details you may not know - Transition from Exchange 2003 to Exchange 2010
If you are an IT guy of a small company ( 5 - 50 people), and need to upgrade your Exchange 2003 to Exchange 2010, this document is a very good guide:
http://msexchangegeek.com/2010/01/30/rapid-transition-guide-from-exchange-2003-to-exchange-2010/
However, this document, also almost all of online guides, did not mention some details of transition from Exchange 2003 to Exchange 2010. Maybe for an experienced Exchange Administrator, those are just common sense, but, for small company's IT guys, those might become nightmares.
Think carefully before you install Exchange 2010.
1. Moving mailboxes spend too much time, the speed is about 3G/hour. A 20 people company with 60G data in Exchange 2003 spend almost one whole day.
2. When moving begin, incoming email will stay in queue, not deliver to mailbox, until moving mailboxes has finished.
3. McAfee might delete mailbox log files, and made mailbox database dismounted. This is my biggest nightmare before I figured it out.
4. Exchange 2010 uses about 4 times more space than Exchange 2003, and, if free space too low (< 5G), exchange will stop receiving incoming emails.
Therefore, when you plan to upgrade exchange server, be very careful. Email service is essential for businesses. Do not screw it up.
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"4. Exchange 2010 uses about 4 times more space than Exchange 2003,"
ReplyDeleteit sure be: " Exchange 2010 uses about 4 times more space than Exchange 2003 during moving mailbox." because there are database and logs.