First of all I want to clarify the term "diskpool". Storage pool of type
DISK means pool with *random* access to volumes. You *cannot* backup to
SAN-shared random access volume. You can backup to SAN-shared sequential
access storage pool, i.e. filepool ! The latter is done through using
SANergy which now is part of ITSM for SAN.
So the answers are:
- you can create filepool on the SAN and backup clients there LAN-free.
- you can migrate from SAN-shared filepool to LTO (or other tape) pool.
However due to current single-threaded sequential-to-sequential pool
migration you can use one tape drive per stgpool only!! This might be a
big problem.
- simultaneous backup of multiple clients to same SAN-shared filepool is
possible and is limited by number of files/volumes defined to the pool
(scratch or not), mountlimit parameter of the SAN-file device class,
maxsessions server options and maxnummp settings of the nodes.
- the license required is IBM TSM for SAN (as of 27-th August) + IBM TSM
eXtended Edition. For companies which bought ITSM Enterprise Edition
during April-June 2002 their licenses for ITSM EE are equivalent to ITSM
XE + ITSM for SAN + ITSM for HSM for same number of processors.

Zlatko Krastev
IT Consultant






Kurt Beyers <kurt.beyers AT PANDORA DOT BE>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
09.10.2002 17:35
Please respond to "ADSM: Dist Stor Manager"


        To:     ADSM-L AT VM.MARIST DOT EDU
        cc:
        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.
>
>