> 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 would choose option 1. I have similar configurations in production. A hot spare can be very good when a drive dies while you're not watching. > 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). For a home server, it shouldn't make much difference - the network is likely to be the bottleneck anyway. If you choose drives with different spin rate in a pool/vdev, the lower ones will probably pull down performance, so if you're considering "green" drives, you should use that for all the drives. Mixing Seagate, Samsung and Western drives should work well for this. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
