Mylex DAC960PG Guide d'installation

PCI RAID ControllerInstallation GuideDAC960PGPCI to Ultra-SCSIP/N: 771971-D01

GlossaryGlossary-10 DAC960PG Installation GuideStripe WidthThe number of striped SCSI drives within a drive group.StripingRefers to the storing of a s

GlossaryManual No. 771971 Glossary-11Write Back CacheRefers to a caching strategy whereby write operations result in a completion signal being sent to

GlossaryGlossary-12 DAC960PG Installation Guide

Manual No. 771971 Index-1IndexAAborted Installation 4-9BBattery and Charge Circuit B-4Battery Backup Capacity B-8Battery Charger B-4Battery Conditioni

Index-2 DAC960PG Installation GuideInstallationChecklist 3-6DAC960PG 3-1IBBU B-5Notes 3-3Overview 3-1Requirements 3-1InterfacePCI Bus 2-3PCI bus 2-3Ul

Manual No. 771971 ixContentsChapter 1IntroductionProduct Description ... 1-1St

x DAC960PG Installation GuideChapter 3InstallationInstallation Overview ...3-1R

Manual No. 771971 xiAppendix AEnclosure ManagementIntroduction ...

xii DAC960PG Installation GuideHot Replacement of Disks (“Hot Swap”) ... 3IBBU ...

Manual No. 771971 1-1Chapter 1IntroductionProduct DescriptionFigure 1-1. DAC960PG Three-channel RAID ControllerThe DAC960PG is a 1, 2, or 3-channel, h

Product Description1-2 DAC960PG Installation Guide• Scatter/gather for additional command efficiency• Hot standby disk support— a drive is ready to ta

IntroductionManual No. 771971 1-3Figure 1-2. DAC960PG Controller Component Layout1, 2, or 3 connectors on the top edge of the DAC960PG provide the int

Standard Package Contents1-4 DAC960PG Installation GuideStandard Package Contents• DAC960PG PCI to Ultra-SCSI RAID controller with cache memory and In

IntroductionManual No. 771971 1-5Controller Functions and FeaturesKey FeaturesThe key features of the DAC960PG include:• Configuration on Disk (COD)•

Controller Functions and Features1-6 DAC960PG Installation GuideRAID/SCSI Disk Array Management• Supports multiple RAID levels (0, 1, 3, 5, and 0 + 1)

IntroductionManual No. 771971 1-7Enhance SCSI Performance• Fast/Wide Ultra-SCSI channels provide high-performance data transfers at up to 40 MB/second

DAC960PG Specifications1-8 DAC960PG Installation GuideDAC960PG SpecificationsControllerDAC960PGCPU Intel i960 RP® RISC 32-bit microprocessor, 33MHzMem

IntroductionManual No. 771971 1-9Specifications (continued)Electrical requirements5V ± 5% @ 3.5 Amp (Max. plus cable termination power)EnvironmentalTe

DAC960PG Specifications1-10 DAC960PG Installation Guide

Manual No. 771971 2-1Chapter 2Functional DescriptionOverviewFigure 2-1. System DiagramController ComponentsThe I960 RP ProcessorThe Intel 80960RP proc

Controller Components2-2 DAC960PG Installation GuideCache Memory SubsystemThe DAC960PG requires a minimum of 4 MB of on-board cache memory to operate

Functional DescriptionManual No. 771971 2-3The NVRAM stores data on the current configuration of the controller and its attached disk drives, and list

Controller Components2-4 DAC960PG Installation GuideUltra-SCSI Bus InterfaceThe three Ultra-SCSI channels can be simultaneously accessed by dedicated

Functional DescriptionManual No. 771971 2-5Separate Disk-stripe Size and Cache-line SizeFirmware 4.x supports the configuration of disk-stripe sizing

DAC960PGPCI to Ultra-SCSIRAID ControllerInstallation Guide Part Number 771971-D01 © Copyright 1997 Mylex Corporation.All Rights Reserved.All contents

SCSI Functions2-6 DAC960PG Installation GuideSCSI FunctionsThe DAC960PG manages and controls the SCSI bus arbitration between the controller and its c

Functional DescriptionManual No. 771971 2-7SCSI Address (Target ID) SelectionEach drive or device on a specific SCSI channel must be configured for a

Drive Organization2-8 DAC960PG Installation GuideDrive OrganizationThe DAC960PG controller organizes the SCSI drives connected to it as physical drive

Functional DescriptionManual No. 771971 2-9Configuration on DiskFigure 2-3. Configuration on Disk ExamplesFirmware 4.x provides Configuration on Disk

Drive Organization2-10 DAC960PG Installation GuideIf there is a mismatch, it means the device just read is an unidentified device. If a configuration

Functional DescriptionManual No. 771971 2-11Figure 2-4. Configuration on Disk Flowchart

RAID Management2-12 DAC960PG Installation GuideRAID ManagementRAID is an acronym for Redundant Array of Independent Disks. The DAC960PG controller imp

Functional DescriptionManual No. 771971 2-13RAID Techniques and TermsThe techniques of disk striping, mirroring, and parity (redundancy) are fundament

RAID Management2-14 DAC960PG Installation GuideStriping (RAID 0)Striping refers to the storing of a sequential block of incoming data across multiple

Functional DescriptionManual No. 771971 2-15Striping with Parity (RAID 3 and RAID 5)Striping with parity (rotated XOR redundancy) is a method of provi

NoticeThis Manual describes the Mylex DAC960PG. Although reasonable efforts have been made to assure the accuracy of the information contained herein,

RAID Management2-16 DAC960PG Installation GuideFigure 2-10. Block Striping with Parity (RAID 5 standard)

Functional DescriptionManual No. 771971 2-17Striping with Mirroring (RAID 0+1)RAID 0+1 (Mylex RAID 6) is a combination of RAID 0 (striping) and RAID 1

Drive Management2-18 DAC960PG Installation GuideDrive ManagementThe DAC960PG functions that monitor and control the operation of the physical drives a

Functional DescriptionManual No. 771971 2-19When the controller detects a failure on a disk, it kills that disk by changing its state to dead. A SCSI

Drive Management2-20 DAC960PG Installation GuideCriticalA logical unit is considered critical when any failure of another of its physical drives may r

Functional DescriptionManual No. 771971 2-21Using Standby RebuildTo use the automatic standby rebuild feature, it is necessary to always maintain a st

Drive Management2-22 DAC960PG Installation GuideWhen a disk reports a media error during a write, the controller issues a REASSIGN command to the disk

Functional DescriptionManual No. 771971 2-23Cache ManagementThe DAC960PG provides performance enhancement of data transfers through its on-board cache

Cache Management2-24 DAC960PG Installation Guide

Manual No. 771971 3-1Chapter 3InstallationInstallation OverviewThis chapter describes the installation of the DAC960PG PCI to Ultra-SCSI RAID controll

Class B ComplianceTHIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS:1. THIS DEVICE MAY NOT CAUS

Before You Begin . . .3-2 DAC960PG Installation GuideBefore You Begin . . .Installing the DAC960PG PCI to Ultra-SCSI RAID controller is no more diffic

InstallationManual No. 771971 3-3Installation Notes:DAC960PG PCI to Ultra-SCSI RAID Controller Setup:There are no jumper settings on the DAC960PG to b

Before You Begin . . .3-4 DAC960PG Installation GuideDrive Channel 1SCSIIDDevice Description TerminationEnabledDriveGroup0 ___________________ ______

InstallationManual No. 771971 3-5Drive Channel 2SCSIIDDevice Description TerminationEnabledDriveGroup0 ___________________ ________ ______1 __________

Before You Begin . . .3-6 DAC960PG Installation GuideDAC960PG Installation Checklist____ 1. POWER-OFF all enclosure and system components.____ 2 Prep

InstallationManual No. 771971 3-7Connectors and JumpersFigure 3-1. DAC960PG Component LocationsTable 3-1. Jumper Blocks and ConnectorsComponent Descri

Connectors and Jumpers3-8 DAC960PG Installation GuideExternal LED ConnectorFigure 3-2. Pinout of Connector J4Table 3-2. Status LED Indicators (from JP

InstallationManual No. 771971 3-9SCSI TerminationTerminating a SCSI chain is accomplished either by adding a terminator to the each end of the SCSI bu

SCSI Termination3-10 DAC960PG Installation GuideFigure 3-3. Internal Disk Array, Single-ended SCSI Termination

InstallationManual No. 771971 3-11Terminating External Disk ArraysIf the all the SCSI devices on a channel are connected to the external connector of

Declaration of ConformityManufacturer’s Name: Mylex CorporationManufacturer’s Address: 34551 Ardenwood Blvd.Fremont, CA94555-3607USADeclares that the

SCSI Termination3-12 DAC960PG Installation GuideTerminating Combined Internal and External Disk ArraysIf some SCSI devices are connected to the intern

InstallationManual No. 771971 3-13Configuring the SCSI DevicesSCSI disk drives and other devices that will be connected to the controller will need a

SCSI Cabling3-14 DAC960PG Installation GuideSCSI CablingThree things must be kept in mind while cabling the controller to the drives: • SCSI Bus Termi

InstallationManual No. 771971 3-15Cable LengthsGenerally speaking, as SCSI data transfer rates increase, maximum allowable cable lengths decrease. Tra

SCSI Cabling3-16 DAC960PG Installation GuideConnecting Non-Disk DevicesNon-disk SCSI devices, such as a tape drives or CD-ROM drives, will need to hav

InstallationManual No. 771971 3-17You can work around this problem by connecting the non-disk devices to one channel of the DAC960PG, while connecting

Cache Battery Backup Option3-18 DAC960PG Installation GuideCache Battery Backup OptionThe optional cache battery backup provides temporary protection

Manual No. 771971 4-1Chapter 4Start-up SequencesIntroductionThis chapter describes the DAC960PG start-up procedures and messages produced by the BIOS

Setting BIOS Options4-2 DAC960PG Installation GuideThis will be followed by:Spinning up drives...DAC960PG Firmware Version 4.nn-n-nDAC960PG Memory =

Start-up SequencesManual No. 771971 4-3Figure 4-1. BIOS options MenuUse the up and down arrow keys to highlight the BIOS options to be toggled. While

Community of EuropeCE mark is rated for the DAC960PG as follows: CISPR 22 Radiated EmissionEN55022, EN5082-1 Generic immunity standard for the followi

Setting BIOS Options4-4 DAC960PG Installation GuideFigure 4-2. BIOS Options Menu when Drive Geometry Option is SelectedPress the Esc key to exit the B

Start-up SequencesManual No. 771971 4-5Figure 4-3. BIOS Options Menu Prior to ExitBIOS Enable or DisableThe default for this option is for the BIOS to

Error Messages4-6 DAC960PG Installation GuideEnable 8 GByte or 2 GByte Drives This option can be toggled between 8 gigabyte and 2 GB drive geometries.

Start-up SequencesManual No. 771971 4-7Drive Check Error MessagesIf the firmware finds a valid DAC960PG configuration, but it doesn't match the S

Error Messages4-8 DAC960PG Installation Guidex, tgt y...No system drives found: None installedX system drives installedThe BIOS repeats the same proce

Start-up SequencesManual No. 771971 4-9Aborted InstallationWith Firmware 4.x, the installation aborted message is displayed when the BIOS finds that t

System Reboot or Power Down4-10 DAC960PG Installation Guide

Manual No. 771971 A-1Appendix AEnclosure ManagementIntroductionThe DAC960PG supports enclosure management protocols. This feature allows the host to m

SAF-TEA-2 DAC960PG Installation Guide

Manual No. 771971 B-1Appendix BIntelligent Battery Backup UnitProduct DescriptionThe Intelligent Battery Backup Unit (IBBU) is an add-on module that p

About This ManualThis installation guide covers hardware set-up and configuration procedures necessary for the installation of a DAC960PG PCI to Ultra

IBBU SpecificationsB-2 DAC960PG Installation GuideIBBU Specifications Electrical On-board Battery Electrical Properties• 3 NiCd 1.2 V, 650 mAH cells,

Intelligent Battery Backup UnitManual No. 771971 B-3Functional DescriptionGeneral Operational DescriptionThe IBBU consists of the following five block

Functional DescriptionB-4 DAC960PG Installation GuideThe battery power meter indicates the battery capacity in hours. It will indicate a charge durati

Intelligent Battery Backup UnitManual No. 771971 B-5Installation Mechanical Installation Procedure Tools Needed The only tool needed for the installat

InstallationB-6 DAC960PG Installation Guide3. Remove the protective pin cover and peel-off label from J1 on the IBBU.4. Leaving the 4 standoffs attach

Intelligent Battery Backup UnitManual No. 771971 B-7Operation Battery Conditioning Prior to Use Battery conditioning is automatic. There are no manua

Battery Backup CapacityB-8 DAC960PG Installation GuideBattery Backup CapacityBattery backup capacity is defined as the maximum duration of a power fai

Intelligent Battery Backup UnitManual No. 771971 B-9Removing the Battery Backup ModuleThe battery backup module will need to be removed for one of the

Battery Backup CapacityB-10 DAC960PG Installation Guidem CautionIf you plan to operate your DAC960PG without the IBBU, be sure to reinstall the loopba

Intelligent Battery Backup UnitManual No. 771971 B-11Information on the RBRC program and the locations of participating recycling centers can be obtai

ConventionsThroughout the manual, the following conventions are used to describe user interaction with the product:boldThe user must enter the bold te

Battery Backup CapacityB-12 DAC960PG Installation Guide

Manual No. 771971 Glossary-1GlossaryBattery Backup UnitSee “Intelligent Battery Backup Unit.”CacheController memory used to speed up data transfer to

GlossaryGlossary-2 DAC960PG Installation GuideDisk Failure DetectionThe controller automatically detects SCSI disk failures. A monitoring process runn

GlossaryManual No. 771971 Glossary-3Hot Replacement of Disks (“Hot Swap”)The design of the DAC960 Series controllers allows for the replacement of fai

GlossaryGlossary-4 DAC960PG Installation GuideCritical: A Logical Drive is in a “critical” state if...It has been configured at RAID level 1, 3, 5, o

GlossaryManual No. 771971 Glossary-5RAIDRAID stands for Redundant Array of Independent Disks. The DAC960PG controllers implement this technology to co

GlossaryGlossary-6 DAC960PG Installation Guide☛NoteThe host operating system drivers and software utilities remain unchanged regardless of the level o

GlossaryManual No. 771971 Glossary-7Ready: A SCSI disk drive is in a “ready” state if it...Is powered on; andIs available to be configured during the

GlossaryGlossary-8 DAC960PG Installation GuideSessionRefers to the period of time between any two consecutive system shutdowns. System shutdown may be

GlossaryManual No. 771971 Glossary-9During the automatic rebuild process, system activity continues as normal. System performance may degrade slightly