Hi Duncan, I also do the same with my Mac for timemachine and get the same WOEFUL performance to my x4500 filer.
I have mounted ISCSI zvols on a linux machine and it performs as expected (50 mbytes a second) as apposed to my Mac that goes @ 1mbyte a second. I do believe the client for Mac is crap. Would be nice if apple wrote a client for ISCSI. But if anyone has a fix for Mac OS X that would be great to know ! Ta, -- Cooper Ry Lees HPC / UNIX Systems Administrator - Information Management Services (IMS) Australian Nuclear Science and Technology Organisation T +61 2 9717 3853 F +61 2 9717 9273 M +61 403 739 446 E cooper.l...@ansto.gov.au www.ansto.gov.au <http://www.ansto.gov.au> Important: This transmission is intended only for the use of the addressee. It is confidential and may contain privileged information or copyright material. If you are not the intended recipient, any use or further disclosure of this communication is strictly forbidden. If you have received this transmission in error, please notify me immediately by telephone and delete all copies of this transmission as well as any attachments. On 25/08/09 11:57 AM, "Duncan Groenewald" <dagroenew...@optusnet.com.au> wrote: > Hi, I have just setup an ISCSI volume on ZFS to use with OS X as a backup > disk but performance is extremely bad. I am using the GlobalSAN iSCSI > initiator. > > Without getting into too much detail does anyone know whether there is a > reason why an iSCSI device seems to perform so badly ? I have configured the > iSCSI device as a Time Machine drive the backup is very very slow. > > I have also seen a number of postings about the ZIL being the problem and > needing to put in a fast SSD drive to address this. > > If anyone has a good explanation of what this problem is and how to fix it > please let me know. I am using a small PC with 4 x1TB SATA drives as a file > server running OpenSolaris 2009.06. > > Thanks _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
