On Mon, Feb 22, 2010 at 3:35 PM, Nick Whalen
<[email protected]> wrote:
> Tom Limoncelli wrote:
>> One point of concern:  Can you Exchange server handle the very large
>> mail boxes that people may have accumulated on the Google Apps
>> accounts?   If you run out of space on Exchange it could make for some
>> unhappy users (and sysadmins).  You might want to migrate only
>> designated folders, or not migrate any data, just have new email go to
>> their Exchange inbox and let them retain their Google Apps account for
>> a year.
>>
> This is definitely a point of concern, both for me and the Ops group.
> The Exchange server sounds like it's old, and wheezy, so I'm concerned
> about large IMAP copies bringing the thing to its knees. I'm not sure
> what mailbox database storage pool looks like, information is still
> feeding into me atm. Unfortunately most of my users are not very
> technically inclined and as a result deem all their e-mail 'critical'
> (And I don't have time to help 25 people sort through 1-7GB of mail
> per-box :)). Selective moves aren't much of an option in this case I'm
> afraid.

Do the math, see how much disk space they'll need, and ask them to
provide it.  (better yet, provide a spreadsheet with username and
mailbox size).  They want the conversion, they should understand what
they've asked for.

Tom

-- 
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       New Brunswick, NJ, May 7-8, 2010 -- http://picconf.org

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