As recently discussed on this list, after all ZFS does not care very much for the number of drives in a raidzN set, so optimization is not about stripe alignment and stuff but about number of spindles, resilver times, number of redundancy disks, etc.
In my setups with 4 identical drives in a server I typically made a 10-20Gb rpool as a mirror of slices on a couple of drives, a same-sized pool for swap on the other couple of drives, and this leaves me with 4 identical-sized slices for a separate data pool. Depending on requirements we can do any layout: performance (raid10) vs. reliable (raidz2) vs space (raidz1). HTH, //Jim 2011-06-16 0:33, Nomen Nescio пишет:
Has there been any change to the server hardware with respect to number of drives since ZFS has come out? Many of the servers around still have an even number of drives (2, 4) etc. and it seems far from optimal from a ZFS standpoint. All you can do is make one or two mirrors, or a 3 way mirror and a spare, right? Wouldn't it make sense to ship with an odd number of drives so you could at least RAIDZ? Or stop making provision for anything except 1 or two drives or no drives at all and require CD or netbooting and just expect everybody to be using NAS boxes? I am just a home server user, what do you guys who work on commercial accounts think? How are people using these servers? _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
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