A fix is available
APAR status
Closed as program error.
Error description
Rollback of external snapshot on large J2 filesystem(larger than 8TB or 8192GB) results in corrupted filesystem After the Rollback attempting to mount the filesystem gives error: test:/# mount /my_large_fs Replaying log for /dev/test_vmax_lv. mount: 0506-324 Cannot mount /dev/test_vmax_lv on /my_large_fs. The media is not formatted or the format is not correct. fsck on the filesystem will give the following error: test:/# fsck /dev/test_vmax_lv The current volume is: /dev/test_vmax_lv fsck: 0507-020 Invalid magic number in the primary superblock. fsck: 0507-013 Invalid magic number in the secondary superblock. Primary superblock is corrupt. Secondary superblock is corrupt. fsck: 0507-018 Superblock is corrupt and cannot be repaired. Both primary and secondary copies are corrupt. Cannot continue
Local fix
Problem summary
Rollback of external snapshot on large J2 filesystem(larger than 8TB or 8192GB) results in corrupted filesystem.
Problem conclusion
corrected the code to aviod filesystem corruption.
Temporary fix
Comments
6100-07 - use AIX APAR IV58377 6100-08 - use AIX APAR IV58041 6100-09 - use AIX APAR IV54476 6100-09 - use AIX APAR IV54476 6100-09 - use AIX APAR IV54476 7100-01 - use AIX APAR IV53482 7100-02 - use AIX APAR IV57152 7100-03 - use AIX APAR IV54561 7100-04 - use AIX APAR IV54541
APAR Information
APAR number
IV54561
Reported component name
AIX V7.1
Reported component ID
5765H4000
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2014-01-24
Closed date
2014-01-24
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 U859029
UP14/05/22 I 1000
PTF to Fileset Mapping
U859029 bos.rte.filesystem 7.1.3.15
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Document Information
Modified date:
10 May 2016