> -----Ursprüngliche Nachricht----- > Von: Will Murnane [mailto:[email protected]] > Bereitgestellt: Donnerstag, 29. Januar 2009 15:29 > Bereitgestellt in: [email protected] > Unterhaltung: [storage-discuss] iscsi target / HBA support > Betreff: Re: [storage-discuss] iscsi target / HBA support > > > On Thu, Jan 29, 2009 at 06:05, > <[email protected]> wrote: > > 1) Does anybody have a similar configuration running? Are > there some > > special configuration "tricks", i.e. jumbo frames (how to > setup on the > > solaris, cisco and ESX/HBA side). > Have you disabled Nagle's algorithm? This can lead to > significant performance improvements with iSCSI. What > storage is backing your targets (e.g., a zpool made of one > disk? a dozen disks? 7k disks or 15k?)? What hardware is > running Solaris? What does local disk performance look like > according to bonnie++ (or something similar)? Nagle's algorithm? Never heard about :-) I'll ask Google The storage is running on a dual socket Opteron Board (tyan S3992) with one dualcore cpu 2200MHz & 4GB RAM. There are 8 SATAII Disks 1.5TB each, connected on an ARECA 1231 (ARC-1231ML). The controller is presenting one device RAID6) to solaris. On the solaris side I have created one storage pool (8.12TB). Theses storage pool covers 23 filesystems used by CIFS shares & 9 Volumes for ICSSI (two for the ESX system disks & 7 for virtual machine containers). I know SATA could be a limitation, but 1) CIFS is quite fast and 2) my old solution had SATAI disks and was faster. So I assume, the disk speed should not be the limitation. > > > 2) How can I measure the perfomance of such a configuration in a > > objective, comparable way? > Run your expected workload against it. Anything else is > mostly for brag rights; it doesn't matter if you can read > really fast sequentially if your application doesn't do that. He he, what I thought...
Robert > > Will > _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss
