Hello Ernst, Tuesday, June 20, 2006, 12:32:55 AM, you wrote:
ERj> Hello ZFS forum, ERj> I'm curious about ZFS and read a bit about it, though still have a few open questions. ERj> I'd like to have both ... ERj> - a pooling of harddisk space (like LVM in Linux) and ERj> - integrated data redundancy & possibly speedups (something like RAID-5) ERj> RAID-Z seems to provide that, if I'm correct? yes. ERj> With RAID-Z ... ERj> 1) is it possible to use differently-sized disks in raidz? ERj> They're often the same brand, speed, type and generation, just different sizes. Yes, you can but maximum common size of all disks in one raidz group will be used. You could however group disks with equal sizes in raidz groups and stripe between them in one pool. ERj> 2) is it possible to easily add (-> more available space) and ERj> remove (as to replace them) disks to/from a RAID-Z device (if that's the right term)? you can add disks to a raidz pool but it won't actually grow stripe width and in order to preserver redundancy you will have to add at least pairs of disks. You can't remove a disk from a pool (except submirrors) - at least yet. Additionally to raid-z (aka raid-5) you can use raidz2 (aka raid-6), mirroring (raid-1), striping (raid-0) and a combination of striping and mirroring or raidz. -- Best regards, Robert mailto:[EMAIL PROTECTED] http://milek.blogspot.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
