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Tags » Scsi D

Related tags: cycling, disk, dtrace, io, opensolaris, scsi, solaris, work

  1. Gathering performance statistics with scsi.d

    blogs.sun.com » The dot in ... --- ... - Oct 10, 2008

    While scsi.d is good for looking at scsi packets and seeing those raw CDBs not many people are really interested in what a SCSI packet looks like, well not enough people if you ask me. However what is much more

    Also tagged: cycling, opensolaris, solaris, dtrace

  2. Filtering what scsi.d processes scsi.d reports IO for.

    blogs.sun.com » The dot in ... --- ... - Jul 18, 2008

    I have updated scsi.d to allow you to see just the the commands associated with particular processes either by execname or by process id. To see all the scsi IO associated with a process with an exec name of “dd”: #

    Also tagged: work, opensolaris, solaris, dtrace

  3. A more generic scsi.d

    blogs.sun.com » The dot in ... --- ... - May 31, 2008

    I had reason to want to be able to decode scsi_pkt structures in dtrace again this week and it struck me that that is really what scsi.d does. So I went about modifying it to be able to translate the structures in the

    Also tagged: work, scsi, solaris, dtrace

  4. Latency bubbles in your disk IO

    blogs.sun.com » The dot in ... --- ... - Jan 11, 2008

    The following was written in response to an email from a customer about monitoring IO in response to my scsi.d postings. Tim covers where disk IO requests can be queued in his posting titled “ Where can I/O queue up in

    Also tagged: work, io, scsi, solaris, disk, dtrace

  5. scsi.d updates are like busses.

    blogs.sun.com » The dot in ... --- ... - Apr 6, 2007

    None for months then three come along one after another. This latest update is a direct result of me failing to test the script on Solaris 10. Some of the things that work on Nevada are not quite there on Solaris 10

    Also tagged: work, opensolaris, scsi, solaris, dtrace

  6. Bug fix for scsi.d

    blogs.sun.com » The dot in ... --- ... - Apr 6, 2007

    Today, well last night, I learned that dtrace clause local variables (this->) unlike thread local variables (self->) are not initialised by default. This is all clearly stated in the documentation had I read it

    Also tagged: work, opensolaris, scsi, solaris, dtrace

  7. scsi.d improvements.

    blogs.sun.com » The dot in ... --- ... - Apr 6, 2007

    With thanks to Brendan Gregg for the encouragement I have improved the argument handling in scsi.d. I asy improved carefully as it is still not right. Mainly as I am too subborn to wrap the thing in a shell script when

    Also tagged: work, opensolaris, scsi, solaris, dtrace