Yes I have tested this virtually with vmware. Replacing disks by bigger ones works great. But the new space becomes usable only after replacing *all* disks. I hoped that new space will be usable after replacing 3 or 4 disks.
I think the best strategy for me now is buying 2 x 750 GB Disks and using a mirrored setup. When the storage is full i'll buy 2 new disks and concat the mirrored vdevs. At the end when 8 disks are full (4 x 750GB), i will switch the layout to raidz and have 7x750 GB available. I'll have to copy the complete data to another disk-storage, but that is ok for me. Perhaps zfs will even permit changing storage-layout from mirror to raidz in the future ... This should the best working low-cost strategy for me now. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss