Do you have dedup on? Removing large files, zfs destroy a snapshot, or a zvol and you'll see hangs like you are describing.
Turn off dedup is best option.. If you want dedup get more ram, and more, and more, and.. add SSD cache device.. then it works ok usually.. Right now I'm fighting an outage due to zfs destroy zvol that hung everything, we thought we had identified what "not to do" but apparently not.. Dedup only works well with a lot of ram, otherwise the dedup table is read from disk (very slowly, especially during i/o) and some operations lock the whole server - it blocks other disk i/o. Good luck, Steve Radich www.BitShop.com - Business Innovative Technology Shop -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
