Hi mark,
We use the Exchange agent for backing up around 800GB of Exchange DBs with
netbackup 6.5.x (so passive node backups).
The Exchange agent does allow for incremental backups however we found that we
would often get partially completed backups and therefore do a full backup
every night, since in my book a successful full backup at 800GB is better than
a risky incremental. With these backups we are getting around 45MB/s to LTO4
drives.
We don't do individual mailbox backups as they are just far to slow for around
4500 mailboxes.
Regards,
Brendan Clover
Information Technologist
Systems Infrastructure
University of South Australia
Phone: +61 8 830 23641
Fax: +61 8 830 25800
Log your own service calls here: http://www.unisa.edu.au/helpdesk
AskIT documentation and FAQs: http://www.unisa.edu.au/askit
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-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Wayne T
Smith
Sent: Tuesday, 21 July 2009 4:16 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Exchange Agent
Hi Mark,
I have 2 much smaller Exchange servers (120GB & 200GB) and use the NBU
Exchange agent (still v5.1 for the moment).
I find the agent does as well pushing data as a small-file-count file
system backup (i.e., very well!), with differential incrementals being a
bit slower ... maybe half-speed, but even my active Exchange server
changes only about 2% per day. (So incremental backup times are a big
win here).
"Mailbox" backups were unbelievably slow and error prone (terminations
as well as never ending backups); think of mismatched network adapters
and then slow down some more. :-(
Cheers, Wayne
Donaldson, Mark wrote, in part, on 2009-06-15 2:07 PM:
>
> Hi all,
>
> We're using the Netapp "Snapmanager for Exchange" software to make
> Exchange backups right now. We use it to quiesce Exchange in some way
> and create a Netapp snapshot of the drives. Those drives are mounted
> to another NT server and backed up as drive letters.
>
> The upshot of this is that every day we backup the entire 1.4 TB
> Exchange database.
>
> I'd like to get out of this business.
>
> Can you folks using the NB Exchange Agent let me know the quickie
> details of how it works (can I do incrementals?) and how it's working
> out for you?
>
> -M
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
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