[d2n-analysis-talk] New tape volume for analyzed data

Brad Sawatzky brads at jlab.org
Sat Jul 16 04:34:33 EDT 2011


Hi all,

The /mss/halla/e06014/analysis area has been created. The volume set
mapped to the directory is a-e06014-analysis.

You should be able to move all of the 4-pass rootfiles that we want to
keep to that area using 'jput'.  They can be pulled into the cache
system using 'jcache' the same way you work with the raw data files.

There's a few caveats that you should keep in mind when working with the
tape system:

  Note that the name-space below /mss/halla/e06014/analysis/ is flat (no
  sub-directories), so you'll have to make sure that filenames are
  unique.  Please coordinate with each other before moving files from
  the work disks to tape.  There should probably be one person in charge
  of any given move to avoid collisions.

  Be careful to verify that a given file was successfully copied to the
  tape system before deleting it from a work disk.

I would recommend that Diana, Matt, or Dave (you guys work out who)
start copying all the 4-pass replays that we want to keep to tape.
Pull (some of) the files back to /cache and verify that
  a) the files transferred properly,
  b) your scripts can find them on the /cache drive, and
  c) there's no unanticipated weirdness.
Then you can clear out the work disks and use them as staging space for
new replays.

Feel free to drop me a line, or give me me a call if you have questions.

-- Brad

-- 
Brad Sawatzky, PhD <brads at jlab.org>  -<>-  Jefferson Lab / Hall C / C111
Ph: 757-269-5947  -<>-  Fax: 757-269-5235  -<>- Pager: brads-page at jlab.org
The most exciting phrase to hear in science, the one that heralds new
  discoveries, is not "Eureka!" but "That's funny..."   -- Isaac Asimov


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