Hello Robert, Sunday, November 5, 2006, 2:12:58 AM, you wrote:
RM> Hello Robert, RM> Thursday, November 2, 2006, 5:12:37 PM, you wrote: RM>> Hello zfs-discuss, RM>> Server: x4500, 2x Opetron 285 (dual-core), 16GB RAM, 48x500GB RM>> filebench/randomread script, filesize=256GB RM>> 2 disks for system, 2 disks as hot-spares, atime set to off for a RM>> pool, cache_bshift set to 8K (2^13), recordsize untouched (default). RM>> pool: 4x raid-z (5 disks) + 4x raid-z (6 disks) means that one pool RM>> was created wit 4 raid-z1 groups each with 5 disks and another 4 RM>> raid-z1 groups each with 6 disks. RM>> 1. pool: 4x raid-z (5 disks) + 4x raid-z (6 disks) RM>> (36 disks of usable space) RM>> a. nthreads = 1 ~60 ops RM>> b. nthreads = 4 ~250 ops RM>> c. nthreads = 8 ~520 ops RM>> d. nthreads = 128 ~1340 ops RM>> 1340/8 = 167 ops RM>> RM> Now the same pool config but actual RAID-5 is done using SVM and zfs RM> just does striping between SVM R5 devices. RM> with nthreads=128 I get ~3680 ops it's actually ~4100 ops -- 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
