Thanks guys. I have decided to bite the bullet and change to 2TB disks now rather than go through all the effort using 1TB disks and then maybe changing in 6-12 months time or whatever. The price difference between 1TB and 2TB disks is marginal and I can always re-sell my 6x 1TB disks.
I think I have also narrowed down the raid config to these 4; 2x 7 disk raid-z2 with 1 hot spare - 20TB usable 3x 5 disk raid-z2 with 0 hot spare - 18TB usable 2x 6 disk raid-z2 with 2 hot spares - 16TB usable with option 1 probably being preferred at the moment. I am aware that bad batches of disks do exist so I tend to either a) buy them in sets from different suppliers or b) use different manufacturers. How sensitive to different disks is ZFS, in terms of disk features (NCQ, RPM speed, firmware/software versions, cache etc). Thanks -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss