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On Sep 3, 2021, at 01:49, Alastair Basden <<a href="mailto:a.g.basden@durham.ac.uk" class="">a.g.basden@durham.ac.uk</a>> wrote:<br class="">
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<div class="">Hi,<br class="">
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We have a file system where each OST is a single SSD.<br class="">
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One of those is reporting as 100% full (lfs df -h /snap8):<br class="">
snap8-OST004d_UUID 5.8T 2.0T 3.5T 37% /snap8[OST:77]<br class="">
snap8-OST004e_UUID 5.8T 5.5T 7.5G 100% /snap8[OST:78]<br class="">
snap8-OST004f_UUID 5.8T 2.0T 3.4T 38% /snap8[OST:79]<br class="">
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However, I can't find any files on it:<br class="">
lfs find --ost snap8-OST004e /snap8/<br class="">
returns nothing.<br class="">
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I guess that it has filled up, and that there is some bug or other that is now preventing proper behaviour - but I could be wrong.<br class="">
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Does anyone have any suggestions?<br class="">
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Essentially, I'd like to find some of the files and delete or migrate some, and thus return it to useful production.<br class="">
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<div>Next step would be to unmount OST004e, run a full e2fsck, and then check lost+found and/or a regular "find /mnt/ost -type f -size +1M" or similar to find where the files are.</div>
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<div>Cheers, Andreas</div>
<div>--</div>
<div>Andreas Dilger</div>
<div>Lustre Principal Architect</div>
<div>Whamcloud</div>
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