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Exchange 2007 ->2010 mailbox disk size

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Exchange 2007 ->2010 mailbox disk size - 27.Jan.2010 10:30:17 AM   
pdsavard

 

Posts: 72
Joined: 15.Sep.2003
From: Canada
Status: offline
Hi, I currently have one Exchange 2007 installed in a VMWare server. I whant to migrate to 2010, i will create another Virtual Machine with windows 2008 RC2 and install exch 2010 on it. The current exch2003 have a SAN Lun of 100G uses for the information store and another 50G LUN for the log part. The current mailbox database size is 48G.

If I "share" de the disk for the mailbox store between the 2 exch serveur, when I will move mailbox the mailbox, does the old exch will free up disk space over night? I think I will move 10 mailbox at the time, wait for the free up disk space occurd then move 10 others mailbox...

Another question, 40G for the system disk of exchange it is enough?

thanks
Post #: 1
RE: Exchange 2007 ->2010 mailbox disk size - 27.Jan.2010 2:20:49 PM   
jveldh

 

Posts: 2335
Joined: 12.Apr.2008
From: The Netherlands
Status: offline
Hi,

Don't share the volume with multiple servers just create a seperate volume both the log and database for the new server if possible. You can limit the amount of space used by logging by enabling circular logging during the migration.

40 GB for the systemdrive should be enough I normally create a 25 - 30 GB disk for the systemdrive if possible.

_____________________________

Best regards,

Johan Veldhuis

Visit my Exchange blog

(in reply to pdsavard)
Post #: 2
RE: Exchange 2007 ->2010 mailbox disk size - 27.Jan.2010 2:48:32 PM   
pdsavard

 

Posts: 72
Joined: 15.Sep.2003
From: Canada
Status: offline
Thanks for fast response, I will share log and DB space only for the migration process, I will remove the old exchange 2003 after migration complete. I will check for circular logging, but if I move a 4G mailbox, The new Store will grow approx. 4G, but the old store will not shrink of 4G ? Do I need to invoke a shrink command or something like that?

For the VM size, my current Exchange 2003 server have a size of 25G, but after 1.5 years and after some windows update i only have 3.5G left. Maybe 30G will be enough..

(in reply to jveldh)
Post #: 3
RE: Exchange 2007 ->2010 mailbox disk size - 27.Jan.2010 4:28:35 PM   
jveldh

 

Posts: 2335
Joined: 12.Apr.2008
From: The Netherlands
Status: offline
Hi,

No a shrink command should not be necessary since you will create a new database which is not fragmented.

_____________________________

Best regards,

Johan Veldhuis

Visit my Exchange blog

(in reply to pdsavard)
Post #: 4

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