Greg Zartman via smartos-discuss wrote:
was your disk marked as bad (and the pool marked degraded) or was there some other way of determining your disk was "bad" ? and what does your original test look like (was 90-ish MB/s with "bad" disk plus slog) without the "bad" disk?No, it looked fine when I did zpool status. I was just getting horrible performance in my KVM zone. I added the an intel 3700 and it didn't make much difference. SIGXCPU from the IRC channel helped me run an i/o test on all devices in the pool and the bad device was pegged at 100% usage while the slog and other devices where just idling. I pulled that one device from the pool and the performance in the KVM VM container shot up and the iostate of the devices showed pretty equal usage across the pool.
Which is why I suggested iostat.... "zpool iostat" hides too much information to use as a debugging tool. -- Ian. ------------------------------------------- smartos-discuss Archives: https://www.listbox.com/member/archive/184463/=now RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00 Modify Your Subscription: https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb Powered by Listbox: http://www.listbox.com
