Thanks Richard - interesting... The c8 controller is the motherboard SATA controller on an Intel D510 motherboard.
I've read over the man page for iostat again, and I don't see anything in there that makes a distinction between the controller and the device. If it is the controller, would it make sense that the problem affects only one drive and not the other? It still smells of a drive issue to me. Since the controller is on the motherboard and difficult to replace, I'll replace the drive shortly and see how it goes. Nonetheless, I still find it odd that the whole io system effectively hangs up when one drive's queue fills up. Since the purpose of a mirror is to continue operating in the case of one drive's failure, I find it frustrating that the system slows right down so much because one drive's i/o queue is full. -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
