eXtremeRAID 3000 Installation Guide DB11-000033-00 First Edition 08P5525
Electromagnetic Compatibility Notices This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference, and 2. This device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
Interference-Causing Equipment Regulations. Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada. This is a Class B product based on the standard of the Voluntary Control Council for Interference from Information Technology Equipment (VCCI). If this is used near a radio or television receiver in a domestic environment, it may cause radio interference. Install and use the equipment according to the instruction manual.
Declaration of Conformity Per FCC Part 2, Section 2.1077(a) Manufacturer’s Name: LSI Logic Corporation Manufacturer’s Address: North American Headquarters Milpitas, CA USA Declares that the product: Product Name: High Performance RAID Controller Model Number(s): eXtremeRAID 3000 Year of Manufacture: 2000 Conforms to the following Product Specification(s): FCC: CFR 47 Part 15, Subpart B, Section 15.107(e) and Section 15.109(g) Class B Digital Device tested per ANSI C63.
Declaration of Conformity Per 89\336\EEC Responsible Party Name: LSI Logic Corporation Address: North American Headquarters Milpitas, CA U.S.A. hereby declares that the product Trade Name: High Performance Caching RAID Controller Model Number(s): eXtremeRAID-3E Fab. 550137-A Rev.
Community of Europe CE mark is rated for the eXtremeRAID 3000 as follows: CISPR 22 Radiated Emission EN55022, Generic immunity standard for the following: IEC 801-2 ESD, IEC 801-3 Radiated, and IEC 801-4 EFT/Burst Warning! This is a Class B product. In a residential environment this product may cause radio interference, in which case the user may be required to take adequate measures. Achtung! Dieses ist ein Gerät der Funkstörgrenzwertklasse B.
Underwriters Laboratories Statement and Warning
Proprietary Rights Notice This document contains proprietary information of LSI Logic Corporation. The information contained herein is not to be used by or disclosed to third parties without the express written permission of an officer of LSI Logic Corporation. Any product(s) described herein is/are a licensed product of LSI Logic Corporation. Document Description Document DB11-000033-00 First Edition.
Trademark Acknowledgments LSI Logic, the LSI Logic logo, MORE, Mylex, and SANmapping are trademarks or registered trademarks of LSI Logic Corporation. All other brand and product names may be trademarks of their respective companies.
About This Manual This installation guide covers hardware set-up and configuration procedures necessary for the installation of a Mylex eXtremeRAID 3000 Fibre Channel RAID controller. Chapter 1 describes the controller, standard package contents, and usersupplied items necessary for installation. Chapter 2 describes the steps to be performed prior to controller installation and the physical installation of the eXtremeRAID 3000 Fibre Channel RAID controller.
Conventions Throughout the manual, the following conventions are used to describe user interaction with the product: prompt This style of type indicates screen display messages Enter Press the key labeled “Enter” (or “Delete”, etc.
Contents Chapter 1 Introduction Product Description ........................................................................... 1-1 Controller Features .................................................................... 1-2 Channel Capabilities .................................................................. 1-3 Controller Capabilities ................................................................ 1-3 Operating System Support .........................................................
Operating System Device Drivers ...................................................... 3-5 Global Array Manager (GAM) Server ................................................ 3-5 Global Array Manager (GAM) Client .................................................. 3-6 In Case of Problems .......................................................................... 3-6 Appendix A Memory Module and Battery Backup Unit Product Description ...........................................................................
Appendix D PCI Hot Plug Introduction ........................................................................................D-1 Implementation ..................................................................................D-1 NetWare .....................................................................................D-1 Windows NT ...............................................................................D-3 Windows 2000 ............................................................................
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Chapter 1 Introduction This chapter describes: • The eXtremeRAID™ 3000 controller • Standard package contents • User supplied items Figure 1-1. eXtremeRAID 3000 Controller Product Description The Mylex eXtremeRAID 3000 controller is a PCI to Fibre Channel RAID controller with 64-bit, 33MHz PCI capability. The eXtremeRAID 3000 supports either one or two external Fibre channel loops at 100 MB/sec per loop, plus one internal Ultra2 SCSI connector and a cache memory battery backup.
Product Description Controller Features Features of the eXtremeRAID 3000 controller include: • Two Q-Logic ISP 2100A chips to support two Fibre loop channels at 100MB/s each • One Q-Logic ISP 1080 chip to support one Ultra2 SCSI channel at 80MB/s • StrongArm SA110 at 233MHz RISC processor • BDIMM memory module with 32MB, 64MB, 128MB ECC SDRAM with a Battery Backup Module (BBM) • PCI 2.1 and 2.2 compliant (PCI 2.
Introduction Channel Capabilities • 126 physical devices per Fibre loop channel • 15 physical devices per SCSI channel Controller Capabilities • 16 physical devices per drive group (array) • 60 total drive groups • 256 total physical devices • 32 total logical drives • Supports RAID levels 0, 1, 3, 5, 0+1, 10, 30, 50, and JBOD Operating System Support MS-DOS 6.x, and above are supported using drivers that reside in the eXtremeRAID BIOS.
Standard Package Contents Standard Package Contents The following items are supplied with the standard shipping package: Hardware • eXtremeRAID 3000 Disk Array Controller with documentation included on the CD-ROM and a printed Quick Installation Guide • BDIMM Memory Module (32MB, 64MB, 128MB) with an optional pre-installed battery backup Software • RAID EzAssist disk array controller configuration utility with documentation on CD-ROM and a printed Quick Configuration Guide • Software Kit Driver with docu
Introduction User-supplied Items The following user-supplied items are required to perform this installation: SCSI • IBM-PC™ compatible host system with PCI slot (PCI 2.1 or PCI 2.2 compliant; you must be PCI 2.
User-supplied Items 1-6 eXtremeRAID 3000 Installation Guide
Chapter 2 Installation This chapter describes: • Before you begin • Safety Considerations • Installation Checklist • Connectors, Jumpers, LED’s • Installation steps • SCSI drive termination • SCSI cabling, internal ribbon cable only • SCSI drive preparation • Limitations on mixing various SCSI drive types • Fibre drives, no termination • Fibre cabling • Fibre drive preparation Mylex disk array controllers are designed to work in a variety of SCSI and Fibre RAID application environments.
Before You Begin Before You Begin Installing the eXtremeRAID 3000 Fibre Channel RAID controller is no more difficult than installing any 32 bit or 64 bit PCI controller. The eXtremeRAID 3000 controller, with two Fibre channels and one internal SCSI channel, connects into any PCI slot on the motherboard. Follow these steps and the installation procedures in this chapter. WARNING Working with the system covers off and power applied to the system can result in shock and serious injury.
Installation Safety Considerations Be sure to observe the following precautions before beginning the controller installation procedure: Caution Anti-static handling procedures are required. Leave the controller in its anti-static bag until it is time to plug the controller into the PCI slot. The use of a grounded wrist strap and other ESD protective measures are highly recommended. WARNING Disconnect the system from the electrical wall outlet before opening the system cabinet.
Installation Checklist Installation Checklist GET READY ☛ Note It is recommended that you wear a grounded wrist strap when working with hardware installation procedures. 1. ____ Decide which available PCI slot will be used. 2. ____ Remove the plate from the I/O access port to the PCI slot. 3. ____ Remove the eXtremeRAID 3000 controller from the anti-static bag. GET SET 4. ____ Plug the eXtremeRAID 3000 controller into a standard PCI slot. 5.
Installation 13. ____ Safety check the installation. ☛ Note Review Figure 2-1, Figure 2-2, Figure 2-3 and Table 2-1 to get familiar with the layout of the eXtremeRAID 3000 controller and the Connectors, Jumpers, and LED descriptions. GO 14. ____ Go to Chapter 3, Controller Start-up. Manual No.
Connectors, Jumpers and LEDs Connectors, Jumpers and LEDs There are two Fibre Loop connectors and one internal Ultra2 SCSI channel connector supported on the controller as shown in Figure 2-1. SCSI jumpers should normally be set to their default settings and no adjustments are needed. Default jumper locations are shown in Figure 2-2. Jumper descriptions are described in Table 2-1. The controller has eight LEDs that are active indicators while the controller is running.
Installation SCSI CH 0 Fibre Loop CH l Fibre Loop CH 2 Figure 2-1. eXtremeRAID 3000 Controller with Connectors JP2 JP3 JP4 JP6 Figure 2-2. eXtremeRAID 3000 Controller with Jumpers (front side) Table 2-1. Jumper Descriptions Jumper Description Default Settilng JP2 pins 1-2 for ARM Proc, pins 2-3 for I2O 1-2 JP3 Manufacturing off JP4 pins 1-2 normal, pins 2-3 blank ROM mode 1-2 JP6 Manufacturing off Manual No.
Connectors, Jumpers and LEDs 1- SCSI Activity 3- Fibre Activity 2- Single Ended Mode 4- LVD Mode 5- Host Activity 7- Diagnostic LED 6- Cache Activity 8- Fibre Ch 1 Activity Figure 2-3.
Installation Follow these installation steps: 1. Choose any available 32 bit or 64 bit PCI slot as shown in Figure 2-4. 32 bit PCI slots 64 bit PCI slots Figure 2-4. Choose an Available PCI Slot 2. Remove the metal cover plate from the slot’s access port (usually at the back of the cabinet) by releasing the black clip as illustrated below shown in Figure 2-5. Figure 2-5. Remove the Metal Plate Manual No.
Connectors, Jumpers and LEDs 3. Remove the eXtremeRAID 3000 controller from the anti-static bag as shown in Figure 2-6. Always handle the controller by the edges and wear a ground wrist strap. Ground Wrist Strap Figure 2-6. Remove the controller from the Anti-static Bag 4. Plug (install) the controller firmly into the any 32 bit or 64 bit PCI slot and wear a ground wrist strap as shown in Figure 2-7. Notice that the black handle must fit into the side slot for a proper fit. Black Handle Figure 2-7.
Installation 5. Connect the SCSI cables from the internal disk drives to the SCSI connector on the eXtremeRAID 3000 controller, as shown in Figure 2-8. (The controller is already connected to the system board.) If necessary, refer to Table 2-2 on page 13 for SCSI formats and bus lengths. Figure 2-8. eXtremeRAID 3000 SCSI Termination Example ☛ Note In order to ensure an error free environment, the proper cable type designed for a certain SCSI speed must be used.
Connectors, Jumpers and LEDs SCSI Termination Each end of a SCSI bus must be terminated to maintain proper voltage levels for SCSI control and data signals. The device used for this purpose is called a terminator, and it can be built into a controller, a SCSI peripheral device, or it can be a plug placed on the connector at the very end of a SCSI bus. The eXtremeRAID 3000 controller is equipped with SCSI termination control circuitry.
Installation SCSI Cabling The controller supports one internal Ultra2 SCSI channel which can support up to 15 SCSI devices. LVD Mode The controller supports Ultra2 SCSI with LVD. If all drives attached to a controller drive channel support Ultra2 SCSI with LVD, then that channel will operate at 80MB. This setup allows a maximum SCSI bus length of up to 12 meters.
Connectors, Jumpers and LEDs SCSI Drive Preparation To prepare the drives for installation, follow these steps: 1. Remove any terminators attached to the drive or set any drive termination jumpers to the disabled position. 2. Set the SCSI IDs on the drives. 3. Enable term power on the drives. Refer to the drive manual for specific information about drive configuration settings. Do Not Mix Narrow and Wide SCSI Drives ☛ Note There is only one internal SCSI channel available to connect SCSI devices.
Installation Figure 2-9. Fibre External Drive Configuration Fibre Cabling The eXtremeRAID 3000 controller supports two Fibre loops; each Fibre loop supports up to 126 devices. When connecting Fibre devices, you are allowed a maximum cable length of 20 meters per hop. A hop is the distance between any two devices. Manual No.
Connectors, Jumpers and LEDs Fibre Connectors, External The external Fibre connectors are on the controller’s High Speed Serial Data Connectors (HSSDC), as shown in Figure 2-10. Figure 2-10. eXtremeRAID 3000 Controller External Connectors The cables should have the HSSDC at one end to be attached to the controller and either HSSDC or DB9 connector on the other end, depending on the external Fibre devices. An illustration of an HSSDC is shown in Figure 2-11. Figure 2-11.
Installation Fibre Drive Preparation To prepare the drives for installation, follow these steps: 1. Set up your Fibre Channel Cabinet according to the manufacturer’s instructions. ☛ Note Use only Fibre disk drives in your Fibre Channel Cabinet. 2. Refer to the Fibre drive manual for specific information about drive configuration settings. 3. Place the Fibre drives into your Fibre Channel Cabinet. 4. The Fibre Channel Cabinet usually handles Fibre ID addresses automatically. Manual No.
Connectors, Jumpers and LEDs 2-18 eXtremeRAID 3000 Installation Guide
Chapter 3 Controller Start-up This chapter describes: • BIOS Options • BIOS Configuration Utility (RAID EzAssist) • Operating System, Device Drivers, GAM • What to Check in Case of Problems This chapter describes the eXtremeRAID 3000 RAID controller start-up procedures and messages produced by the BIOS during start-up or re-boot. This chapter also explains three BIOS options that are available for configuring controller operation.
BIOS Options and the Drive geometry parameters.
Controller Start-up Setting BIOS Options The available BIOS options are: • BIOS disabled/enabled • CD-ROM boot disabled/disabled • 2GB/8GB drive geometry BIOS Disable or Enable This option must be enabled in order to toggle the CD-ROM boot and the drive geometry parameters shown in the BIOS Options menu. The BIOS must also be enabled in order to boot from any device (e.g., CD-ROM) or system drive configured on the controller, or to access any DOS partition on any drive configured on the controller.
BIOS Options Enable 8GByte or 2GByte Drives This setting affects how the BIOS reads the disk drives for the boot partition. Drive geometries can be toggled between 8 GB and 2 GB. The default is 2 GB. When the drive geometry is changed, the drive should be formatted at the operating system level. Caution Changing this setting after data has been stored will make the data unreadable. If you have already configured your array and have stored data, you should not change this setting.
Controller Start-up ☛ Note In the event that the RAID controller needs to be replaced, the current drive geometry will be restored from the configuration on disk (COD). BIOS Configuration Utility (RAID EzAssist) RAID EzAssist is the on-board BIOS Configuration Utility used to build several types of RAID configurations. Refer to the RAID EzAssist Configuration Utility User Reference Guide or RAID EzAssist Configuration Utility Quick Configuration Guide.
Global Array Manager (GAM) Client Global Array Manager (GAM) Client The controller can be configured using Global Array Manager Client. GAM Client can also be used from the server or a system client to monitor status and verify data integrity of disks connected to the controller while the system and disks are running. For details on how to install and run GAM Client, refer to the Global Array Manager Client Software Installation Guide and User Manual.
Appendix A Memory Module and Battery Backup Unit Figure A-1. BDIMM Module Product Description The Battery Dual Inline Memory Module (BDIMM) is a cache memory module that maintains data integrity in the event of a power failure. The battery backup portion of this module monitors the write back cache on the eXtremeRAID 3000 controller and provides power to the cache if it contains data not yet written to the drives when power is lost.
BDIMM Operation BDIMM Operation This BDIMM consists of 32MB, 64MB, 128MB of ECC1 SDRAM cache memory, a lithium Ion battery, a charging circuit, and power monitoring circuitry. The controller is shipped with the BDIMM installed or with standard DIMM memory, without a Battery Backup Module (BBM). Set-up – Enabling the Write-Back Cache Maximum RAID performance is achieved when the cache is in write-back mode. The write-back cache is enabled by toggling the write-back/writethrough mode switch.
Memory Module and Battery Backup Unit Maintenance No maintenance is required. It is recommended that the BDIMM charge level be periodically checked using the Gas Gauge function in GAM (see the Global Array Manager Client Software Installation Guide and User Manual).
BDIMM Functional Description Status Indication Battery status can be checked, and the battery can be reconditioned, or charged using the Intelligent Battery Backup Unit dialog box in Global Array Manager Client. This is accessed by selecting the Intelligent BBU option the Administration menu. Please refer to the Global Array Manager Client Installation Guide and Users Manual. Battery and Charge Circuit On-board Battery The on-board battery is rated at 4.1 V with a capacity of 900 mAH.
Memory Module and Battery Backup Unit BDIMM Specifications On-board Battery Electrical Properties • One Lithium-Ion cell, 4.1 V @ 900mAH Physical Description • Nominal pack size (in inches): 1.55(L) x 1.55(W) x 0.
BDIMM Specifications A-6 eXtremeRAID 3000 Installation Guide
Appendix B eXtremeRAID 3000 Specifications General Hardware Specifications eXtremeRAID 3000 Controller eXtremeRAID 3000 CPU StrongARM™ SA110 32-bit microprocessor, 233MHz Code /Program Memory 32MB, parity protected Cache Memory 32MB, 64MB, 128MB, and 256MB SDRAM installed on a BDIMM module containing a battery with backup circuitry for power fail protection of data.
Environmental Specifications Environmental Specifications Controller eXtremeRAID 3000 Temperature Operating 0°C to +50°C (+32°F to +122°F) Storage -20°C to +70°C (-4°F to +158°F) Operating 10% to 90% relative humidity (non-condensing) Storage 10% to 90% relative humidity (non-condensing) Operating Up to 3,048m (10,000 ft ) Storage Up to 15,240m (50,000 ft) Length: 12.280 inches Width: 4.750 inches Humidity Altitude Form Factor Maximum. Component 0.
Appendix C eXtremeRAID 3000 Error Messages ☛ Note The firmware you are using may have these messages turned off. However, they are listed here for your reference. Start-up Error Messages The BIOS looks for any initialization message posted by the firmware during the start-up sequence. If a message is found, one of the following errors displays on screen and the installation process aborts.
Installation Abort During the initialization, if the firmware fails to respond to the BIOS inquiry within two minutes, the following message displays: EXR3000 not responding--no drives installed! The BIOS then inquires the firmware for its version number and other information, and prints out the following message: EXR3000 Firmware Version x.
eXtremeRAID 3000 Error Messages EzAssist Configuration Utility User Reference Guide or RAID EzAssist Configuration Utility Quick Configuration Guide. System Reboot or Power Down Status messages may also be available from LED indicators connected to the controller. The Cache Dirty indicator is especially important when preparing to power-down the system.
System Reboot or Power Down C-4 eXtremeRAID 3000 Installation Guide
Appendix D PCI Hot Plug Introduction PCI Hot Plug is a feature that allows a PCI card to be replaced while the host system is still running. The term “Hot Plug” is somewhat misleading; the PCI card cannot simply be pulled out of the host system while the card is operating without risk to the card, the system, and the data on the system. In order to replace a Hot Plug PCI card, a software command must be invoked to power off the card slot before the card can be removed.
Implementation • odineb.nlm –This is a module combining the Open Data-link interface and the Novell Event Bus (NEB). The NEB controls the device drivers through the Open Data-link. If the NetWare installation process determines that the server supports PCI Hot Plug and detects the appropriate driver, the installation process adds the following two LOAD commands to the autoexec.ncf file: • LOAD sys:\system\driver_name This command loads the bus driver (for Compaq, this is cpqsbd.nlm).
PCI Hot Plug Windows NT Windows NT requires additional software from the vendor who makes the system. Since this software is not a part of NT, the software needs to be installed after the operating system is loaded. Refer to your system or server vendor's PCI Hot Plug documentation. Caution GAM drivers can stop PCI Hot Plug Boards from unloading. If this problem occurs, stop GAM and unload the GAM drivers before attempting to unload the PCI Hot Plug controller.
Implementation Please refer to the Windows XP or .NET 32-bit documentation for instructions on how to use the PCI Hot Plug feature.
Appendix E Enclosure Management Introduction Mylex’s eXtremeRAID controllers support the industry standard enclosure management protocol SCSI Accessed Fault-Tolerant Enclosures (SAF-TE). This feature allows the host to monitor drive enclosures and detect certain faults or operating environment conditions. The host can make a decision to shut down the system or issue a warning based on the type of fault detected.
SAF-TE Fibre Channel Cabinet You will need to use a Fibre, High Speed Serial Data Connector (HSSDC), cable to connect a fibre drive to either one or both of the external Fibre connector(s) on the eXtremeRAID 3000 controller. Connect the other end of the Fibre cable, with a 9-Pin DSUB connector, to other devices or to an certified Fibre Channel Cabinet as required (for example, an SES external drive cabinet). Please see Figure 2-11 for an example of an HSSDC connector.
Glossary AcceleRAID™ The AcceleRAID family features high performance, cost effective Ultra SCSI/Ultra2 SCSI LVD and Ultra 160 SCSI to PCI RAID controllers and adapters for high-end desktops, workstations, and entry level and mid range servers. AcceleRAID controllers support PCI-based motherboards with embedded SCSI chips and systems that have a PCI expansion slot designated for add-in RAID controllers. The AcceleRAID family consists of the 150, 200, 250, 352, 160, 170, and 170LP controllers.
Automatic Rebuild Mylex controllers provide automatic rebuild capabilities in the event of a physical disk drive failure. The controller performs a rebuild operation automatically when a disk drive fails and both of the following conditions are true: A standby or hot spare disk drive of identical or larger size is found attached to the same controller; All system drives that are dependent on the failed disk drive are configured as a redundant array: RAID 1, RAID 3, RAID 5, or RAID 0+1.
Glossary Bus A set of conductors that connect the functional units in a computer and are the channels through which data is transferred. There are several types of bus channels, including serial, parallel, PCI, ISA, EISA, and MCA. See also I/O Bus. Cables The physical wires (copper or fibre optic) over which electrical signals are transmitted. Cables are used to connect peripherals (such as disk arrays) to computers and servers or to connect peripherals or components to each other.
SCSI bus on a disk array controller. Each disk array controller provides at least one channel. Conservative Cache An operating mode in which system drives configured with the write-back caching policy are treated as though they were configured for write-through operation and the cache is flushed. Consistency Check A process that verifies the integrity of redundant data.
Glossary Disk Array A collection of disks from one or more commonly accessible disk systems. Disk arrays, also known as RAID, allow disk drives to be used together to improve fault tolerance, performance, or both. Disk arrays are commonly used on servers and are becoming more popular on desktops and workstations. See also Array. Disk Drive A device for the electronic digital storage of information. Disk System A storage system capable of supporting only disks.
ECC Error Correcting Code, a method of generating redundant information which can be used to detect and correct errors in stored or transmitted data. EDO Extended Data Output, a type of random access memory (RAM) chip designed to improve the time to read from memory on faster microprocessors such as the Intel® Pentium. EEPROM Electrically Erasable PROM, see EPROM.
Glossary Failback Restoring a failed system component’s share of a load to a replacement component. Failover A mode of operation for failure tolerant systems in which a component has failed and a redundant component has assumed its functions. Failover Port A fibre channel port capable of assuming I/O requests for another, failed port on the loop. During normal operation, a failover port may be active or inactive. Failover ports assume the same loop ID and, optionally, the same node from the failed port.
Gigabyte 230 (1,073,741,824) bytes. Abbreviated as G or GB. Global Array Manager (GAM) A Mylex RAID management utility that allows a system administrator to configure, monitor, and manage network RAID storage from anywhere in the world. GAM can communicate critical notification via e-mail, fax, pager, SNMP or the launching of an application. GAM is everything needed to manage Mylex PCI RAID Controllers, SCSI Host Adapters, and External RAID Controllers.
Glossary controller to “rebuild” the data on the new drive, all without interrupting system operations. Once the rebuild is complete, the controller will be brought back into a fault tolerant state. See also Hot Swap. Hot Spare A physical disk drive not part of a system drive that the controller can use to automatically rebuild a critical system drive. The hot spare drive must have at least as much capacity as the largest disk drive in the array or the rebuild may not start. See also Hot Standby.
I/O Input/Output, the transmission of information between an external source and the computer. I/O Bus Any path used for the transfer of data and control information between I/O adapters and storage controllers or storage devices. See also Bus. I2O Intelligent Input/Output, a driver that uses special I/O processes to eliminate I/O bottlenecks. The processes deal with interrupt handling, buffering, and data transfer.
Glossary Logical Drive States A logical (system) drive can be Online, Critical, or Offline. Notice that the term “online” is used for both physical and logical drives. LVD Low Voltage Differential, a form of SCSI signaling introduced with Ultra2 SCSI (Fast40 SCSI) uses data high and data low signal lines to increase transmission distances over those of single-ended (conventional SCSI signaling) lines. LVD allows for cable lengths of up to 12 meters (approximately 39 feet) with up to 15 devices.
Mirroring Refers to the complete duplication of data on one disk drive to another disk drive, this duplication occurs simultaneously with each write operation: each disk will be the mirror image of the other (also known as RAID Level 1, see RAID levels). All Mylex RAID controllers support mirroring. M.O.R.E. Mylex Online RAID Expansion, an advanced configuration mode that allows expansion of any unconfigured or hot spare drive into the expandable drive group while the controller is online with the host.
Glossary Offline A Logical Drive is in an “offline” state if no data can be read from it or written to it. Offline does not apply to physical disk drives. System commands issued to offline logical drives are returned with an error status; no operations can be performed on offline logical drives. See also Logical Drive States, Online, and Critical. Online A Logical Drive is in an “online” state if all of its participating SCSI drives have power and are operational.
Physical Device Any device connected to some kind of hardware. For example, SCSI disk, fibre disk, network disk, RAM disk, etc. Physical Disk Drive A single hard disk drive. Each physical disk drive is assigned a unique identification address. PROM Programmable Read-Only Memory, memory that users with appropriate instructions can reprogram. Protocol A special set of rules for transmitting data between two devices in a telecommunication connection.
Glossary RAID Levels Mylex disk array controllers support four RAID Advisory Board approved (RAID 0, RAID 1, RAID 3, and RAID 5), two special (RAID 0+1, and JBOD), and three spanned (RAID 10, 30, and 50) RAID levels. All DAC960, AcceleRAID, and eXtremeRAID series controllers support these RAID levels. Level 0: Provides block “striping” across multiple drives, yielding higher performance than is possible with individual drives. This level does not provide any redundancy.
RAID Migration A feature in RAID subsystems that allows for changing a RAID level to another level without powering down the system. RAM Random Access Memory, the "built-in" readable and writable data storage that comes with (or can be added to) a computer. RISC Reduced Instruction Set Computing, architecture for an application-specific processor. RJ-11, RJ-45 Registered Jacks (sometimes described as RJ-XX), a series of telephone connection interfaces (receptacle and plug) that are registered with the U.
Glossary enclosure itself is treated as simply another device on the SCSI bus. Many other leading server, storage, and RAID controller manufacturers worldwide have endorsed the SAF-TE specification. Products compliant with the SAF-TE specification will reduce the cost of managing storage enclosures, making it easier for a LAN administrator to obtain base-level fault-tolerant alert notification and status information. All Mylex RAID controllers feature SAF-TE.
Offline: A SCSI disk drive is in a “offline” state if it is not present, if it is present but not powered on, or if it failed to operate properly and was “offline” by the controller. When the controller detects a failure on a disk, it “kills” that disk by changing its state to “offline.” An “offline” SCSI drive can also be present and powered on, but a SCSI drive in a “offline” state does not participate in any I/O activity; no commands are issued to dead drives.
Glossary reported, conservative cache is enabled and all system drives are switched to write-through cache. Primarily used in fibre enclosures. SIMM Single In-line Memory Module, RAM packed on a small circuit board with a defined edge connector. Two SIMMs are required for a 64-bit memory path on a Pentium processor. See also DIMM. SISL See SCSI Interrupt Steering Logic (SISL).
To use the standby rebuild feature, you should always maintain a standby SCSI disk in your system. When a disk fails, the standby disk will automatically replace the failed drive and the data will be rebuilt. The system administrator can disconnect and remove the bad disk and replace it with a new disk. The administrator can then make this new disk a standby. The standby replacement table has a limit of 8 automatic replacements in any session (from power-on/reset to the next power-off/reset).
Glossary drive 1, block 2 on SCSI drive 2, block 3 on SCSI drive 3, block 4 on SCSI drive 1, block 5 on SCSI drive 2, and so on. This storage method increases the disk system throughput by ensuring a balanced load among all drives. Sustained Data Transfer Rate A rate of data transfer defined for continuous operation at a maximum speed level.
Ultra SCSI (Fast 20 SCSI) A high performance SCSI protocol that has a bus speed of 20 Megabytes per second in the Narrow SCSI configuration and 40 MB in the Wide SCSI (Fast 20 Wide SCSI) configuration. Ultra Wide SCSI 16-bit wide Ultra SCSI (IS devices), double the speed of narrow SCSI. Ultra2 SCSI (Fast 40 SCSI) A higher performance SCSI protocol than Ultra SCSI.
LSI LOGIC CORPORATION SOFTWARE LICENSE AND WARRANTY POLICY Limited Warranty LSI warrants to the original purchaser of the product enclosed herein (“Customer”) that (a) for a period of three (3) years from the date of Customer’s purchase of the Product (excluding batteries and memory) (the “Product Warranty Period”), and (b) for a period of one (1) year from the date of purchase of the Product by Customer (the “Battery/Memory Warranty Period”), the batteries and memory included in the Product will (i) be fre
with LSI’s instructions and the terms of this Agreement, shipping costs to be borne by LSI, and (c) Customer has provided proof of purchase price and date for unregistered Product. LSI shall bear one-way shipping, packing and insurance costs and all other costs, excluding labor and parts, necessary to effectuate repair or replacement under this warranty. All Product repaired or replaced under this warranty shall be returned to Customer at Customer’s expense.
is a part of the Product (“LSI Software”) solely as part of the Product incorporated into the OEM Products that and not on a standalone basis.
Manual No. DB11-000033-00 08P5525 LSI Logic Corporation North American Headquarters Milpitas, CA 408.433.
