On Wed, May 26, 2010 at 5:08 AM, Matt Connolly <matt.connolly...@gmail.com> wrote: > I've set up an iScsi volume on OpenSolaris (snv_134) with these commands: > > sh-4.0# zfs create rpool/iscsi > sh-4.0# zfs set shareiscsi=on rpool/iscsi > sh-4.0# zfs create -s -V 10g rpool/iscsi/test > > The underlying zpool is a mirror of two SATA drives. I'm connecting from a > Mac client with global SAN initiator software, connected via Gigabit LAN. It > connects fine, and I've initialiased a mac format volume on that iScsi volume. > > Performance, however, is terribly slow, about 10 times slower than an SMB > share on the same pool. I expected it would be very similar, if not faster > than SMB. > > Here's my test results copying 3GB data: > > iScsi: 44m01s 1.185MB/s > SMB share: 4m27 11.73MB/s > > Reading (the same 3GB) is also worse than SMB, but only by a factor of about > 3: > > iScsi: 4m36 11.34MB/s > SMB share: 1m45 29.81MB/s > > > Is there something obvious I've missed here? > -- > This message posted from opensolaris.org > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >
Try jumbo frames, and making sure flow control is enabled on your iSCSI switches and all network cards -- Brent Jones br...@servuhome.net _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
