> Why would the customer need to use raidz or zfs > mirroring if the array > is doing it for them? As someone else posted, > metadata is already > redundant by default and doesn't consume a ton of > space.
Because arrays & drives can suffer silent errors in the data that are not found until too late. My zpool scrubs occasionally find & FIX errors that none of the array or RAID-5 stuff caught. This problem only gets more likely as our pools grow in size. If the user is CHEAP and doesn't care about their data that much then sure, then run without ZFS redundancy. The metadata redundancy should at least ensure your pool is online immediately and that bad files are at least flagged during a scrub so you know which ones need to be regenerated or retrieved from tape. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
