Smbd

Hmm… i’ve been having problems since the 2009.06 (snv_111b) update with cifs.

Cant pin it exactly as it could be “load” related… hmmm.

found this ? http://opensolaris.org/jive/thread.jspa?threadID=107681 this also may be a clue.. http://opensolaris.org/jive/thread.jspa?threadID=92472&tstart=75

imapd ?  might have to go back to 2008.11

You might get better performance if you enable oplocks but there are known issues with it but you can do it just to see if you see any difference:

svccfg -s smb/server setprop smbd/oplock_enable=boolean: true