topic Re: fsdb errors on vxfs in Operating System - HP-UX

fsdb errors on vxfs

shai kedem — Wed, 23 May 2001 12:20:22 GMT

Hello,

I'm trying to use fsdb to look ata VXFS file system on HPUX 10.20B machine.
This utility (fsdb) was working fine on our other HP machines with 10.20 & 11.0, but on a new machine with 10.209 it gives us an error when trying to look at inode info (i.e. #i command):
"not able to seek to inode # in fset 999"

this fs is new, so I dont think it is damaged.
the utility does seem to work on other fs on the same machine.

any idea of what is this error about ?

Re: fsdb errors on vxfs

Vincenzo Restuccia — Wed, 23 May 2001 13:19:41 GMT

Try fsck and after fsdb.

Re: fsdb errors on vxfs

shai kedem — Wed, 23 May 2001 13:59:00 GMT

I tried fsck - it did not find any errors.
any other ideas ?

thanks,

Re: fsdb errors on vxfs

Vincenzo Restuccia — Wed, 23 May 2001 16:47:18 GMT

#sar -v 5 5
you can see the free inode.

Re: fsdb errors on vxfs

shai kedem — Tue, 29 May 2001 05:01:55 GMT

hi,

I ran the sar command and it yielded the following output:

# sar -v 5 5

HP-UX hp6 B.10.20 A 9000/831 05/29/01

07:51:17 text-sz ov proc-sz ov inod-sz ov file-sz ov
07:51:23 N/A N/A 128/276 0 373/476 0 173/800 0
07:51:28 N/A N/A 128/276 0 373/476 0 173/800 0
07:51:33 N/A N/A 128/276 0 373/476 0 173/800 0
07:51:38 N/A N/A 128/276 0 373/476 0 173/800 0
07:51:43 N/A N/A 125/276 0 373/476 0 170/800 0

the number do look small compared to other hp systems we have, but what this has to do with fsdb not being able to find the inode I requested ? The inode I was lokking was a number like 3450 - how this number is related to the number of free inodes and max inodes cache ?

thanks for the help and if you have other suggestions I would be happy to try it.

Re: fsdb errors on vxfs

Peggy Fong — Tue, 29 May 2001 16:58:53 GMT

Hi

Can you redo your newfs?

When you did fsck did you use options to do a full check and not use the bitmap log? (Probably wrong terminology). Use something like

fsck -F vxfs -o full,nolog /dev/vgXX/rLVOL
This might find and correct any fs problems.

Can you mount your file system?

Just a few extra ideas.

Peggy

Re: fsdb errors on vxfs

shai kedem — Thu, 31 May 2001 04:02:43 GMT

Hi,

I did full fsck - found no probelms. The thing is, this fs contains an Oracle installation that works (together with data files), so there must be something wrong with fsdb. The fs size is around 20GB, may fsdb has problems with such file systems ?

I did not see any patch in HP site regarding such issues.

any other ideas to look at ?

Re: fsdb errors on vxfs

Peggy Fong — Thu, 31 May 2001 16:10:16 GMT

Hi
I couldn't find must on the exact condition you have, but there are patches for 10.20 mentioned at the technical knowledge database and most mentioned that fsdb could corrupt a file system. I can post some links later have to leave for a while. Do a search for "fsdb error vxfs" or "fset 999" or "fsdb inode" Use "any word" and include the "technical knowledge database" and "patches" in your search areas. Under patches I chose 10.20

This will produce some documents on patches for vxfs errors and mention fsdb. None were exact but maybe they will help.

Later,
Peg

Re: fsdb errors on vxfs

shai kedem — Mon, 04 Jun 2001 03:46:57 GMT

I have tried that and the only thing that was close to my problem was a patch that fixes fsck, not fsdb. Is there a place I can check with HP support about this problem ?

thanks for the help, any other ideas are welcomed.