4

I have 2 146GB(146,8 in ORCA) sas drives and 2 72GB(73,4 in ORCA) sas drives. I would like to setup raid 1+0 with these 4 drives. Is it possible to combine the 146GB and the 72GB drives so I get 218GB?

When I try to setup the raid I only get 136,7GB.

3

NOPE.

If you're attempting RAID 1+0 with different sized disks, the lowest-common denominator becomes your base unit size. So your 146GB disks will be treated as 72GB devices.

4 x 72GB disks in RAID 1+0 == 144GB usable.

If you need more capacity, buy bigger disks.

1

only possible way how you can get whole capacity is setup 2 raid-1 arrays (one 146GB and second 72GB) and make software jbod raid across those arrays. But you will loose performace boost given by raid-0.

1
  • Thanks, but I already thought about this.
    – Jan Wytze
    Oct 9 '16 at 17:27

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.