ODA X5-2 Drops Disk and Rebalance Operations Lead to Outage or Hang in Performance

(Doc ID 2318102.1)

Last updated on OCTOBER 25, 2017

Applies to:

Oracle Database Appliance X5-2 - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Symptoms

ODA performance degrades with ODA X5-2
Very poor performance including IO and high db file sequential reads are the main symptom.
Frequently associated with problems with a single disk.
Able to confirm that a disk offlined can be brought back online, but requires a very long time before rebalance completes.
Similar problems with other disks can happen intermittently and seems associated with load.

Changes

 

Cause

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