iosnoop in the dtracetoolkit... :)

Bill Shannon wrote:
> Is there a dtrace script usable by novices (i.e., me) that will help
> me figure out which process is accessing my disk every 3 seconds?
> 
> I moved my home directory to an external disk and now I can hear the
> disk rattle every 3 seconds.  It's driving me crazy!  I really want
> to find the culprit.
> 
> I found the DTraceToolkit and used the iofileb.d script, which is
> pretty close, but according to it there were no accesses to files
> on the disk I'm watching.  That seems wrong.  Really I'd like to get
> a trace as the accesses are happening, not a summary at the end.
> 
> (BTW, any chance it's zfs itself accessing the disk?)
> 
> Thanks.
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