On Sun, May 25, 2008 at 1:27 AM, Erik Trimble <[EMAIL PROTECTED]> wrote: > If there are more than 1 vdev in a pool, the pool's capacity is > determined by the smallest device. Thus, if you have a 2GB, a 3GB, and a > 5GB device in a pool, the pool's capacity is 3 x 2GB = 6GB, as ZFS will > only do full-stripes. Thus, there really is no equivalent to > Concatenation in other RAID solutions. Not true. If you have a mirrored or a raidz vdev, then the size of that vdev is determined by the size of the smallest disk, but if you have multiple vdevs the size of the pool is the sum of the size of the vdevs. I have two pools off the top of my head that illustrate this: one with 3*120 and 1*200 that has ~550GB capacity, and one with 8*320 raidz and 8*500 raidz that has 4.47TB capacity.
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