides monitoring and disk usage analysis for your disk array based on user thresholds. Auto LUN develops a plan to migrate impacted data volumes to lower usage LUNs, using the data acquired during the monitoring function. You can perform the migration manually or automatically, or you can set it to complete with the approval of the user.
Performance Monitoring Monitor the performance of your disk array with Performance Manager XP and Performance Advisor XP. HP SureStore E Performance Manager XP Performance Manager XP provides performance monitoring for your disk array and allows you to adjust disk array performance. The Performance Manager enables you or your service consultant to examine your system’s workload and to perform reallocation of cache read and write ratios according to user needs.
Network Management Network management is established using the SureStore E OpenView/ITO SPI software. HP SureStore E OpenView/ITO SPI SureStore E OpenView/ITO SPI establishes an agent that resides on your remote control PC agent, monitors the disk array, provides a correlation of events on the disk array, and then forwards those events to the OpenView/ITO management console.
Mainframe Solutions Use the Resource Manager and Data Exchange software applications to meet your mainframe requirements. HP SureStore E Resource Manager XP The Resource Manager allows you to share data stored on the disk array with mainframe systems as well as open system servers. This reduces and optimizes your storage maintenance and management overhead.
HP SureStore E Disk Array XP512/XP48: Owner’s Guide
5 TROUBLESHOOTING This chapter explains the monitoring and reporting capabilities and the flow of troubleshooting used on the HP SureStore E XP Family of disk arrays.
Monitoring and Reporting Your disk array generates service information messages (SIMs) to identify normal operations, service requirements, and failures. SIMs can be generated on your disk array by the CHIP (Client Host Interface Processor) and ACP (array control processor) microprocessors and by the internal service processor (SVP). Your HP Service Representative will use the SIMs to monitor and troubleshoot your disk array.
Troubleshooting Flow Diagram When your system encounters trouble, it will report the trouble to the remote PC and to the HP Stress Free Central Support Center. If a failure occurs in your disk array, it is detected and reported to the system log, the SIM log, and the HP Technical Support Center. Figure 12 (page 80) is a flow diagram that explains the progress of error detection and reporting. 1. A failure is detected in your disk array. 2. The failure is reported to the system.
4. The Continuous Track remote maintenance tool reports the SIMs to the HP Stress Free Central Support Center through a dedicated dial-up connection. The HP Stress Free Central Support Center then takes action to correct the failure. 4 Stress Free Central 1 2 Failure 3 SSB SIM SSB Log SIM Log SSB SIM RC Figure 12.
6 REGULATORY STATEMENTS The following regulatory statements relate to both the HP SureStore E XP512 and the HP SureStore E XP48 disk arrays, unless otherwise noted.
FCC EMC Statement (USA) This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
IEC Statement (Worldwide) This is a Class A product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures.
EMC Statement (Canada) This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la Classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
Spécification ATI Classe A (France) DECLARATION D'INSTALLATION ET DE MISE EN EXPLOITATION d'un matériel de traitement de l'information (ATI), classé A en fonction des niveaux de perturbations radioélectriques émis, définis dans la norme européenne EN 55022 concernant la Compatibilité Electromagnétique.
VCCI EMC Statement (Japan) 86 HP SureStore E Disk Array XP512/XP48: Owner’s Guide
BSMI EMC License Number and Statement (Taiwan) XP512 XP48 Regulatory Statements 87
Harmonics Conformance (Japan) 88 HP SureStore E Disk Array XP512/XP48: Owner’s Guide
German Noise Declaration XP512: Schalldruckpegel Lp = 62 dB(A) XP48: Schalldruckpegel Lp = 59 dB(A) Am Arbeitsplatz (operator position) Normaler Betrieb (normal operation) Nach ISO 7779:1988 / EN 27779:1991 (Typprüfung) Regulatory Statements 89
Laser Safety When equipped with native Fibre Channel adapters, this product contains a laser internal to the optical link module (OLM) contained on the 4-port Fibre Channel Adapter board and on the 8-port Fibre Channel Adapter board for connection to a fibre communications network. In the USA, the OLM is certified as a Class 1 laser product conforming to the requirements contained in the Department of Health and Human Services (DHHS) regulation 21 CFR, Subchapter J.
Declaration of Conformity The following declarations pertain to the XP512 and the XP48, respectively.
XP512 Declaration of Conformity DECLARATION OF CONFORMITY according to ISO/IEC Guide 22 and EN 45014 Manufacturer's Name: Hewlett-Packard Company Manufacturer's Address: 8000 Foothills Blvd.
XP48 Declaration of Conformity DECLARATION OF CONFORMITY according to ISO/IEC Guide 22 and EN 45014 Manufacturer's Name: Hewlett-Packard Company Manufacturer's Address: 8000 Foothills Blvd.
HP SureStore E Disk Array XP512/XP48: Owner’s Guide
A RAID TECHNOLOGY RAID technology is used by your HP SureStore E Disk Array to utilize your disk space efficiently and to keep your data safe in case a problem occurs with one of your disk drives. RAID technology combines low cost and high performance, while providing you with high reliability. RAID technology separates your data and your disk drives into disk arrays and disk volumes. These divisions are used to safeguard data and to make the most efficient use of your disk drive space.
Using RAID0/1 RAID0/1 uses both RAID0 and RAID1 technologies implemented together to achieve high reliability and high I/O performance on your disk array. RAID0 produces a striped drive volume. Striped data means that the stream of data from the host is split and distributed onto two or more of your disk devices on a byte or bit basis. RAID0 produces a very high-performance I/O disk subsystem, where fault tolerance is not required. RAID1 is a disk-mirroring algorithm that requires at least two disk drives.
2D + 2D Array Group Data Mirror Data Mirror Mirror Data Mirror Data LUN0 LUN1. . . LUNn RAID0/1 is a striped and mirrored copy within an ACP pair Figure 13.
Understanding RAID3 RAID3 is not supported on your XP disk array, but it is a preface to understanding RAID5, which is supported. RAID3 allows data to be split and distributed on two or more disk drives using striping. Because two or more disk drives are recording the data simultaneously, the transfer speed is faster. The multiple disk drives that are used to store the data are called a parity group. See figure 14 (page 98). RAID3 stores parity information on a separate drive (called a parity drive).
Using RAID5 RAID5, like RAID3, processes data between two or more disk drives simultaneously. RAID5 also saves parity information to a separate disk drive. RAID5, unlike RAID3, saves information as blocks of data, which allows the RAID controller to access each disk for only one stripe of data. This also allows RAID5 to perform input/output operations on other disks in parallel. By saving the data as small blocks, this approach permits increased I/O performance.
RAID5 requires four disks for an array group. RAID5 on the XP512 allows the data to be split and distributed onto three disk drives using striping. Parity data for the group is created and stored on the parity disk as in figure 16 (page 101). Data can easily be recovered if a device in the parity group becomes inoperative or causes a read error. In RAID5, the striping size is set to that of blocks that are to be transferred.
3D + 1P Array Group D1 D5 D9 P (10-12) D2 D6 P (7-9) D10 D3 P (4-6) D7 D11 P (1-3) D4 D8 D12 Figure 16. RAID5 with Parity Disk The downside to RAID0/1 over RAID5 is that there is a 100% overhead on storage redundancy associated with RAID0/1. RAID0/1 is often referred to as mirrored storage, because the user data is physically duplicated in the array.
You will get more overall usable storage out of the array with a RAID5 implementation. RAID5 achieves the storage redundancy by generating parity data based on the data stored. RAID5 only requires a 33% storage overhead. Table 15.
Configuring Dynamic Spare Disks You can configure the disk array with a minimum of 1 and a maximum of 16 spare disk drives. For both RAID0/1 and RAID5 array groups, any dynamic spare drive can back up any other disk drive of the same capacity, anywhere in the disk array, even if the failed disk and the spare disk are on different array control processor (ACP) pairs. The RAID system uses diagnostics and disk-scrubbing algorithms to detect and correct drive errors.
HOST HOST D2 D2 D1 D3 P(1-3) DKC (RAID5) DKC RAID 0/1 D2 D1 D5 D9 P(10-12) D2 D6 P(7-9) D10 D3 P(4-6) D7 D11 P(1-3) D4 D8 D12 D1 M2 D5 M6 M1 D2 M5 D6 D3 M4 D7 M8 M3 D4 M7 D8 Disk 1 Disk 2 Disk 3 Disk 4 Disk 1 Disk 2 Disk 3 Disk 4 Figure 18. Data Reconstruction After Drive Error There are two data integrity features built into the XP512: dynamic sparing and correction copy.
Ready to accept I/O requests DKC Disk 1 Disk 2 Disk 3 Disk 4 Ready to accept I/O requests Ready to accept I/O requests DKC (RAID 0/1) DKC (RAID5) Disk 1 Disk 2 Spare disk Disk 3 RAID 5 Disk 4 Spare disk Disk 1 Disk 2 Disk 3 RAID 0/1 Disk 4 Spare disk Figure 19. Dynamic Sparing and Correction Dynamic sparing is a method of removing a drive from service if its read/write errors exceed a certain threshold value.
HP SureStore E Disk Array XP512/XP48: Owner’s Guide
GLOSSARY ACP array control processor ADP (ADaPter) Hardware that connects the LCM to the CHA physically and logically. The ADP contains 256 MB of internal buffer. AL arbitrated loop AP application program BC XP SureStore E Business Copy XP software BS basic supply BSA (BUS Adapter) Hardware that connects the PCBs, FBUS, and MBUS.
CHA (CHannel Adapter) Provides the channel interface control functions and intercache data transfer functions. It is used to convert the data format between CKD and FBA. The CHA contains an internal processor and 128 bytes of edit buffer memory. CHA (Prog.) A channel command control layer that processes channel commands and controls cache and data transfer operations. It is located in the CHA. CHA Prog. is recognized by the logical volume number and logical block number.
DCR dynamic cache residency (also called Cache LUN XP) DE Data Exchange software DFDSS Data Facility Dataset Services DFSMS Data Facility System Managed Storage DFW DASD fast write Disruptive Status that there is no I/O from the host (off-line). DKA (DisK Adapter) Provides the control functions for data transfer between drives and cache. The DKA contains DRR (Data Recover and Reconstruct), a parity generator circuit. It supports four SCSI buses and offers 64 KB of buffer for each SCSI bus.
EPO emergency power-off EREP error reporting ESA Enterprise Systems Architecture ESCON Enterprise System Connection (IBM trademark for optical channels) ExSA Extended Serial Adapter FAL File Access Library (part of the Data Exchange software) FC Fibre Channel FC-AL Fibre Channel arbitrated loop FCC Federal Communications Commission FCU File Conversion Utility (part of the Data Exchange software) FDR fast dump/restore ft foot/feet F/M format/message FBA fixed-block architecture FW
HCD hardware configuration definition HOT Status that the battery is on. HP Hewlett-Packard Company H/W hardware Hz Hertz ICKDSF A DSF command used to perform media maintenance IDCAMS access method services (a component of Data Facility Product) IML initial microprogram load in.
LCP link control processor, local control port LD logical device LDEV logical device LED light emitting diode LIVE INS Short for Live Insertion, it is the signal cable for detecting hot-plugging. LM (local memory) Each microprocessor has LM.
ms, msec milliseconds MVS Multiple Virtual Storage (including MVS/370, MVS/ESA, MVS/XA) nondisruptive Status that there are some I/Os from the host (online).
RISC reduced instruction set computer R-SIM remote service information message R/W read/write S/390 IBM System/390 architecture SAM system administration manager SBC (Sub BUS) A data bus in the DKA. SCA (SCSI Adapter) Controls SCSI packets. SCSI small computer system interface sec second seq. sequential Shared memory Stores the shared information about the subsystem and the cache control information (director names).
TB terabyte TID target ID TPF Transaction Processing Facility TSO Time Sharing Option (an IBM System/370 operating system option) UCB unit control block UL Underwriters’ Laboratories VDE Verband Deutscher Elektrotechniker VM Virtual Machine (an IBM S/390 system control program) VOLID volume ID volser volume serial number VSC Volume Size Configurator (also called CVS: Custom Volume Size) VSE Virtual Storage Extension (an IBM S/390 operating system) VTOC volume table of contents XA
HP SureStore E Disk Array XP512/XP48: Owner’s Guide
INDEX C connectivity XP48 ESCON connectivity 13 XP48 Fibre Channel connectivity 12 XP48 LUNs 12 XP512 ESCON connectivity 13 XP512 Fibre Channel connectivity 12 XP512 LUNs 12 core solutions Cache LUN XP 68 LUN Configuration Manager XP 68 Remote Control XP 68 D data integrity hardware features 14 software and solution integration 15 software features/products 14 support 14 disaster recovery Continuous Access Extension XP 70 Continuous Access XP 70 disk array XP512 available disk drives 26 disk array feature
E environmental specifications humidity 62 mechanical vibration 63 temperature 62 XP48 AC line voltage 43 XP512 AC line voltage 63 XP512 humidity 42 XP512 temperature 42 F failover & load balancing Auto Path XP 72 failover and load balancing Auto LUN XP 72 Performance Manager XP 73 118 H hardware disk array frames 26 disk control frame 50 major hardware components 49 normal operations 57 physical components 22 RAID options 26 UNIT EMERGENCY POWER OFF 35 UNIT EMERGENCY POWER OFF procedure 55 XP48 available
HP SureStore E Disk Array XP512 and XP48 advantages 9 connectivity 12 continuous data availability 10 data integrity 14 nondisruptive service and upgrades 11 software features/products 14 M mainframe solutions Data Exchange XP 75 Resource Manager XP 75 major hardware components disk array features 23 XP48 disk control frame 48 XP48 remote console 49 XP48 service processor 48 XP512 disk control frame 23 XP512 remote console 23 XP512 service processor 23 monitoring and reporting array control processor 78 cli
P physical components disk array frames 26 disk control frame 24 major hardware components 49 normal operations 57 XP48 control panel 51 XP48 disk control frame 50 XP48 UNIT EMERGENCY POWER OFF 55 XP512 control panel 30 XP512 disk control frame 24 XP512 major hardware components 23 XP512 normal operations 37 XP512 UNIT EMERGENCY POWER OFF 35 power-off emergency 38 XP48 normal 59 XP512 normal 39 R RAID technology RAID options 26 RAID usage and overhead (table) 102 RAID0/1 96 RAID3 98 RAID5 99 120 regulat
specifications humidity 62 mechanical vibration 63 temperature 62 XP48 AC line voltage 63 XP48 environmental specifications 62 XP48 humidity 42 XP48 temperature 42 XP512 AC line voltage 43 XP512 environmental specifications 42 T troubleshooting flow diagram 79 monitoring and reporting 78 service information messages 79 SIM classification 79 U UNIT EMERGENCY POWER OFF procedure 38 UNIT EMERGENCY POWER OFF XP48 procedure 58 W warnings XP48 high voltage power 47 XP512 high voltage power 21 web-based console H
XP512 disk array BSMI EMC 87 control panel 24, 30 disk control frame 24 harzard warnings 20 major hardware components 23 normal operations 37 normal power-off 39 normal power-on 40 physical components 22 remote console 27 safety precautions 20 service processor 25 specifications 42 UNIT EMERGENCY POWER OFF 35 UNIT EMERGENCY POWER OFF procedure 38 XP512 disk array frames 23 XP512 disk control frame control panel 24 XP512 normal power-off 39 XP512 normal power-on 40 XP512 power-on 40 XP512 UNIT EMERGENCY POWE
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