On Aug 3, 2007, at 8:29 AM, Tomas Ögren wrote: > On 03 August, 2007 - [EMAIL PROTECTED] sent me these 1,6K bytes: > >> When using an array's RAID schemes, what higher level ZFS >> features are not in play when ZFS Stripes/Concats are used without >> using >> any ZFS RaidZ or mirrors? >> >> I understand from >> http://www.opensolaris.org/os/community/zfs/faq/#hardwareraid >> >> that ZFS can only report errors but not correct them. I think ZFS >> still >> does copy-on-wite, and rollback on error - these are separate from >> RAID. >> >> Does ZFS round robin the writes across the LUNs when there is no ZFS >> RaidZ or mirrors in play? Or do all the writes go to the first >> LUN until it is full? > > Round-robin across all vdevs (single disk, mirror, raidz, raidz2) in a > pool.
That's good to hear. >> What other ZFS features depend on ZFS RAID ? > > Mostly the self-healing stuff.. But if it's not zfs-redundant and a > device experiences write errors, the machine will currently panic. Wow, this is certainly worse than the current VxVM/VxFS implementation. At least there I get I/O errors and disk groups get failed or disabled. -john _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
