> Hi,
> I recently attached a Maxtor 8760S (670M) hard drive to one of our
> file servers, an HP 720 running HP-UX 8.0.7 and AFS 3.2 (hp700_ux807).
> I'm now having trouble with the 'vos move' command. I can't seem to move
> volumes off this partition without errors. Here's the message I get:
> % vos move user.mjh dusk c riafs2 c
> Failed to move data for the volume 536873252
> Could not end transaction on either the source volume 536873252 or its clone 536
> 873256
> Possible communication failure
> Error in vos move command
> I can move volumes on to it without problems and can move real small
> volumes, <2M, off of it but anything larger fails. I'm also seeing
> similar error messages when I try to dump a volume on this partition
> to tape via 'backup dump'. Occasionally 'fs' dumps core as well, but not
> every time.
> Has anyone seen anything like this on a file server under HP-UX where
> you're using a non-HP disk?
Yes,Yes,Yes...
I had an identical problem when I upgraded to HPUX 9.01.
The problem we were experiencing was with the Dyamic IO buffering mechanism.
Under 9.01, the kernel could use up to 100% of physical memory for I/O
buffers. A large vos move would cause this and force other processes
( ie. volserver, fileserver ) to swap out. The resulting error was
identical to what you are seing.
If you have not done so. Generate a new kernel with nbuf=10-20% of memory.
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Ken Sieczkowski [EMAIL PROTECTED] Merrill Lynch
World Financial Center
(212) 449-3972 Phone North Tower
(212) 449-0912 Fax New York, N.Y. 10281-1315
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