Hmm.. Thanks for the input. I want to have the most space but still need a raid in some way to have redundancy.
I've added it up and found this: ggendel - your suggestiong makes me "loose" 1TB - Loose 250GBx2 for the raid-1 ones and then 500GB from a 3x500GB = 1TB bonwick - your first suggestion makes me "loose" 1TB. The second 750GB. The third, still 750GB but I gain 500GB more, since I know only loose 1/3 of 1500 instead of 1/2 of 1000. ggendel - yeah I know you would degrade both pools, but you would still be able to recover, unless our good friend Murphy comes around in between, as I would expect him to :-/ So, as bonwick said - let's keep it simple :) No need to make it very complex. How is SATA support in OpenSolaris these days. I've read about ppl saying it has poor support, but I believe it was blogs and suchs from 2006. I downloaded the Developer Edition yesterday. I can have 10 SATA disks in my tower (8 onbord sata connections and 2 from a controller card). Why not fill it :) I made a calculation, buying 1x500+3x750, 4x750 or 4x500 disks. The price/GB doesn't differ much here in Norway. Option 1 - Buying 4x750GB disks: 4x250 RaidZ - 750/250 (Raid size/lost to redundancy) 2x500 Raid1 - 500/500 4x750 RaidZ - 2250/750 Equals: 3500/1500 (3500GB space / 1500GB lost to redundancy) Cost: 4x750 costs NOK6000 = US$1100 Option 2 - Buy 1x500 + 3x750 4x250 RaidZ - 750/250 3x500 Raid1 - 1000/500 3x750 RaidZ - 1500/750 Equals 3250/1500 1x750 costs NOK 1500 = US$ 270 3x500 costs NOK 3000 = US$ 550 Total US$ 820 Option 3 - Buying 4x500GB disks: 4x250 RaidZ - 750/250 6x500 Raid1 - 2500/500 Equals: 3250/750 Cost: 4x500 costs NOK4000 = US$ 720 Option 2 is not winning in either cost or space, so thats out. Option 1 gives me 250GB more space but costs me NOK 2000 / US$ 360 more than option 3. For NOK 2000 I could get two more 500GB disks or one big 1TB disk. Obviously from a cost AND size perspective it would be best/smart to go for option 3 and have a raidz of 4x250 and one of 6x500. Comments? This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
