On Fri, March 26, 2010 14:25, Malte Schirmacher wrote: > Bob Friesenhahn wrote: > >> Except that ZFS does not support RAID0. I don't know why you guys >> persist with these absurd claims and continue to use wrong and >> misleading terminology. > > What is the main difference between RAID0 and striping (what zfs really > does, i guess?)
RAID creates fixed, absolute, patterns of spreading blocks, bytes, and bits around the various disks; ZFS does not, it makes on-the-fly decisions about where things should go at some levels. In RAID1, a block will go the same physical place on each drive; in a ZFS mirror it won't, it'll just go *somewhere* on each drive. In the end, RAID produces a block device that you then run a filesystem on, whereas ZFS includes the filesystem (and other things; including block devices you can run other filesystems on). -- David Dyer-Bennet, d...@dd-b.net; http://dd-b.net/ Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/ Photos: http://dd-b.net/photography/gallery/ Dragaera: http://dragaera.info _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
