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<p>Hello all,</p>

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</p>

<p>There has been some prior conversation around HSM partial archive/restore (Seagate at LUG'17:

<a previewremoved="true" id="LPlnk255171" href="http://cdn.opensfs.org/wp-content/uploads/2017/06/LUG-2017-Lustre-HSM-for-HPC-High-Speed-Distributed-Data-Mover-r1.11.pdf" class="OWAAutoLink">

</a><a previewremoved="true" id="LPlnk179289" href="http://cdn.opensfs.org/wp-content/uploads/2017/06/LUG-2017-Lustre-HSM-for-HPC-High-Speed-Distributed-Data-Mover-r1.11.pdf" class="OWAAutoLink">http://cdn.opensfs.org/wp-content/uploads/2017/06/LUG-2017-Lustre-HSM-for-HPC-High-Speed-Distributed-Data-Mover-r1.11.pdf</a></p>

<p><a previewremoved="true" id="LPlnk255171" href="http://cdn.opensfs.org/wp-content/uploads/2017/06/LUG-2017-Lustre-HSM-for-HPC-High-Speed-Distributed-Data-Mover-r1.11.pdf" class="OWAAutoLink"><br>

<br>

</a><span>With complex file layouts and fallocate support being called out as requirements for enabling this.  But as far as I can tell, this has not progressed to any concrete design work.<br>

<br>

Is this correct?  Is there work happening somewhere I'm not aware of?<br>

<br>

If not, is there interest in starting some?  Cray has interest in this, and could help drive such a project, though we would need outside assistance (particularly with design) since we have no internal expertise relating to complex layouts.</span></p>

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<p>Regards,<br>

<span></span></p>

<p><span>- Patrick<br>

</span></p>

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</span></p>

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