ADSM-L

Re: TSM 5.1 EMC Timefinder SAN

2002-10-10 09:43:38
Subject: Re: TSM 5.1 EMC Timefinder SAN
From: Glen Churchfield <glen.churchfield AT SARCOM DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Thu, 10 Oct 2002 09:27:33 -0400
 Kurt,

Actually, you CAN "snapshot" SQL and Exchange databases using the Symmetrix
Integration Utilities from EMC. These create a "cold" file image of the
database on the business continuance volume(s) (BCV's) that are allocated on
the SAN. To back those BCV's up to TSM, you then need to mount the BCV to a
client that TSM recognizes and do a file backup from there. This should also
be doable as a lan-free process using sanergy, (SAN to SAN copy) but I
haven't tried that yet. You didn't say (or I missed) whether your LTO's are
fibre attached to the SAN. If they are, then you can do a lan-free backup of
a BCV direct to tape now without using sanergy and only pass the metadata
about the backup to the TSM database via LAN.

That said, I don't see the utility of backing up BCV's to tape if the TDP
backups of Exchange and/or SQL are working well. Our recovery from TDP
backups have always been quick and trouble free. That's why I haven't wanted
to substitute a cold file recovery from a restored BCV. It seems like a lot
more trouble to me. The real value of the BCV snapshots is for a quick
recovery directly from the BCV on disk.

If this sounds confusing, let me know and I can maybe clarify.



-----Original Message-----
From: Kurt Beyers
To: ADSM-L AT VM.MARIST DOT EDU
Sent: 10/9/2002 10:35 AM
Subject: Re: TSM 5.1 EMC Timefinder SAN

Ok, so it is not possible to take an online snapshot backup of MS SQL
and
Exchange. Good to know.

How about the LAN-free backup? Can you create a diskpool on the SAN so
that
the backup of the clients (connected to the SAN as well) goes via the
SAN
directly to the diskpool (and later by migration to the LTO tape pool).
Can
you take concurrently a backup of multiple clients to the same SAN
diskpool?

What TSM license are required to take a LAN-free backup?

Many thanks in advance,

Kurt


----- Original Message -----
From: "Seay, Paul" <seay_pd AT NAPTHEON DOT COM>
To: <ADSM-L AT VM.MARIST DOT EDU>
Sent: Wednesday, October 09, 2002 3:53 PM
Subject: Re: TSM 5.1 EMC Timefinder


> The real issue here is Windows File System has no support for these
kinds
of
> requirements as yet.  So, the backup software vendors have no way to
do
it.
>
> Paul D. Seay, Jr.
> Technical Specialist
> Naptheon Inc.
> 757-688-8180
>
>
> -----Original Message-----
> From: Del Hoobler [mailto:hoobler AT US.IBM DOT COM]
> Sent: Wednesday, October 09, 2002 7:08 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: TSM 5.1 EMC Timefinder
>
>
> > The TSM server (TSM 5.1 on Windows2000) has an IBM LTO library and
the
> TDP
> > for Exchange and MS SQL is currently used to backup these servers
(not
> > in the SAN yet).
> >
> > Is it possible to take an online backup of Exchange/MS SQL combined
> > with
> the
> > timefinder software of the EMC SAN?
>
> Kurt,
>
> With TDP for Exchange and TDP for SQL you are looking for online
"snapshot"
> support using EMC Timefinder.  This function does not currently exist
with
> TDP for Exchange or TDP for SQL.
>
> Thanks,
>
> Del
>
> ----------------------------------------------------
>
> Del Hoobler
> IBM Corporation
> hoobler AT us.ibm DOT com
>
> - Never cut what can be untied.
> - Commit yourself to constant improvement.
>
>

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