Hi, I have a ZFS file system that consists of a Sunfire V280R + 10T of attached Raidweb array. bash-3.00# zpool status pool: filer state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM backup ONLINE 0 0 0 c1t2d1 ONLINE 0 0 0 c1t2d2 ONLINE 0 0 0 c1t2d3 ONLINE 0 0 0 c1t2d4 ONLINE 0 0 0 c1t2d5 ONLINE 0 0 0 bash-3.00# zpool list NAME SIZE USED AVAIL CAP HEALTH ALTROOT filer 9.44T 6.97T 2.47T 73% ONLINE - This file system is shared via nfs on the network. Off late we have started noticing considerable slowness in the network. Even a ls or a vi command takes time to execute. Things that we noticed to slow down the systems are, running commands like "du" "find" on the nfs server. Is there a way the nfs traffic can be monitored on the zfs. Also the slowness of the file system is not at all times, but only intermittent. The assumption is that too much I/O is causing it, but what we want to know is how to capture it. Thanks, --Walter