OK, I have been reading a bit more and I think I can answer some of these questions. For those interested, read page 55 of the Solaris ZFS Administration Guide.
Q4: "Replace a disk or disks in an existing mirrored configuration as long as the replacement disks are greater than or equal to the device to be replaced." Q1: Considering you can add more mirrored virtual devices to the pool as you go, I am thinking that adding the drives as 2 by 2-way mirrors makes more sense. I think this would make it easier to move them as well, cause you just add a new 2 by 2-way mirror with 2 bigger drives and migrate the old mirror to it. That said, I am still not 100% sure about the differences between Option 1 & 2 below. Both have two parity bits, so they effectively provide the same level of protection (assuming RAIDZ does a good job of spreading the data around). Disk space is the same. Not sure about performance or manageability though ... Option 1: One four-way RAID-Z2 configuration Option 2: Two two-way mirrors using dynamic striping This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
