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<p>It can be pretty easily inferred from the nature of the feature.</p>
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<p>If a decent policy is written and applied to all files (starting with few stripes and going to many as size increases), then it will resolve the problem of large files on single OSTs. If the policy is not universally applied or is poorly constructed, you
may have issues.</p>
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<p>Otherwise, as long as users are not restricting file creation to a single or small # of OSTs, then there's not really any way for them to fill up a single OST without filling up all of them.</p>
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<p>- Patrick</p>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> lustre-discuss <lustre-discuss-bounces@lists.lustre.org> on behalf of Mark Hahn <hahn@mcmaster.ca><br>
<b>Sent:</b> Tuesday, October 24, 2017 3:21:47 PM<br>
<b>To:</b> Lustre Discuss<br>
<b>Subject:</b> Re: [lustre-discuss] ZFS-OST layout, number of OSTs</font>
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<div class="PlainText">> It?s also worth noting that if you have small OSTs it?s much easier to bump<br>
>into a full OST situation. And specifically, if you singly stripe a file<br>
>the file size is limited by the size of the OST.<br>
<br>
is there enough real-life experience to know whether <br>
progressive file layout will mitigate this issue?<br>
<br>
thanks,<br>
Mark Hahn | SHARCnet Sysadmin | hahn@sharcnet.ca | <a href="http://www.sharcnet.ca">
http://www.sharcnet.ca</a><br>
| McMaster RHPCS | hahn@mcmaster.ca | 905 525 9140 x24687<br>
| Compute/Calcul Canada | <a href="http://www.computecanada.ca">
http://www.computecanada.ca</a><br>
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