Hi Ashley;
RaidZ Group is Ok for throughput but due to the design whole RaidZ Group behavies like a single disk so your max IOPS is around 100. I'd personaly use Raid10 instead. Also you seem to have no write cache which can effect performance. Try using a log device Best regards Mertol <http://www.sun.com/> http://www.sun.com/emrkt/sigs/6g_top.gif Mertol Ozyoney Storage Practice - Sales Manager Sun Microsystems, TR Istanbul TR Phone +902123352200 Mobile +905339310752 Fax +902123352222 Email mertol.ozyo...@sun.com From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-boun...@opensolaris.org] On Behalf Of Ashley Avileli Sent: Friday, August 14, 2009 2:21 PM To: zfs-discuss@opensolaris.org Subject: [zfs-discuss] ZFS nfs performance on ESX4i I have setup a pool called vmstorage and mounted it as nfs storage in esx4i. The pool in freenas contains 4 sata2 disks in raidz. I have 6 vms; 5 linux and 1 windows and performance is terrible. Any suggestion on improving the performance of the current setup. I have added the following vfs.zfs.prefetch_disable=1 which improved the performance slightly.
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