A fix is available
APAR status
Closed as program error.
Error description
If we have the following conditions: 1) JFS2 filesystem has mount guard turned on 2) JFS2 filesystem has been corrupted in some way 3) JFS2 filesystem has been cleanly unmounted On a remount attempt you will get the following error message indication filesystem may still be mounted: Cannot mount guarded filesystem. The filesystem is potentially mounted on another node. This should not be outputted since the filesystem has been cleanly unmounted and is not mounted on another node. Instead an error message concerning the fact there is FS corruption and fsck needs to be run should be outputted. This has been confusing analysis of root cause in HACMP problems and flash copy problems.
Local fix
Only workaround is to turn mount guard off which is not recommended.
Problem summary
On attempting to remount a corrupted filesystem after a clean unmount, an incorrect error message implying that the filesystem is still mounted is displayed if the filesystem has "mount guard" turned on.
Problem conclusion
After successful unmount, complete cleanup operations in all cases.
Temporary fix
Comments
6100-08 - use AIX APAR IV64421 6100-09 - use AIX APAR IV59662 6100-09 - use AIX APAR IV59662 7100-02 - use AIX APAR IV64240 7100-03 - use AIX APAR IV59194 7100-03 - use AIX APAR IV59194 7100-04 - use AIX APAR IV59822
APAR Information
APAR number
IV64240
Reported component name
AIX V7.1
Reported component ID
5765H4000
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2014-08-29
Closed date
2014-08-29
Last modified date
2016-05-10
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
AIX V7.1
Fixed component ID
5765H4000
Applicable component levels
R710 PSY U867194
UP15/01/19 I 1000
PTF to Fileset Mapping
U867194 bos.mp64 7.1.2.19
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Document Information
Modified date:
10 May 2016