I think I advised you on the solaris forums to try some tests with two separate ufs filesystems on the luns in question. Just to check that your hardware can actually do what you think it can.
One other issue that might be confusing things. I believe the AMS is a non symmetric array so LUN's have a concept of a native controller. And will get non optimal performance if you try to access them from the other controller. Hopefully you have made sure that each lun is native for the controller your accessing it through. And hopefully your dealing with LUNS from separate raid groups. So that your actually trying to write in parallel to two separate sets of spindles. Otherwise writing in parallel to 2 luns from the same raid group can force the disk heads to seek back and forth actually significantly decreasing performance. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss