Preface: Going from Windows 2003 R2 to Windows 2008 R2 domain ( X64),
new Domain Controllers are going to be virtual ( ESX 4.x) all but one. 

I saw the following article from the Active Directory team about best
practices and recommendations 
http://blogs.dirteam.com/blogs/sanderberkouwer/archive/2007/02/09/active
-directory-on-separate-volumes.aspx

I also saw the same recommendations in Miansi book, in splitting the
sysvol/transaction Logs on separate Luns. 

Basically
OS C:\
SYSVOL\NTDS.DIT ( D:\)
Transaction Logs: E:\

Is anyone else doing this out there for a forest of less than 20K in
users, and probably less than 100K in objects? 

Only issue I could see is usually we store additional virtual disks with
the .VMX file which means they would be on the same SAN LUN, which would
basically negate the benefit of splitting the IO and files on different
disks in the virtual land.  On the physical server I could go with 3
RAID 1 arrays and put each section on that accordingly. 

Thoughts,  I am interested in hearin what others are doing, to increase
the performance in there R2 AD environments. 

Z

Edward E. Ziots
CISSP, Network +, Security +
Network Engineer
Lifespan Organization
Email:[email protected]
Cell:401-639-3505


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