On Thu, 23 Oct 2008, Peter Bridge wrote: > thanks for all the feedback. Some followup questions: > > If OS will see all 4 cores, will it also make use of all 4 cores for > ZFS. ie is ZFS fully multi threaded?
I am not sure about the ZFS compression code but from what I can see ZFS is multi-threaded like the rest of Solaris. If it was not multi-threaded then it would suck, and lots of Sun hardware would not succeed in the market. > We'll I'll do some more searching, maybe there is another quad core > board out there with 8 sata ports, 4GB ram support and passive > cooled north bridge :) On modern hardware, ZFS is not normally CPU limited (unless you enable compression or exotic checksums). There is not really a need for lots of CPU cores. AMD Athelon/Opteron dual core likely matches or exceeds Intel quad core for ZFS use due to a less bottlenecked memory channel. These should be your priorities for NAS: * 64 bit CPU * ECC memory support * Lots of memory (>4GB if possible) * Enough SATA/SAS ports to satisfy storage reqirements. Bob ====================================== Bob Friesenhahn [EMAIL PROTECTED], http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
