On Mon, Feb 22, 2010 at 4:36 PM, Brian Mathis <[email protected]> wrote: > On Mon, Feb 22, 2010 at 4:27 PM, Tom Limoncelli <[email protected]> wrote: >> >> 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 > > > Seems that most replies have missed this piece of information from the > original message: > Methods that would produce a PST file of the > GMail mailboxes would also be heartily welcomed, as > it would appear Ops would like to keep the old mail > off of the Exchange storage group and on the local user's machine. > > It's always a good idea to know you're requirements, but in this case the > disk on the Exchange server is not an issue. > > For a migration like this, you need to do everything wholesale. Move all > messages to the new solution and cut ties to the previous one. It would > create more headaches and user confusion later on if some mail is left at > gmail and other mail is on exchange.
I understand the need to prevent that confusion. In that case, I would recommend converting people one per day until the process is perfected. Find the least risk adverse person and start there. Tom _______________________________________________ Tech mailing list [email protected] http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
