Ok, if it helps, we're using iSCSI over Ethernet, on 1 Gbps connections, with 
about 900 users

-----Original Message-----
From: Ken Schaefer [mailto:[email protected]] 
Sent: Monday, March 14, 2011 9:00 AM
To: NT System Admin Issues
Subject: RE: Exchange Database -- VMDK or RAW?

Without knowing the parameters of your environment, this isn't really that 
useful. E.g. if you are using iSCSI over Ethernet, then it makes a big 
difference if you are using 1gbps vs 10gbps (depending on the environment 
size). If you only have 100 users, it doesn't matter if you are using VMDK vs 
RAW and iSCSI vs FC. If you have 100,000 users, it does.

Cheers
Ken

-----Original Message-----
From: Kim Longenbaugh [mailto:[email protected]] 
Sent: Monday, 14 March 2011 9:42 PM
To: NT System Admin Issues
Subject: RE: Exchange Database -- VMDK or RAW?

We use the MS iSCSI initiator to attach all the Exchange data and log drives.  
There have been no observable performance issues doing so in our environment.

Use Dell's "extpart.exe" for 2003, or the W2008 native "diskpart", we've been 
able to grow the drives on the fly when we needed to add space for some reason. 
 I know you can do the same with VMDK files, but don't have any experience with 
RAW drives.



-----Original Message-----
From: Jon D [mailto:[email protected]]
Sent: Monday, March 14, 2011 8:31 AM
To: NT System Admin Issues
Subject: Exchange Database -- VMDK or RAW?

For those who have your Exchange boxes inside of VMWare, did you put your 
databases inside VMDK files, or did you go RAW?
VMDK seems like it would be easier to manage, but I'm wondering about size 
issues, performance, etc.



Thanks,
Jon

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