Hello Robert, Thursday, August 24, 2006, 4:44:26 PM, you wrote:
RM> Hello Robert, RM> Thursday, August 24, 2006, 4:25:16 PM, you wrote: RM>> Hello Roch, RM>> Thursday, August 24, 2006, 3:37:34 PM, you wrote: R>>> So this is the interesting data , right ? R>>> 1. 3510, RAID-10 using 24 disks from two enclosures, random R>>> optimization, 32KB stripe width, write-back, one LUN R>>> 1.1 filebench/varmail for 60s R>>> a. ZFS on top of LUN, atime=off R>>> IO Summary: 490054 ops 8101.6 ops/s, (1246/1247 r/w) R>>> 39.9mb/s, 291us cpu/op, 6.1ms latency R>>> 2. 3510, 2x (4x RAID-0(3disks)), 32KB stripe width, R>>> random optimization, write back. 4 R0 groups are in one enclosure R>>> and assigned to primary controller then another 4 R0 groups are in other enclosure R>>> and assigned to secondary controller. Then RAID-10 is created with R>>> mirror groups between controllers. 24x disks total as in #1. R>>> 2.1 filebench/varmail 60s R>>> a. ZFS RAID-10, atime=off R>>> IO Summary: 379284 ops 6273.4 ops/s, (965/965 r/w) R>>> 30.9mb/s, 314us cpu/op, 8.0ms latency R>>> Have you tried 1M stripes spacially in case 2 ? R>>> -r RM>> I did try with 128KB and 256KB stripe width - the same results RM>> (difference less than 5%). RM>> I haven't tested 1MB 'coz maximum for 3510 is 256KB. RM> I've just tested with 4k - the same result. And now I tried with creating two stripes on 3510, each with 12 disks, 32KB stripe width, each on different controller. Then using ZFS I mirrored them. And the result is ~6300 IOPS for the same test. Looks like I'll go with HW raid and zfs as file system for several reasons. -- Best regards, Robert mailto:[EMAIL PROTECTED] http://milek.blogspot.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
