Well, the disadvantage of having to check the index on every single file you
want to back up to see if it already exists elsewhere is speed. Can you even
imagine trying to do a restore in that scenario? You'd be taking one tape for
the base OS, another tape for *each* application in program files, another for
service packs, then more tapes for individual files. That's getting back to
IBM's "Incremental forever" monster.
Sounds like a great backup product - you'd cut tape usage and disk usage for
backups tremendously. Recovery on the other hand........... However, I've
also heard from someone else who deals with multiple backup products that
CommVault "just works."
Btw, from what I understand, MS best practice is to set Exchange's own
retention policy for deleted emails to a month or similar, then recover deleted
emails from there before going to backup. If you're specifically looking for
email archive, then EmailXtender is the way to go from a Legato standpoint
(though having no experience of it I can't recommend one way or the other). No
idea about AD or SQL - not my forte.
Cheers,
Stuart.
________________________________
From: Legato NetWorker discussion on behalf of Alex Kay
Sent: Thu 03-Aug-06 04:13
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] CommVault vs NetWorker
> -----Original Message-----
> From: Legato NetWorker discussion
[mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
> On Behalf Of Oscar Olsson
> Sent: Tuesday, 1 August 2006 4:15 PM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: Re: [Networker] CommVault vs NetWorker
>
> On 2006-07-31 14:27, Ballinger, John M revealed:
>
> BJM> Anyone out there using/used CommVault.
> BJM> We are currently using NetWorker but are considering moving to
> BJM> CommVault.
> BJM> I'm still learning about it but apparently it has no command line
> BJM> interface.
>
> We are the initial stages of doing such an evaluation. Since we know
> networker inside out, but got lost in the commvault GUI, I can't say
for
> sure, but we have specifically asked for this, and to my very limited
> knowledge, most if not all can be done from CLI, although it might be
a
> windows CLI..
>
> Either way, I'm interested in almost all information on this topic
that
> people can share. Feel free and CC me if you respond off-list to the
> original email. :)
>
> //Oscar
>
We had a demo of CommVault a while back and, in a Windows environment,
it has a number of out of the box advantages over Networker. In
particular is the ability to do item level restores from normal backups
of AD, Exchange (no need to do brick level backups) and SQL Server. If
you've ever had to deal with restoring these type of things it is a BIG
plus in CommVault's favour.
Also, if a file exists on multiple machines (like the OS for example) it
only needs to backup one copy of the file and then uses pointers to
reference the file on other machines. However, I don't recall much on
it's Unix/Linux capabilities as we were not really into that platform at
the time, but now are moving into it quite quickly.
We will likely be having a closer look at it at some point, so I too am
interested in what others have to say...
Alex
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