All,
I'm running into a problem with JFS and needed some pointers.
I have two 2TB RAID5 arrays on a 3Ware 7000-series controller on a test machine here running 2.6.7-1-386 (stock Debian testing kernel). Both arrays were scanned throroughly using badblocks and have JFS filesystems on them created using:
mkfs.jfs /dev/sdc1
mkfs.jfs /dev/sdd1
I mounted them to /mnt/sdc1 and /mnt/sdd1 respectively, added entries to fstab, and didn't have any problems until the machine went down due to a power outage. I brought the machine back up and it didn't mount either of the arrays. I tried to manually mount them:
mount /mnt/sdc1
and it said it couldn't find a valid filesystem. I thought maybe fstab entries were screwed up, so I provided all the flags:
mount -t jfs /dev/sdc1 /mnt/sdc1
and it still said it couldn't find a valid filesystem. So, I did an fsck:
# jfs_fsck /dev/sdc1
jfs_fsck version 1.1.7, 22-Jul-2004
processing started: 4/22/2005 13.56.25
Using default parameter: -p
The current device is: /dev/sdc1
Block size in bytes: 4096
Filesystem size in blocks: 488386032
**Phase 0 - Replay Journal Log
Filesystem is clean. # jfs_fsck /dev/sdd1
jfs_fsck version 1.1.7, 22-Jul-2004
processing started: 4/22/2005 14.2.13
Using default parameter: -p
The current device is: /dev/sdd1
Block size in bytes: 4096
Filesystem size in blocks: 488386032
**Phase 0 - Replay Journal Log
Filesystem is clean.Then, issuing "mount /mnt/sdc1" and "mount /mnt/sdd1" worked as expected and everything was there. Now, as a test (because I'm sure that this isn't how JFS is supposed to work), I made sure the computer was idle and pulled the plug. When it came back up, same thing (no mounts, had to run jfs_fsck to get them mounted). Now, I just reboot and the same thing (no mounts, so run jfs_fsck and mount).
Because jfs_fsck isn't reporting any bad entries, it seems like it is just replaying the journal, but should that happen when attempting to mount the device? Am I missing something? I had XFS on these same arrays before JFS and didn't run into anything like this (we are evaluating different FS's).
We are planning on moving back down to 2.4.27 on this machine for further testing; would that move potentially resolve issues or create more?
Any help is greatly appreciated!
-Scott
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