To: MS-Exchange Admin Issues
Subject: Re: Exchange 2010 Migration Planning - Database Size?
The database size recommendations are based on your RTO. If you're
relying on tape backup, keep the DBs under 200GB. If you have more than
3 copies of your DBs in a DAG, than the size recommendations
We're trying to stick under 500GB per store. In the event DAG fails and we have
to go to tape, FCP LTO-4 can restore 500GB. It'd blow the RTO but really bad
stuff does happen.
From: Paul Hutchings [mailto:paul.hutchi...@mira.co.uk]
Sent: Tuesday, March 08, 2011 12:34 PM
To: MS-Exchange Admin
The database size recommendations are based on your RTO. If you're relying
on tape backup, keep the DBs under 200GB. If you have more than 3 copies of
your DBs in a DAG, than the size recommendations will grow. Read this
http://msexchangeteam.com/archive/2009/11/09/453117.aspx and download the
I've read documentation indicating a fine tuned deleted
item retention policy and an enforceable mailbox quota policy should be
considered when looking at DB sizing as well.
Disclaimer: I'm not an exchange expert and currently have 3 DB's all under
200GB each. Also, interested in how other admins
