Originally Posted By: drakino
One thing that does annoy me about RAID is the absolute need for matched drives.


That has never been a requirement for Linux software RAID.

EDIT: Oh, I see that the original claim (above) has now been retracted, and replaced with an I don't understand how RAID works complaint. wink Fair enough.

To use different size allocations on different stripes of a RAID violates the concept. But you can do it on Linux if you really want to. This requires a translation layer between the RAID and the devices, to shuffle blocks between "devices" so that they all end up with similar stripe allocations.

That software layer is called "LVM" (or LVM2) on Linux.

Cheers