<div dir="ltr"><div>Hi Richard,</div><div><br></div>Either add something like "-L 2" to your mmapplypolicy command or add an 'EXEC ...' to your policy file to have it print out the actual files that matched. There is an example exec script somewhere in the samples folder<div><br></div><div>I have found that in the past when I doubted the policy results, there was something I misunderstood. So just go ahead and examine the metadata on the actual files that match.</div><div><br></div><div>Perhaps at some point in the past, you had some kind of application scan through the filesystem and thus all the access times got updated to newer than you expect.</div><div><br></div><div>For the file count/size numbers, I don't find that unusual; there are all kinds of user applications that have pathological patterns like 450k files totaling 11MB. But worth double-checking. You can run some example policies like the one you ran, but list only >10TB files or list only files of 0 size; you never know what you might find.</div><div><br></div><div>Regards,</div><div>Alex</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Dec 1, 2017 at 8:57 AM, Sobey, Richard A <span dir="ltr"><<a href="mailto:r.sobey@imperial.ac.uk" target="_blank">r.sobey@imperial.ac.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">Hi all,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">I’m getting some strange results using a policy to list all the files (well, I’m only interested in the total size that GPFS chooses) that have not been accessed for more than 1/2/3 etc years.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">The policy rule I’m using is:<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">RULE 'list_old' LIST 'atime_gt_730'<u></u><u></u></p>
<p class="MsoNormal">WHERE DAYS(CURRENT_TIMESTAMP) -DAYS(ACCESS_TIME) > 730<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">..for anything over 2 years. My filesystem is 3.5 years old and we first started migrating to it about three years ago, yet although GPFS is choosing ~400000 files that match, the total size is just north of 11000KB:<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">[I] Summary of Rule Applicability and File Choices:<u></u><u></u></p>
<p class="MsoNormal">Rule# Hit_Cnt KB_Hit Chosen KB_Chosen KB_Ill Rule<u></u><u></u></p>
<p class="MsoNormal"> 0 453765 11776 453765 11776 0 RULE 'list_old' LIST 'atime_gt_730' WHERE(.)<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">I’m having a hard time believing half a million files total 11MB especially given the very random spread of usage the system sees.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">The mmapplypolicy command I’m running is:<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">/usr/lpp/mmfs/bin/<wbr>mmapplypolicy /gpfs/path -f /gpfs/policies/ -I defer --scope filesystem -P ./list_old_allfs.txt<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">The directory ‘path’ above is the root of the main CES share which encompasses all my filesets.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">This is my first real foray into using the policy engine so I might be doing something silly, or misinterpreting the results, or there is simply a far easier way to achieve my goal.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Can anyone help?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Thanks<span class="HOEnZb"><font color="#888888"><u></u><u></u></font></span></p><span class="HOEnZb"><font color="#888888">
<p class="MsoNormal">Richard<u></u><u></u></p>
</font></span></div>
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