Exadata: HC-Disk Failure On Storage Cell X

Asset ID:	1-72-1645042.1
Update Date:	2015-03-16
Keywords:

Solution Type Problem Resolution Sure

Solution 1645042.1 : Exadata: HC-Disk Failure On Storage Cell X

Applies to:

Exadata Database Machine X2-2 Hardware
Information in this document applies to any platform.

Symptoms

Disk Failure on Storage Cell 7 , Disk Dropped, No alert in alerthistory.

=================================================================================================================
  name: exprceladm07
  cellVersion: OSS_11.2.3.2.0_LINUX.X64_120713
  id: 1228FMM0DX
  makeModel: Oracle Corporation SUN FIRE X4270 M2 SERVER SAS
  releaseVersion: 11.2.3.2.0
  upTime: 0 days, 0:53
=================================================================================================================
Issue Description: Disk Failure on Storage Cell 7 , Disk Dropped
=================================================================================================================

  name: 20:11
  deviceId: 8
  diskType: HardDisk
  enclosureDeviceId: 20
  errMediaCount: 0
  errOtherCount: 0
  foreignState: false
  luns: 0_11
  makeModel: "HITACHI HUS1560SCSUN600G"
  physicalFirmware: A6C0
  physicalInsertTime: 2012-12-06T17:04:22+05:30
  physicalInterface: sas
  physicalSerial: KK1MPM
  physicalSize: 558.9109999993816G
  slotNumber: 11
  status: warning - poor performance

  name: 0_11
  cellDisk: CD_11_exprceladm07
  deviceName: /dev/sdl
  diskType: HardDisk
  id: 0_11
  isSystemLun: FALSE
  lunAutoCreate: FALSE
  lunSize: 557.861328125G
  lunUID: 0_11
  physicalDrives: 20:11
  raidLevel: 0
  lunWriteCacheMode: "WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU"
  status: warning - poor performance

Cause

An alert for disks in 'poor performance' state should be generated. There are several different reasons a disk may enter this state, the cause may be down-rev firmware or image or some other event.

Solution

A sundiag.sh should be collected and uploaded for review to determine if this is being caused by a software failure or hardware failure, and what the appropriate action plan should be.

References

<NOTE:1326611.1> - Things to Check in ASM When Replacing an ONLINE disk from Exadata Storage Cell
<NOTE:166650.1> - Working Effectively With Oracle Support - Best Practices
<NOTE:761868.1> - Oracle Exadata Diagnostic Information required for Disk Failures and some other Hardware issues

Attachments

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