There has been a lot iSCSI performance discussion lately so I figured I would point out this little initiator tweak.
In the traces from thread "iSCSI Problem with Solaris 10 6/06" (second trace packet 18196) I noticed the Solaris initiator is still setting a MaxRecvDataSegmentLength of 8K. (Note: This system is noted to having the latest iSCSI patches.) 8K will give really bad read performance and increase utilization on both the target and initiator. You can override this setting with iscsiadm by modifying the target-params and set something like maxrecvdataseglen=131072. It looks like Sun is working on a fix for this problem, http://bugs.opensolaris.org/view_bug.do?bug_id=6457694. This message posted from opensolaris.org _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss
