I'm not sure how you can expect it to retain SIS? The new mailbox move is basicly an automated EXMERGE. When we started our conversion we had about 2000 accounts on one clustered Exchange 5.5 server and the Pub EDB was at about 30Gig. We moved to a 2 node Exchage 2000 cluster with 3 storeage groups and 13 mailbox databases. After the move the mailbox databases took up about 80Gig. When moving a mailbox the process can't tell if an item linked to the user has already been moved to the new database and it can't leave the link pointing to the original item which is now in a different database from the users new mailbox so it has to copy everything over and thus lose SIS.
My understanding of the process after converting our companies 2000 users from Exch 5.5 to E2K. 1) Find the selected mailbox. 2) Create a new mailbox on the server/database selected by the admin 3) Copy all items linked to the original mailbox to the new mailbox. 4) Verify everything copied over ok. 5) Update AD to point the account to the new mailbox and start replicating the security changes. 6) Delete old mailbox. Of course, I could be wrong and the steps above may not be all of them or in the excact order but it's what I observed upgrading our servers. Rod Leonard Webmaster, Groupware Systems Administrator Swagelok Information Services "I love deadlines. I like the whooshing sound they make as they fly by." - Douglas Adams -----Original Message----- From: John Matteson [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 20, 2001 12:53 PM To: MS-Exchange Admin Issues Subject: RE: single instance storage retention on mailbox move Depends on how you move the mail box. If you use "MOVE MAILBOX" in Exchange admin, then I believe that you do retain SIS, but you lose any mail that was in the user's "Deleted Items Retention" area of the Information Store. If you use EXMERGE to move the mail, they you loose SIS. John Matteson; Exchange Manager Geac Corporate Infrastructure Systems and Standards (404) 239 - 2981 With sufficient thrust, pigs fly just fine. - RFC 1925 -----Original Message----- From: Andrew Goddard [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 20, 2001 7:42 AM To: MS-Exchange Admin Issues Subject: single instance storage retention on mailbox move Hello, We're upgrading from Exchange 5.5 to 2000 soon, and I just wanted to check something with everyone who's done it before. I'm planning to install a new server and then move the existing mailboxes across to it. Is single instance storage retained on the new server for all the moved mailboxes? I've already checked on the MS website and the following article says it will be: Store Does Not Grow When Moving Users to Another Server (Q175481) But just wanted to double check with someone who's already done it. Thanks, Andrew. List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm
