[8578] in Info-AFS_Redistribution
RE: Really slow vos dumps to local disks
daemon@ATHENA.MIT.EDU (Neulinger, Nathan R.)
Thu Mar 15 16:00:00 2001
Message-ID: <F349BC4F5799D411ACE100D0B706B3BB3426B5@umr-mail03.cc.umr.edu>
From: "Neulinger, Nathan R." <nneul@umr.edu>
To: "'joseph@ctc.com'" <joseph@ctc.com>, Info-AFS@transarc.com
Date: Thu, 15 Mar 2001 14:53:46 -0600
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The slowdown I've seen is on the server itself, as well as remote clients -
in fact local/remote doesn't seem to be making much difference.
What's the nature of your data - is it BIG files, or lots of small ones?
-- Nathan
> -----Original Message-----
> From: Norman P. B. Joseph [mailto:joseph@ctc.com]
> Sent: Thursday, March 15, 2001 2:46 PM
> To: Info-AFS@transarc.com
> Subject: Re: Really slow vos dumps to local disks
>
>
> Well, I learned that the problem with slow "vos dumps" is
> apparently a well
> known (by everyone but me <g>) AFS/Rx issue. Thanks to some
> clues dropped in
> one or two messages on the openafs-info list I modified my
> scripts to do "vos
> dump"s on each file server machine (instead of just the one),
> and of only those
> volumes that live on that particular file server (instead of
> -all- volumes).
> The difference was like night and day. I was able to dump
> ~5-6 GB of backup
> volume data per machine in anywhere between 15 - 30 minutes.
> Unbelievable.
> Thanks.
>
> --
> Norman Joseph, UNIX Systems Engineer joseph@ctc.com
> IC|XC
> Concurrent Technologies Corporation 814/269.2633
> --+--
>
> NI|KA
> ftp://ftp.ctc.com/pub/PGP-keys/joseph.asc
>
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