On Tue, Oct 13, 2009 at 01:00:35PM -0400, Frank Middleton wrote: > After a recent upgrade to b124, decided to switch to COMSTAR for iscsi > targets for VirtualBox hosted on AMD64 Fedora C10. Both target and > initiator are running zfs under b124. This combination seems > unbelievably slow compared to the old iscsi subsystem. > > A scrub of a local 20GB disk on the target took 16 minutes. A scrub of > a 20GB iscsi disk took 106 minutes! It seems to take much longer to > boot from iscsi, so it seems to be reading more slowly too. > > There are a lot of variables - switching to Comstar, snv124, VBox > 3.08, etc., but such a dramatic loss of performance probably has a > single cause. Is anyone willing to speculate?
Maybe this will help: http://mail.opensolaris.org/pipermail/storage-discuss/2009-September/007118.html -- albert chin (ch...@thewrittenword.com) _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
