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====== ZFS Issues ======
===== Commands to test zfs pool =====
  Using sysctl:
  $ sysctl vfs.numvnodes vfs.zfs
  $ sysctl kern | grep kmem
===== input output stats =====
  gstat


All the arc stats can be retrieve via sysctl...
e.g. sysctl kstat.zfs.misc.arcstats


===== Memory Tweak Oct2012 =====
2gb set 9:39 24/10 Uptime; 
ater rebuild, 4Gb set on 28/10 9am


===== ZFS Logging =====
 
have an issue where ZFS consumes all available memory as a result of that same periodic 100.chksetuid script running. It normally grinds the machine to a halt but I think I've also had a panic.

Could you set up a log of the zfs sysctls like:
Code:

export ZFSLOG=/tmp/vfs_zfs.log; while true; do date >> $ZFSLOG; sysctl vfs.zfs >> $ZFSLOG; sleep 30; done

and see what the vfs.zfs.arc_meta_used is before it crashes? 

===== ZFS Posts =====
http://forums.freebsd.org/showthread.php?t=30021

===== Freebsd Kernel debugging =====

http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html