ADSM-L

Re: TSM client and the linux automounter

2002-09-17 23:51:35
Subject: Re: TSM client and the linux automounter
From: "Mark D. Rodriguez" <mark AT MDRCONSULT DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Tue, 17 Sep 2002 22:50:20 -0500
Michael Glad wrote:

We've been running an ADSM 3.1 server for some years and are now
playing with the 5.1.1 TSM linux client (on RedHat 7.1/3) as there's
no ADSM client for Linux. We'we tested carefully that it works for
our simple backup/restore purposes.

However, the TSM client's handling of automounted directories is
causing trouble. We use the automounter both for accessing indidual
disks (/home/...) and user home directories (/users/...) locally
and over the network.

The problem is that TSM will not back up any local catalogue that is
also automounted. Making a directory a 'Virtualmountpoint' seems to
solve the problem but as our next server is going to store the files
of hundreds of users, this  is not attractive.

I've been experimenting for hours with the 'domain' option but have not
reached any working solution. Files in a automounted directory are
not backed up or they are expired during the next incremental backup run.
I've been suggested to use the 'automount' option, but the documentation
states that it is not supported under Linux and the client seems to
ignore it.

I would be grateful to hear if there's a solution to the
problem. It does not matter much if I have backup the physical disk
mountpoint (/a/home/...) or the automount point (/home/...).

Greetings,

       Michael Glad,email: glad AT daimi.au DOT dk
       CS Dept, Aarhus University
       Denmark.


Hi,

I have been using the Linux client for a while and I have noticed
similar problems with automount.  Personally I wouldn't backup
automounted FS.  I prefer to backup that data from the box that is
servering it, i.e. directly from the NFS server for that automounted FS.
This is preferable since you will only move the data across the network
one time.

Therefore, I recommend that you set your domain to only backup local
FS's either thru "doman all-local"  or "domain /fs1 /fs2 ..." and of
course backup the automounted files from the NFS server that has those
files locally.

--
Regards,
Mark D. Rodriguez
President MDR Consulting, Inc.

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