[OpenAFS] fsck in metadevice using lvm in solaris 8

[Derek Atkins]

You cannot use the standard fsck on an AFS Server partition or you
will destroy your AFS data.  You also cannot use UFS logging.

(Note: if you use the namei fileserver then this is not true, but
Solaris does NOT use the namei fileserver by default).

-derek

Renato Arruda <rla9216@rit.edu> writes:

> Hi,
> 
> I am installing an openafs server on a sun fire v880. I have 4 hds in joined 
> using lvm (d30 -r c1t2d0s0 c1t3d0s0 c1t4d0s0 c1t5d0s0, from /etc/lvm/md.tab) 
> making a big metadevice /dev/md/rdsk/d30 with more than 100g.
> 
> I am using logging in that metadevice (from /etc/vfstab: /dev/md/dsk/d30 
> /dev/md/rdsk/d30        /vicepa afs     2       yes     logging)
> 
> This is what happens when i unmount and try to fsck it. (it always does that, 
> though if i try to mount it again it mounts fine, because the fs doesn't have 
> a flag saying that it's state is not okay)
> 
> # fsck /dev/md/dsk/d30
> ----Open AFS (R) openafs 1.2.6 fsck----
> ** /dev/md/dsk/d30
> ** Last Mounted on /vicepa
> ** Phase 1 - Check Blocks and Sizes
> ** Phase 2 - Check Pathnames
> ** Phase 3 - Check Connectivity
> ** Phase 4 - Check Reference Counts
> ** Phase 5 - Check Cyl groups
> FREE BLK COUNT(S) WRONG IN CYL GROUP (SUPERBLK)
> SALVAGE? [yn] y
> 
> BLK(S) MISSING IN BIT MAPS
> SALVAGE? [yn] y
> 
> SUMMARY INFORMATION BAD
> SALVAGE? [yn] y
> 
> 19 files, 37 used, 105001474 free, 4 AFS files (34 frags, 13125180 blocks, 
> 0.0% fragmentation)
> /dev/md/dsk/d30 FILE SYSTEM STATE SET TO OKAY
> 
> ***** FILE SYSTEM WAS MODIFIED *****
> /dev/md/dsk/d30: AFS file system partition was modified; forcing full salvage
> #
> 
> (result from a #df -k: /dev/md/dsk/d30      105001511   65581 103885915     1%    
> /vicepa)
> 
> I don't have many volumes in it currently, but i wonder in case of a system 
> crash if this will became an issue. I must admit it is the first time i have 
> ran with this sort of problem (the other afs servers i have managed had 80g 
> and less /vicepx partitions and were running linux (ext3), not solaris)...
> 
> Could it be that the openafs fsck program doesn't understand/can't handle 
> these lvm metadevices? the few files/volumes that are there are completely 
> unchanged by fsck.
> 
> Any insight would be _greatly_ appreciated.
> Thanks,
> 
> Renato
> -- 
> Renato Arruda <rla9216@rit.edu> http://www.rarruda.org/
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-- 
       Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
       Member, MIT Student Information Processing Board  (SIPB)
       URL: http://web.mit.edu/warlord/    PP-ASEL-IA     N1NWH
       warlord@MIT.EDU                        PGP key available