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Single or Multiple RAID arrays (Spanned Drive)

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Hi,

We've just bought a Windows Storage Server 2008 R2 Server (Dell NX3100) with 12 x 3TB drives (and hardware RAID). I'd like to create a RAID-10 array which will be shown in Windows as one volume. I have two options:

  1. Create the RAID-10 array using all 12 of the disks which is then seen in Windows Disk Management as one disk and I create one large volume on this.
  2. Create three separate RAID-10 arrays (each of four drives) which Windows sees as three separate disks and create a spanned volume covering all three disks. I still get the single one large drive in Windows Explorer.

The reason I am thinking of going for the second option is RAID array rebuild times. If a drive fails in one of the four-drive arrays the rebuild time will be much faster than it would take to rebuild after a failed drive in the first option.

I can't see any reason why I shouldn't go for the second option but wanted to confirm that nobody could see any issues with this? Does creating a spanned volume in Windows 2008 over hardware RAID arrays create any complications?

Many thanks.


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