Mike, Please post this sort of query to zfs-discuss (rather than zfs-code). zfs-code is a development discussion forum.
Without any form of replication that zfs knows about (RAIDZ or mirrors), there is no way for ZFS to fix up data errors detected in a scrub. RAID5 LUNs just look like normal device LUNs to ZFS. Since we always store meta-data replicated, we *will* be able to fix meta-data errors. A scrub may still be useful to you, however, as it will identify any data that has checksum errors (that you can then repair by hand if you have backup copies). -Mark Mike wrote: > I'm building a system with two Apple RAIDs attached. I have hardware RAID5 > configured so no RAIDZ or RAIDZ2, just a basic zpool pointing at the four > LUNs representing the four RAID controllers. For on-going maintenance, will a > zpool scrub be of any benefit? From what I've read with this layer of > abstration ZFS is only maintaining the metadata and not the actual data on > the drives. What's the best practice to keep the data healthy? (scrub, > import/export, etc..) Also, where are the replicas of the metadata stored in > this configuration? Can that be backed up? > > Thanks. > -- > This messages posted from opensolaris.org > _______________________________________________ > zfs-code mailing list > zfs-code at opensolaris.org > http://opensolaris.org/mailman/listinfo/zfs-code
