ADSM-L

Re: [ADSM-L] ?anyone using TSM to backup Panasus PanFS?

2010-01-27 09:46:30
Subject: Re: [ADSM-L] ?anyone using TSM to backup Panasus PanFS?
From: Skylar Thompson <skylar2 AT U.WASHINGTON DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 27 Jan 2010 06:45:04 -0800
Does PanFS have a tool like GPFS's tslistall? If it does you can use
that to at least get a list of files to pass to TSM so TSM itself
doesn't have to do a scan. If you can get mtime information you could
even figure out exactly what files have changed since the last backup
and just do a selective backup. Another thing you can do if your data is
easily partitionable is to setup a proxy node group and only backup part
of the filesystem on each node.

James R Owen wrote:
Yale uses Panasus PanFS, a massive parallel storage system, to store
research data generated from HPC clusters.  In considering feasibility
to backup PanFS using TSM,
we are concerned about whether TSM is appropriate to backup and restore:

 1. very large volumes,
 2. deep  subdirectory hierarchy  with 100's to 1000's of sublevels,
 3. large numbers of files within individual subdirectories,
 4. much larger numbers of files within each directory hierarchy.

Are there effective maximum limits for any of the above, beyond which
TSM becomes inappropriate to effectively perform backups and restores?

Please advise about the feasibility and any configuration
recommendation(s)
to maximize PanFS backup and restore efficiency using TSM.

Thanks for your help.
--
Jim.Owen AT Yale DOT Edu   (w#203.432.6693, c#203.494.9201, h#203.387.3030)

--
-- Skylar Thompson (skylar2 AT u.washington DOT edu)
-- Genome Sciences Department, System Administrator
-- Foege Building S048, (206)-685-7354
-- University of Washington School of Medicine

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