Hi.

bash-3.00# uname -a
SunOS XXXX 5.10 Generic_125101-04 i86pc i386 i86pc

Server is x4100.

NFS server under Sun Cluster with ZFS.

I issued 'zpool import' to see other pool available to import on one node and 
then I got very slow nfs access to that node, nfsd go upto ~3500 threads (from 
~500) and load increased to few hundreds.
I couldn't stop 'zpool import' - after 2-3 minutes it exited with no output (as 
^C was send several times) and load immediately dropped to normal level.


During 'zpool import' it consumed entirely one CPU core and nfsd consumed all 
the rest.

I did run for several seconds:
bash-3.00# dtrace -n fbt:zfs::entry'/pid == 16919/[EMAIL PROTECTED]();}'
dtrace: description 'fbt:zfs::entry' matched 1085 probes
^C

  arc_buf_destroy                                               10289
  arc_change_state                                              10289
  zio_buf_free                                                  10289
  arc_evict                                                    730332
bash-3.00# 


Server is running with zil_disable=1

?
 
 
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