ADSM-L

Re: Finding Volume Names

2006-10-12 13:01:44
Subject: Re: Finding Volume Names
From: Ben Bullock <bbullock AT MICRON DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Thu, 12 Oct 2006 11:01:01 -0600
Getting it to match to a session is impossible.

The closest thing I can think of is the output from a "q nodedata
NODENAME" command. That will tell you what tapes that host has data on
that may or may-not need to be mounted depending on the extent of the
restore.



-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Richard Sims
Sent: Thursday, October 12, 2006 9:12 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Finding Volume Names

On Oct 12, 2006, at 10:41 AM, Gopinathan, Srinath wrote:

> Can anybody let me know on 'How to find the list of Volumes associated

> with a backup, from the schedule name (or) nodename?'

There is no real way to determine what volumes were associated with a
specific backup.  The Volumeusage table is no good because it contains
all primary and copy storage pool tapes associated with the node,
regardless of date.  You could bracket a time period in the Activity Log
and try to discern tape usage by virtue of mounts, but that's messy, and
doesn't account for volumes which happened to already be mounted
(residual tape - or disk, for that matter).  You could try doing a
Select from the Backups table, again trying to isolate by time period,
but that's expensive to run and doesn't necessarily correlate to a
session.  Consider also that, at any time thereafter, the objects may
move to a different volume.

In any case, the nature of an Enterprise level product like TSM is that
you should not need to know this information, as is the case in many
virtualization technologies today: the managing subsystem takes care of
data provisioning, and "you don't need to know".

    Richard Sims

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