> I'm about to build a fileserver and I think I'm gonna > use OpenSolaris and ZFS. > > I've got a 40GB PATA disk which will be the OS disk, > and then I've got 4x250GB SATA + 2x500GB SATA disks. > From what you are writing I would think my best > option would be to slice the 500GB disks in two 250GB > and then make two RAIDz with two 250 disks and one > partition from each 500 disk, giving me two RAIDz of > 4 slices of 250, equaling to 2 x 750GB RAIDz.
Why not do it this way... Pair the 250GB drives into a 500GB Raid-1 and then use these in the RAID-Z configuration? I would think that this setup would have no less performance than a Raid-Z using only 500GB drives. However, you'll have to ask someone for the zfs command magic to do this. Off the top of my head, I'm not sure. > How would the performance be with this? I mean, it > would probably drop since I would have two raidz > slices on one disk. > > From what I gather, I would still be able to lose one > of the 500 disks (or 250) and still be able to > recover, right? Right, but then if a 500GB drive fails you degrade both pools. > > Perhaps I should just get another 500GB disk and run > a RAIDz on the 500s and one RAIDz on the 250s? That sounds even better. > I'm also a bit of a noob when it comes to ZFS (but it > looks like it's not that hard to admin) - Would I be > able to join the two RAIDz together for one BIG > volume altogether? And it will survive one disk > failure? No, these would be two separate pools of storage. Gary This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
