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In my memory, it is not recommended to run Lustre more than 90%
full. <br>
<br>
bob<br>
<br>
<div class="moz-cite-prefix">On 1/14/2015 2:43 PM, Mike Selway
wrote:<br>
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<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal"> I’m looking for experiences
for what has been observed to happen (performance drop offs,
severity of drops, partial/full failures, …) when an
operational Lustre File System has been almost “filled”…
percentages of interest are in the range from say 80% to 99%.
Multiple responses appreciated.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Also, comments from anyone who has
implemented a Robin Hood approach, about how they worked to
avoid performance drop offs of a “near full” file system by
“archiving and releasing data blocks” to auto-reconstruct
continuous data areas.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks!<br>
Mike<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;color:#0F243E">Mike Selway</span></b><b><span
style="font-size:10.0pt;color:#A80000">
</span></b><b><span style="font-size:10.0pt;color:#365F91">|</span></b><b><span
style="font-size:10.0pt;color:#595959"> Sr. Storage
Architect (TAS) | Cray Inc.<o:p></o:p></span></b></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;color:#404040">Work</span><span
style="font-size:10.0pt;color:black">
</span><span style="font-size:10.0pt;color:#595959">+1-301-332-4116
| <a class="moz-txt-link-abbreviated" href="mailto:mselway@cray.com">mselway@cray.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;color:#595959">146 Castlemaine Ct,
Castle Rock, CO 80104|
<a moz-do-not-send="true"
href="http://www.cray.com/Products/Storage/Tiered-Adaptive-Storage.aspx"><span
style="color:blue"> Check out Tiered Adaptive Storage
(TAS)!</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:6.0pt;color:#595959"><o:p> </o:p></span></p>
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