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Asset ID: 1-72-2199497.1
Update Date:2017-01-26
Keywords:

Solution Type  Problem Resolution Sure

Solution  2199497.1 :   ODA: ASM Rebalance May Run More Than 48 hours After Disk Replacement  


Related Items
  • Oracle Database Appliance X5-2
  •  
Related Categories
  • PLA-Support>Eng Systems>Exadata/ODA/SSC>Oracle Database Appliance>DB: ODA_EST
  •  


This issue is not limit to ODA but general diskgroup with ACFS volume group.  But all ODA 12c Customer will hit this issue.

Created from <SR 3-13361759081>

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

The ASM Disk Group rebalance speed is slow and averages about 16M/s (about 1G/min) when ACFS filesystem exist, which correlates to rebalance needing over 50 hours to finish.

Cause

This is unpublished ACFS bug 22695831 which causes the rebalance on related disk group can only using power 1 even though asm_power_limit is set to a higher value.

Solution

We have included the fix in ODA 12.1.2.9

Upgrade to ODA 12.1.2.9 or later version can solve the issue.

References

<BUG:22105607> - ESC: PCIE FAULT CAUSED BY ACS VIOLATION ON ESTES-EXT
<BUG:21647754> - LOTS OF CUSTOMERS REPORTING FMA EVENTS: SPX86A-8004-TG AND SPX86A-8002-RK
<BUG:24758960> - ASM REBALANCE RUN EXTREMELY SLOW DURING DISK REPLACEMENT ON ODA
<BUG:24710788> - CRS IS NOT COMING UP AFTER ODA REBOOT
<BUG:22695831> - REBALANCE IN ACFS ENABLED DISKGROUP FOR RESILVERING IS SUPER SLOW TO FOREVER

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