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"WARNING: stale disk header detected" in ASM alert log (Doc ID 1947021.1)

 

Oracle Database - Enterprise Edition - Version 11.2.0.3 to 11.2.0.3 [Release 11.2]

Oracle Database Cloud Schema Service - Version N/A and later Oracle Database Exadata Cloud Machine - Version N/A and later Oracle Cloud Infrastructure - Database Service - Version N/A and later Oracle Database Backup Service - Version N/A and later Information in this document applies to any platform.

SYMPTOMS

ASM alert log shows

NOTE: F1X0 found on disk 0 au 2 fcn 0.5196094 NOTE: cache opening disk 1 of grp 3: ASM_VOTING_2 label:ASM_VOTING_2 WARNING: stale disk header detected disk=1 group=3 (DATA) f1b1locn=00000002 fcn=0.2102605 NOTE: stale disk header will be dumped to /u01/app/oracle/diag/asm/+asm/+ASM1/trace/+ASM1_ora_19890.trc NOTE: F1X0 found on disk 1 au 2 fcn 0.2102605 NOTE: cache opening disk 2 of grp 3: ASM_VOTING_3 label:ASM_VOTING_3 NOTE: F1X0 found on disk 2 au 2 fcn 0.5196094 NOTE: cache mounting (not first) normal redundancy group 3/0x19AF1D92 (DATA) verify through "alter diskgroup DATA check norepair" display no error.

CAUSE

The warning means that the header for the disk includes inconsistent information. 

 

SOLUTION

If "Alter diskgroup <diskgroup name> check norepair" working fine, You can ignore the error.

Other way to remove this error is to remove the disk and add it back. Drop the disk and add it again with force option. - Drop the disk from diskgroup SQL> ALTER DISKGROUP DATA DROP DISK<Problematic disk> ; - check until rebalance completes SQL> SELECT * FROM GV$ASM_OPERATION; - once rebalance completes. add the disk back to the diskgroup SQL> ALTER DISKGROUP DATA ADD DISK '<disk name>' force; - and again check until rebalance completes SQL> SELECT * FROM GV$ASM_OPERATION;

 

Bug 13480225  ASM reports: WARNING: stale disk header detected

 This note gives a brief overview of bug 13480225. 

 The content was last updated on: 29-JUL-2018  Click  for details of each of the sections below.

Affects:

Product (Component)	Oracle Server (Rdbms)
Range of versions believed to be affected	Versions BELOW 12.1
Versions confirmed as being affected
Platforms affected	Generic (all / most platforms affected)

Fixed:

The fix for 13480225 is first included in

Interim patches may be available for earlier versions - click  to check.

Symptoms:	Related To:
(None Specified)

Description

This bug is only relevant when using Automatic Storage Management (ASM)

ASM instance reports an staled disk, even when the disk doesn't have any corruption Rediscovery Notes 1. ASM Alert log file reports the messages:  WARNING: stale disk header detected disk=2 group=5 (
    
     ) f1b1locn=00000002 fcn=0.943 NOTE: stale disk header will be dumped to 
     
      /diag//asm/+asm/+ASM1/trace/+ASM1_smon_19993.trc 2. Checking the diskgroup doesn't report any error, using the following command:  alter diskgroup 
      
        check norepair;  Workaround  Drop disk Wait for rebalance to complete Add it back
      
     
    

 

Please note: The above is a summary description only. Actual symptoms can vary. Matching to any symptoms here does not confirm that you are encountering this problem. For questions about this bug please consult Oracle Support.

 

References

 (This link will only work for PUBLISHED bugs)

 Information on the sections in this article

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