RAID question

[moneybags493]

is it possible to RAID 1 drives of different sizes? for example, two 1 TB drives with 1 2 TB drive, two 3 TB drives with a 6TB one, etc...

[WinNut]

It's possible, but in the first example only 1TB would be utilized of the 2TB drive.

[Never Summer]

You definitely can if you just ignore the extra capacity on the larger drive.  With a straight RAID 1 array you're going to get a total size equal to the size of the smallest drive in the array (1 TB or 3 TB for your examples).

 

You could try and do something weird like run an Intel RAID 0 or JBOD with the smaller two drives to combine them, and then put that in a mirrored array with the larger drive in Windows.  This is usually called a Hybrid Nested RAID 01.

 

The method I gave should work for any mobo that supports Intel RAID, but if you have the right board you might be able to do both within BIOS.

[Sandvich]

It can but I don't recommend it.