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IBM MegaRAID 8480 manual Replacing a Failed Controller Containing Data in the LSIiTBBU02

Models: MegaRAID 8480

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2.5Replacing a Failed Controller Containing Data in the LSIiTBBU02

Figure 2.5 Connecting the MegaRAID 8480 RAID Controller with External Connectors to a Drive Box or Drive Enclosure

To Drive Box

or Expander Board

4-Lane

External PCB

Receptacle and Plug and Cable with Jackscrews SFF-8470

2.5Replacing a Failed Controller Containing Data in the LSIiTBBU02

The MegaRAID intelligible Transportable Battery Backup Module 2 (LSIiTBBU02) is a cache memory module with an integrated battery pack. The module provides an uninterrupted power source to the module if power is unexpectedly interrupted while cached data is still present. If the power failure is the result of the MegaRAID 8480 Storage Adapter itself failing, then the LSIiTBBU02 can be moved to a new controller and the data can be recovered. The replacement controller must have a cleared configuration.

Note: See the Warranty and Support Information document for the replacement battery part number and battery-disposal instructions.

Replacing a Failed Controller Containing Data in the LSIiTBBU02

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Copyright © 2006-2007 by LSI Corporation. All rights reserved.

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IBM MegaRAID 8480 manual Replacing a Failed Controller Containing Data in the LSIiTBBU02

Contents

J u l y 2 USER’S GUIDEMegaRAID Storage Adapter This document contains copyrighted information of LSI Corporation Audience PrefaceOrganization MegaRAID 8480 Device Driver Installation User’s Guide Related Publications MegaRAID Battery Backup Unit User’s GuideIBM Document Number 42D8847 IBM Document Number 42D8845Revision History ConventionsNote Notes contain supplementary information that can affect system performanceIBM Customer Support Safety InstructionsE-mail PhoneWhen Working Inside Your Computer viiiPreface MegaRAID 8480 Hardware Installation ContentsChapter Overview ChapterxContents MegaRAID 8480 Storage Adapter CharacteristicsChapter Appendix A Glossary of Terms and AbbreviationsContents FiguresCopyright 2006-2007 by LSI Corporation. All rights reserved xiiContentsTables Copyright 2006-2007 by LSI Corporation. All rights reserved xivContents1.1 Overview Chapter OverviewNote You cannot mix SAS and SATA drives within the same virtual disks MegaRAID Battery Backup Unit User’s Guide on the1.3 General Description 1.2 MegaRAID 8480 RAID Controller Description1.2.1 Controller Limitations 1.4 Configuration Scenario Configuration Scenario Figure 1.1 Example of LSI SAS Direct-Connect ApplicationSAS/SATA II Device SAS/SATA II Device SAS/SATA II Device SAS/SATA II DevicePhysical Drives Required for Each RAID Level 1.4.1 Number of Physical Disks SupportedPhysical Drives Required for Each RAID Level Cont 1.5 Benefits of the SAS Interface1.5.1 PCI Express Architecture 1.6 Summary of MegaRAID 8480 RAID Controller Characteristics1.5.2 Operating System Support 1.6.2 SATA II Features 1.6.1 SAS FeaturesComplies with the PCI Express Specification, Revision 1.0a 1.6.4 Usability Features1.6.3 PCI Express Performance 1.6.6 Drive Roaming 1.6.5 Flexibility Features1.6.7 Drive Migration Hardware Specifications 1.7 Hardware Specifications1-13 See the Warranty and Support Information document for information Specifications1.8 Technical Support MegaRAID 8480 Storage Adapter2.1 Requirements Chapter MegaRAID Hardware Installation2.3 Detailed Installation 2.2 Quick InstallationMegaRAID 8480 Hardware Installation A license agreement Warranty information PCI Express Slot Figure 2.1 Example of MegaRAID Board Installation in ab. Use cables that meet the SAS specification Figure 2.2 Internal SAS Cable for Connection to SAS and/or 2.4 SAS Device CablesSATA II Physical Disks SAS Device Cables Figure 2.3 SATA II ConnectorsFigure 2.5 shows how to connect the external SAS cable from the Replacing a Failed Controller Containing Data in the LSIiTBBU02 2.5 Replacing a Failed Controller Containing Data in the LSIiTBBU022.6 After Installing the Storage Adapter 3.1 MegaRAID 8480 RAID Controller Chapter MegaRAID 8480 Storage Adapter CharacteristicsFigure 3.1 Card Layout for the MegaRAID 8480 RAID Controller 3.1.1 MegaRAID 8480 RAID ControllerConnector MegaRAID 8480 RAID Controller - ConnectorsDescription Type3.3 Technical Specifications 3.2 MegaRAID 8480 Storage Adapter CharacteristicsTable 3.2 MegaRAID 8480 Characteristics Storage Adapter Specifications 3.3.1 Storage Adapter Specifications3.3.3 Fault Tolerance 3.3.2 Array Performance FeaturesArray Performance Features Fault Tolerance Features3.3.6 Safety Characteristics 3.3.4 Electrical CharacteristicsMaximum Power Requirements 3.3.5 Operating and Non-operating ConditionsCopyright 2006-2007 by LSI Corporation. All rights reserved MegaRAID 8480 Storage Adapter Characteristicsconfiguration BIOSAppendix A Glossary of Terms and Abbreviations activehost adapter hostboard hot spareRAID peripheral devicesRAID levels SATA SAS devicestripe size striping