Re: AIX 5.2 ls command hanging on JFS2 FS
From: Jurjen Oskam (joskam_at_quadpro.stupendous.org)
Date: 08/31/04
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Date: 31 Aug 2004 07:33:31 GMT
On 2004-08-31, Michael E. Thomadakis <miket@hellas.tamu.edu> wrote:
> j| What mount options were used? In the case of NFS, some options can result in
> j| unkillable hung processes when the server is unreachable/unavailable.
>
> I always use the intr,bg,wsize= ,rsize =
I very rarely use NFS, so this might not be too grounded in reality, but the
manpage for mount says that "hard" is the default. That would mean that any
outstanding I/O requests are tried an retried until the process responsible
for the request is interrupted (which is possible because you used "intr").
> Any idea on how to umount FSs from a dead NFS server, when losing data is OK.
Try to determine if there are any processes with open files on the affected
filesystems (with fuser -c and / or fuser -d). Then kill those processes, and
try to umount the filesystems when all processes are gone. As an alternative,
look into the "soft" mount option for NFS.
-- Jurjen Oskam "I often reflect that if "privileges" had been called "responsibilities" or "duties", I would have saved thousands of hours explaining to people why they were only gonna get them over my dead body." - Lee K. Gleason, VMS sysadmin
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