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Re: Windows Server 2008 R2 - Disks layout for DCs in a forest

 
 
Meinolf Weber [MVP-DS]
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      11-28-2009
Hello The,

My default Windows Server 2008 R2 server install is using roundabout 11GB
diskspace until now with the latest updates. Windows Server 2008 with SP2
and the latest updates uses roundabout 10 GB. So i think even with future
SPs you will not reach 72 or 100 GB disk space.

Check this article about AD database file changes/problems within Windows
server 2008/2008 R2:
http://technet.microsoft.com/en-us/l...aspx#BKMK_Stop

More important that using different harddisks in my opinion is that you use
a tl east a mirrored drive in case one disk fails. Also it is recommended
that you store the Active Directory database and the SYSVOL shared folder
on the same drive.

Best regards

Meinolf Weber
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> Hi All
>
> Next week I'm going to install a Windows Server 2008 R2 x64 (
> well...obviusly :-) no x86 version out there ) for a Root and Child
> Domain Controllers in a 30 domains forest. I'll start with a new
> configuration and since the number of domain controllers is very high,
> we won't use a multidisk configuration.
> I mean: the Disk Layout will be made up by 2x146 disks for both
> Operating System and Active Directory Database (please, don't blame
> this decision, it's not my responsibility).
> My thought is:
> 2x 72 GB partitions C: and D: with this layout
> C: -> Windows + NTDS + SYSVOL
> D: -> Just the daily System State backups.
> Any suggestion on this? (consider that current NTDS.dit for the root
> global catalogs is just 200 MB).
> Any better layout?
> I was thinking that 72 GB could be too small for future service packs?
> Actually 64bit installations could be larger than 32bit ones, so maybe
> another layoud could be
> C: -> 100 GB
> D: -> 40 GB
> but I'm not sure about future
> (in any case if 40 GB is not enough in the future I could just buy new
> disks for backups, delete D: and resize C: to 146 GB)
> Any suggestion is appreciated
>



 
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