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Partition and RAID

  • NAS / RAID
  • Western Digital
  • Caviar
  • Hard Drives
  • Storage
Last response: in Storage
February 1, 2012 8:15:41 AM


I'm planning to buy a WD Caviar Black 2TB hard drive and WD Caviar Green 2TB hard drive.

I'm planning to put them in a RAID 1 configuration, however I also want to partition them.

What I want to happen is to use the Caviar Black (partitioned for OS and Data) as the main drive and the Caviar Green as the mirrored drive.

Is it possible to do this?


More about : partition raid

a c 415 G Storage
February 1, 2012 10:54:26 AM

It's possible, but probably not advisable because the green drive will drag down the performance of the RAID set. If you want performance use two black drives. If you want low power / low heat dissipation, use two green drives.

...but using green drives for the OS will hurt performance.
February 1, 2012 12:32:35 PM

I see.. assuming that i use 2 black drives. is it possible to partition both drives and put them in raid 1. like disk 1 partition A is mirrored by disk 2 partition A and disk 1 partition B is mirrored by disk 2 partition B?

if i use a black and a green drive and put them in raid 1, the green drive will become the bottleneck, is this correct?
a c 415 G Storage
February 1, 2012 6:04:11 PM

You RAID the disk first, and then you partition it. So if you buy two 1TB drives and put them into a RAID 1 set, when you go to partition the drive (either as part of the Windows installation or via Disk Management for an already-installed system) you'll see what appears to be one 1TB drive.

And yes, in a RAID set with a black and a green drive the green drive will be a bottleneck.