> 1. In zfs can you currently add more disks to an existing raidz? This is > important to me as i slowly add disks to my system one at a time.
No, but solaris and linux raid5 can do this (in linux, grow with mdadm). > 2. in a raidz do all the disks have to be the same size? I think this one has been answered, but I'll add/ask this: I'm not sure what would happen if you had 3x 320gb and 3x 1tb in a 6 disk raidz array. I know you'd have a 6 * 320gb array, but I don't know if the unused space on the 3x 1tb could be made into another raidz array. If zfs is limited in this way, you could work around it by making 320gb and 1tb-320gb partitions on the 1tb disks. FYI, if you have some data that doesn't really need to be redundant, you can simplify your setup with block copies and maybe get closer to raidz efficiency than a straight mirror. Then you could easily replace any disk any time with a bigger one, or add a disk any time. To do this, just make one file system with copies=2 and store important stuff there. Store less important stuff in a copies=1 file system. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
