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Hi All,
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<div class="">According to the man page for mmaddcallback:</div>
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<div class="">A local</div>
<div class=""> event triggers a callback only on the node on which the</div>
<div class=""> event occurred, such as mounting a file system on one of</div>
<div class=""> the nodes.</div>
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<div class="">We have two GPFS clusters here (well, three if you count our small test cluster). Cluster one has 8 NSD servers and one client, which is used only for tape backup \u2026 i.e. no one logs on to any of the nodes in the cluster. Files on it are accessed
one of three ways: 1) CNFS mount to local computer, 2) SAMBA mount to local computer, 3) GPFS multi-cluster remote mount to cluster two. On cluster one there is a user callback for softQuotaExceeded that e-mails the user \u2026 and that we know works.</div>
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<div class="">Cluster two has two local GPFS filesystems and over 600 clients natively mounting those filesystems (it\u2019s our HPC cluster). I\u2019m trying to implement a similar callback for softQuotaExceeded events on cluster two as well. I\u2019ve tested the callback
by manually running the (Python) script and passing it in the parameters I want and it works - I get the e-mail. Then I added it via mmcallback, but only on the GPFS servers.</div>
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<div class="">I did that because I thought that since callbacks work on cluster one with no local access to the GPFS servers that \u201clocal\u201d must mean \u201cwhen an NSD server does a write that puts the user over quota\u201d. However, on cluster two the callback is not
being triggered. Does this mean that I actually need to install the callback on every node in cluster two? If so, then how / why are callbacks working on cluster one?</div>
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<div class="">Thanks\u2026</div>
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<div class="">Kevin</div>
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<div class="">\u2014</div>
<div class="">Kevin Buterbaugh - Senior System Administrator</div>
<div class="">Vanderbilt University - Advanced Computing Center for Research and Education</div>
<div class=""><a href="mailto:Kevin.Buterbaugh@vanderbilt.edu" class="">Kevin.Buterbaugh@vanderbilt.edu</a> - (615)875-9633</div>
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