Please let me know that what is the recomended no of Mailboxes that can be created in a single Storage group in Exchange 2003.

On Mon, 29 Nov 2010 04:20:12 +0000, Dev Ranjan [Exchange Specialist] wrote: >Please let me know that what is the recomended no of Mailboxes that can be created in a single Storage group in Exchange 2003. That would depend on the number of IOPS per mailbox and the abilityof your storage system to accompodate the I/O workload. Another thing to consider is the size of the datgabse and your ability to make a backup within a reasonable amount of time and what your recovery goals are. IOW, can you expect to restore a backup in the time alloted in your SLA? --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

Dear Rich, You are correct on your part. The only thing I want to know is that do Microsoft have some sort of recomendations for the limit of Milboxes in storage of 2003 as it has for the 3007 or not, and if yes then what's that. Definitely every organization plans for the recovery within stepulated SLA but then too we should be knowing the recomendations from Microsoft as well. Thanks..

Hi, The following article could be useful for you: Mailbox Server Storage Design http://technet.microsoft.com/en-us/library/bb738147(EXCHG.80).aspxPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Thanks Gen Lin-MSFT

Hi, Recomamnd less than 4000 mailboxes in each server. No limitation for the mailbox storage. The following articles could be useful for you: Optimizing Storage for Exchange Server 2003 http://technet.microsoft.com/en-us/library/bb125079(EXCHG.65).aspx Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Thanks Gen Lin-MSFT

On Mon, 29 Nov 2010 05:26:51 +0000, Dev Ranjan [Exchange Specialist] wrote: >You are correct on your part. The only thing I want to know is that do Microsoft have some sort of recomendations for the limit of Milboxes in storage of 2003 as it has for the 3007 or not, and if yes then what's that. Definitely every organization plans for the recovery within stepulated SLA but then too we should be knowing the recomendations from Microsoft as well. The number of mailboxes is truely not a concern. You can 10,000 mailboxes in the only database on the server if only several thousand of them are connected to at a time. I wouldn't recommend doing that, though. IOPS are your guide to database design. --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

Thanks Gen and Rich for your prompt support. That means it totally depends upon the required mailboxes. Thanks again to both of you.