Hi Brad,<div><br></div><div> So I have talked to Dave and Diana, and I am going to control the data storage to the tape space. I have tried to copy several runs to the tape using the following:</div><div><br></div><div><div>
jput ./e06014_skim_BB_2025.root /mss/halla/e06014/analysis/e06014_skim_BB_2025.root</div><div> [2011-07-19 11:27:52] Submitting request [24814172]</div><div> [2011-07-19 11:28:00] [0][0] {Staging} /w/halla/e06014/20101118/SkimROOTfiles/e06014_skim_BB_2025.root --> /mss/halla/e06014/analysis/e06014_skim_BB_2025.root</div>
<div> [2011-07-19 11:28:48] /w/halla/e06014/20101118/SkimROOTfiles/e06014_skim_BB_2025.root 1505722373 bytes in 48.096 seconds (29.836 MB/sec) empty/full=11644/3935</div><div> [2011-07-19 11:28:49] [0][0] {Staged} /w/halla/e06014/20101118/SkimROOTfiles/e06014_skim_BB_2025.root --> /mss/halla/e06014/analysis/e06014_skim_BB_2025.root</div>
</div><div><br></div><div>After I seen this, I checked the /mss/halla/e06014/analysis directory and there were no runs there, after several minutes though the root files showed up. So I was wondering when is says '{Staged}', does that mean that it was successfully written to the tape and it just takes time for it to show up in the tape directory? Or does '{Staged}' mean that it is queued to be written to the tape? If it is the latter, is there a command that I can use to check on the status of the file transfer a la 'jobstat' when submitting jobs?</div>
<div><br></div><div>Thanks</div><div>Matt </div><div><br></div><div><br></div><div>I then <br><br><div class="gmail_quote">On Sat, Jul 16, 2011 at 4:34 AM, Brad Sawatzky <<a href="mailto:brads@jlab.org">brads@jlab.org</a>> wrote:<br>
<blockquote class="gmail_quote">Hi all,<br>
<br>
The /mss/halla/e06014/analysis area has been created. The volume set<br>
mapped to the directory is a-e06014-analysis.<br>
<br>
You should be able to move all of the 4-pass rootfiles that we want to<br>
keep to that area using 'jput'. They can be pulled into the cache<br>
system using 'jcache' the same way you work with the raw data files.<br>
<br>
There's a few caveats that you should keep in mind when working with the<br>
tape system:<br>
<br>
Note that the name-space below /mss/halla/e06014/analysis/ is flat (no<br>
sub-directories), so you'll have to make sure that filenames are<br>
unique. Please coordinate with each other before moving files from<br>
the work disks to tape. There should probably be one person in charge<br>
of any given move to avoid collisions.<br>
<br>
Be careful to verify that a given file was successfully copied to the<br>
tape system before deleting it from a work disk.<br>
<br>
I would recommend that Diana, Matt, or Dave (you guys work out who)<br>
start copying all the 4-pass replays that we want to keep to tape.<br>
Pull (some of) the files back to /cache and verify that<br>
a) the files transferred properly,<br>
b) your scripts can find them on the /cache drive, and<br>
c) there's no unanticipated weirdness.<br>
Then you can clear out the work disks and use them as staging space for<br>
new replays.<br>
<br>
Feel free to drop me a line, or give me me a call if you have questions.<br>
<br>
-- Brad<br>
<br>
--<br>
<font color="#888888">Brad Sawatzky, PhD <<a href="mailto:brads@jlab.org">brads@jlab.org</a>> -<>- Jefferson Lab / Hall C / C111<br>
Ph: 757-269-5947 -<>- Fax: 757-269-5235 -<>- Pager: <a href="mailto:brads-page@jlab.org">brads-page@jlab.org</a><br>
The most exciting phrase to hear in science, the one that heralds new<br>
discoveries, is not "Eureka!" but "That's funny..." -- Isaac Asimov<br>
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</font></blockquote></div><br><br clear="all"><br>-- <br>Matthew Posik<br>Email: <a href="mailto:posik@temple.edu">posik@temple.edu</a><br>Temple University Physics Dept.<br>Office: BA-319<br>Office #: 215-204-1331 <br>
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