Is there a way to do something like this?
zpool create newpool raidz /dev/disk1 /dev/disk2 ( /dev/disk3 + /dev/disk4 )
Assuming disk1 and disk2 are larger, and disk3 and 4 are smaller.
You can get the end result (presumably with a performance hit) by creating and mounting a pool with disk3 and 4, then creating a single large file on that, then doing
zpool create raidz /dev/disk1 /dev/disk2 /disk3and4/somebigfile
But I was wondering if that can be done directly.
I'm on Ubuntu.
Matt's comment is correct; I want to create a raidz of three devices: a disk, a disk, and (two disks mushed together to form a bigger disk).