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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? What other ZFS features depend on ZFS RAID ? Thanks, John |
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