> > The server is a Fujitsu RX300 with a Quad Xeon 1.6GHz, 6G ram, 8x400G > > SATA through a U320SCSI<->SATA box - Infortrend A08U-G1410, Sol10u8.
> slow disks == poor performance > > Should have enough oompf, but when you combine snapshot with a > > scrub/resilver, sync performance gets abysmal.. Should probably try > > adding a ZIL when u9 comes, so we can remove it again if performance > > goes crap. > A separate log will not help. Try faster disks. We're seeing the same thing in Sol10u8 with both 300gb 15k rpm SAS disks in-board on a Sun x4250 and an external chassis with 1tb 7200 rpm SATA disks connected via SAS. Faster disks aren't the problem; there's a fundamental issue with ZFS [iscsi;nfs;cifs] share performance under scrub & resilver. -K --- Karl Katzke Systems Analyst II TAMU DRGS _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
