On Mon, 15 Mar 2004 12:12:24 -0600
"Ochs, Duane" <Duane.Ochs AT QG DOT COM> wrote:

> Having used both products and using the TSM version extensively, I would
> say that three days recovery for a mail message or mail box is
> inexperience with the product or not having a proper DR/recovery system in
> place. It is recommended to have multiple standby servers for just these
> types of issues,

multiple standby servers??? ok, big environments might justify such an
approach, this environment justifies having one cold-standby that could be
configured to do several things depending on what is needed. Multiple
stand-by servers would be a doubling of the number of servers in use,
requireing about twice as many people to maintain them as well...

> even with single infostores up to 30 - 40 GB, we have recovery time down
> to 5 hours for even as granular as single mail messages or calendar
> entries.
>

5 hours for a single message? Hmm, seems like an expensive message to me.

> For me the IS method of backups is the lesser of two evils, Shorter backup
> longer individual restore, also very handy in the event of a total
> failure.
>
> Duane
>
> -----Original Message-----
> From: Remco Post [mailto:r.post AT SARA DOT NL]
> Sent: Monday, March 15, 2004 11:49 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: veritas backup exec client and TSM server
>
>
> On Mon, 15 Mar 2004 12:09:54 -0500
> Richard Sims <rbs AT BU DOT EDU> wrote:
>
> > >The ability to perform a mailbox backup or restore using backup exec
> > >has been around since version 7.0 or earlier, that is at least 5 years.
> > ...
> >
> > Indeed.  IBM periodically gets darts when another vendor implements a
> > database backup/restore capability not in TSM.  As you'll find in the
> > List archives, IBM explains that they adhere to the standards and
> > facilities provided by the db providers, which is the safe approach.
>
> Which may be true, but then let IBM come over here and explain to us why
> our users should wait for approx 3 days for simply restoring one
> mail-message, while other products achieve this in several minutes. I know
> IBM hides behind published interfaces, IBM should be able to push MS to
> publish the required interface descriptions.
>
> > Another vendor may implement something which departs from such
> > standards and facilities, at some cost and risk.  Those vendors may
> > not fully describe the details of their approach for you to evaluate
> > the long-term suitability of the approach, which a customer would
> > bet their data on.  Always keep in mind that such approaches are
> > subject to disruption as the third party who engineers the database
> > system changes things over time.
> >
>
> Another vendor apperantly has better connections with Microsoft to be able
> to provide the restore requirements that meet common-sense standards. The
> overhead of having to restore an entire mail database for just one
> mailmessage is to big to be justified. Using exmerge as a backup tool
> sucks big time, and requires more than 2 times the diskspace occupied by
> the mail db, just to be able to back it up. Currently TSM just lacks in
> options and is expensive to use in an exchange environment.
>
> >    Richard Sims
>
> But still, I have no answer to my experiences question, which is more
> important to me than IBM politics.
>
> --
> Met vriendelijke groeten,
>
> Remco Post
>
> SARA - Reken- en Netwerkdiensten                      http://www.sara.nl
> High Performance Computing  Tel. +31 20 592 8008    Fax. +31 20 668 3167
>
> "I really didn't foresee the Internet. But then, neither did the computer
> industry. Not that that tells us very much of course - the computer
> industry didn't even foresee that the century was going to end." --
> Douglas Adams


--
Met vriendelijke groeten,

Remco Post

SARA - Reken- en Netwerkdiensten                      http://www.sara.nl
High Performance Computing  Tel. +31 20 592 8008    Fax. +31 20 668 3167

"I really didn't foresee the Internet. But then, neither did the computer
industry. Not that that tells us very much of course - the computer industry
didn't even foresee that the century was going to end." -- Douglas Adams