Solaris 10 dtrace command...

I am having sporadic problems with a Solaris 10 database server running on a 
ZFS file system.  Every once in a while, a simple OS command like "ls -al" in a 
directory with 10-20 files will hang for more than 1 minute.  I was able to use 
the truss command to finally capture one of the incidents where the "ls -al" 
command took over 1 minute.  The unfortunate thing is that the truss output 
wasn't able to capture where the wait occurred.  I am now moving on to dtrace - 
but wow...I am really hoping that someone on the list has had prior experience 
and wouldn't mind sharing a script or two that they have used to capture 
information where os commands are hanging trying to access the disk subsystem.  
Maybe event a good url reference that won't take me a day to read through...
I did check the freelists archive and did not have a lot of luck.  Some of the 
url references no longer exist since www.sun.com<http://www.sun.com/> now 
redirects to www.oracle.com.

I am sure I can read manuals and figure this out over the next couple of 
days....but I was really hoping someone wouldn't mind sharing some of their 
experiences.

Thanks in advance!
Bill

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http://www.freelists.org/webpage/oracle-l

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