On Thu, 14 Feb 2008, Tim wrote: > > If you're going for best single file write performance, why are you doing > mirrors of the LUNs? Perhaps I'm misunderstanding why you went from one > giant raid-0 to what is essentially a raid-10.
That decision was made because I also need data reliability. As mentioned before, the write rate peaked at 200MB/second using RAID-0 across 12 disks exported as one big LUN. Other firmware-based methods I tried typically offered about 170MB/second. Even a four disk firmware-managed RAID-5 with ZFS on top offered about 165MB/second. Given that I would like to achieve 300MB/second, a few tens of MB don't make much difference. It may be that I bought the wrong product, but perhaps there is a configuration change which will help make up some of the difference without sacrificing data reliability. 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
