[The Real Vik]

Hello folks,
I searched the FAQ and couldn't find my answer so hoping to give it a go with a new thread.

I setup my Mac Pro with a data drive in a mirrored RAID setup. This drive just has my photos, songs, etc. It is not the bootable drive. Unfortunately, this drive has run out of space so I need to upgrade the set of drives to a larger capacity.

Can I just remove the one drive, upgrade it with a larger capacity, wait for the drive to rebuild, then upgrade the other drive and wait for it to rebuild and be all set? I've read that I might need to ghost the drive or something but think that may only be for a bootable drive. Again, OSX is on another drive altogether.

Thanks for the help people. Hopefully this is a pretty simple question that people can punch out an answer to pretty easily!

[reader50]

You could do it the way you outline, but the RAID volume would come out the same size. You'd need to use a partition editing tool to expand the RAID volume afterwards, so it used the full size of the new drives.

Alternative: plug in your two new (bigger) drives, mirror them, copy data across from the old set. Then ditch the old drives, or reuse them as you desire.

[Doc HM]

Since you are only mirrored you can break the raid, leaving you with two single duplicated drives. Buy two larger drives, set them up as a mirrored raid and clone one of the old raided drives onto it. But since you can fit 4 drives into your MacPro I'd just do what reader50 says.