Re: restore q from TSM

From: Vishal Gupta <vishal_at_vishalgupta.com>
Date: Wed, 23 Feb 2011 09:46:00 +0000
Message-ID: <6B53D8F3-E608-440D-B643-879681BF4176_at_vishalgupta.com>

If backups are stored on tape in TSM, then even if you start restore of database to 5 machines, other sessions will have to wait as backup stored on tape are being restored by first session and first session is holding the tape. TSM does not allow more than one session to access the same tape ( tape being serial access medium) at any point in time. Though if TSM was using VTL (virtual tape library) which holds backups on disk on TSM server, then you could restore to multiple machines at the same time. Because disk is a random access drive unlike tape which are serial access drives.

Cheers,
Vishal

On 22 Feb 2011, at 16:53, "Peter Hitchman" <pjhoraclel_at_gmail.com> wrote:

> Hi,
> I do not have much TSM admin background either! But TSM may have been
> set-up so that you will only be allowed so many tape mounts possibly
> per session connecting to TSM and probably a TSM global maximum
> setting as well, which will probably be the number of tape drives you
> have. Sorry but you really need to talk to your TSM admin, if such
> exists, or if that is you, look much more deeply into TSM admin.
>
> Regards
> Pete
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> http://www.freelists.org/webpage/oracle-l
>
>

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Received on Wed Feb 23 2011 - 03:46:00 CST