We have seen the problem an AIX 3.2.4 as well (once). We have a procedure
that allows us to get the filesystem on line and use cp to copy the data to
new volumes, then delete and rebuild the filesystem.
# get the old superblock and replace the current one
dd count=1 bs=4k skip=31 seek=1 if=/dev/lv?? of=/dev/lv??
# run fsck to clean up the filesystem
fsck -y /vicep?
# find the hdisk number
lslv -l lv??
# find the group name
lspv hdisk??
#find the log disk for the group
lsvg -l ?group?
# format the log disk for the group
logform loglv??
# mount the file system
mount /vicep?
# run salvager by hand
/usr/afs/bin/salvager /vicep? -force
# restart the file server
bos restart codesrv? fs
---------------------------------------------------------------------------
Ken Paquette IBM Internet: [EMAIL PROTECTED]
IBM Microelectronics Internet: [EMAIL PROTECTED]
Information Solutions & Integration IBMMAIL: USIB1X62 at IBMMAIL
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------------------ Referenced E-Mail ----------------------------
Date: Fri, 24 Sep 93 19:03:34 O
To: [EMAIL PROTECTED]
From: <[EMAIL PROTECTED]> (Michael Niksch)
Subject: Re: lost AFS partitions
Message-Id: <[EMAIL PROTECTED]>
In-Reply-To: [EMAIL PROTECTED]
"lost AFS partitions" (Sep 24, 10:28)
References: <[EMAIL PROTECTED]>
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X-Mailer: Z-Mail (2.1.4 02apr93)
On Sep 24, 10:28, [EMAIL PROTECTED] wrote:
> There is a known AIX problem that could cause a server to lose a
> partition.
>-- End of excerpt from [EMAIL PROTECTED]
None of the suggested fixes ever helped. The problem eventually
disappeared when we reinstalled the machine with AIX 3.2.4. There was a
rumour from IBM Austin saying that the cause could be a corrupted log
device for a volume group. In fact, our machine had been reporting
errors with the configuration of its rootvg since we had replaced a disk
in the rootvg. If this was in fact the cause, it would mean that a
corrupted log device of one volume group could cause loss of an AFS
partition on a different volume group. I would highly recommend to
install AIX 3.2.4.
--
Michael Niksch TEL: +41-1-7248-913
IBM Zurich Research Laboratory FAX: +41-1-7103608
Saeumerstrasse 4 BITNET/VNET: NIK at ZURICH
CH-8803 Rueschlikon / Switzerland INTERNET/IBMIPNET: [EMAIL PROTECTED]
