IBM-AUSTRIA - PC-HW-Support    30 Aug 1999

IBM Netfinity Servers / SCSI-RAID HMM

•  Brief description of Hard Disk Drives (HDD's)
•  Media Manufacturing
•  HDD Manufacturing Defect Mapping
•  HDD Defect Management
•  Summary

•  EXECUTIVE OVERVIEW
  •  'Catastrophic' Drive Failures
  •  Grown Sector Media Errors
  •  Combination Failures
•  DRIVE PROTECTION FEATURES
  •  Remapping Bad Sectors
  •  Error Correction Code (ECC)
  •  Predictive Failure Analysis
•  RAID-5 ADAPTER LEVEL PROTECTION
  •  Normal Operations
  •  Catastrophic Disk Failure
  •  Grown Sector Media Errors
  •  Combination Failures
•  CONFIGURATION PROCEDURES REQUIRED TO PROVIDE RAID-5 PROTECTION
•  PROCEDURES TO PROVIDE ADDITIONAL PROTECTION FOR RAID-5 and RAID-1 LOGICAL DRIVES
  •  Full Tape Backups
  •  Periodic Data Scrubbing
•  DATA SCRUBBING UTILITIES AVAILABLE VIA ARRAY SYNCHRONIZATION
  •  Netfinity Manager 5.0
    •  Instructions for Configuring IBM ServeRAlD and ServeRAID II Adapters under Netfinity Manager 5.0
    •  Instructions for Scheduling Data Scrubbing
•  IBM ServeRAlD and ServeRAID II Administration and Monitoring Program
  •  IPSSEND.EXE for IBM ServeRAlD and ServeRAlD II Adapters
  •  RAIDSEND.EXE Utility

•  Define a Hot Spare
•  Hot Spare Advantages
•  Install and Use NetFinity Manager
•  Data Scrub Drives Weekly
•  Install and Use RAID Administration and Monitoring Utilities
  •  Ensure Current Backup of RAID Configuration is Available
  •  Have a RAID Configuration Utility Diskette Available
•  Recovery Procedures for DDD Drives
  •  An Overview of Drive Replacement
    •  Using and Understanding the RAID Administration Log
  •  First Actions to be Performed On Service Call with DDD Drives
  •  Recovery Procedures When HSP is Present at Time of Failure
    •  One DHS Drive, No RBL
    •  One DDD Drive, One DHS Drive, No RBL
    •  More than One DDD Drive, One DHS, No RBL
    •  One DHS Drive, Zero or More DDD Drives, and One RBL Drive
  •  Recovery Procedures When HSP is not Present at Time of Failure
    •  One DDD Drive, No RBL
    •  Two DDD Drives, No RBL
    •  More than Two DDD Drives, No RBL
  •  Recovery From RAID Adapter Failure

High Availability of Your RAID Subsystem with IBM SCSI-2 Fast/Wide PCI-Bus RAID Adapter
- and -
IBM Fast/Wide Streaming RAID Adapter

Preventive Measures to Help Obtain High Availability

•  Define a Hot Spare
•  Hot Spare Advantages
•  Install and Use NetFinity Manager
•  Data Scrub Drives Weekly
•  Apply All Updates
•  Install and Use RAID Administration and Monitoring Utilities
•  Ensure Current Backup of RAID Configuration is Available
•  Recovery Procedures for DDD Drives
  •  An Overview of Drive Replacement
  •  Software Replace vs. Physical Replace
•  Using and Understanding the RAID Administration Log
•  First Actions to be Performed On Service Call with DDD Drives
•  Recovery Procedures When HSP is Present at Time of Failure
  •  One DDD Drive, No OFL
  •  Two DDD Drives, No OFL
  •  More than 2 DDD Drives, No OFL
  •  One or More DDD Drives, and One OFL Drive
•  Recovery Procedures When HSP is not Present at Time of Failure
  •  One DDD Drive, No OFL
  •  Two DDD Drives, No OFL
  •  More than 2 DDD Drives, No OFL

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