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<p class="MsoNormal">Allo<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> Wondering if anyone uses multiple stgpools under a namespace where all stgpools have thresholds attached.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Assume two storage pools A and B under namespace N.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">If storage pool A hits a threshold then mmapplypolicy will be called to migrate stgpool A<o:p></o:p></p>
<p class="MsoNormal">However, whilst that is occurring, if stgpool B hits its threshold then same mmapplypolicy will be called.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Obviously, this can’t work if you’re using--single-instance or a file locking method to stop the policy being applied every 2 mins due to the lowDiskSpace event.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">How do you handle this?<o:p></o:p></p>
<p class="MsoNormal">Move any migration logic out of the main ‘running policy’ and change the callback to --parms “%eventName %fsName %storagePool” with locking on a per stgpool basis?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">---<o:p></o:p></p>
<p class="MsoNormal">Jez Tucker <o:p></o:p></p>
<p class="MsoNormal">Senior Sysadmin <o:p></o:p></p>
<p class="MsoNormal">Rushes <o:p></o:p></p>
<p class="MsoNormal">DDI: +44 (0) 207 851 6276 <o:p></o:p></p>
<p class="MsoNormal"><a href="http://www.rushes.co.uk/"><span style="color:blue">http://www.rushes.co.uk</span></a>
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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