[lustre-devel] HSM partial archive/restore

Patrick Farrell paf at cray.com
Thu Jul 27 12:15:57 PDT 2017

Hello all,

There has been some prior conversation around HSM partial archive/restore (Seagate at LUG'17: <http://cdn.opensfs.org/wp-content/uploads/2017/06/LUG-2017-Lustre-HSM-for-HPC-High-Speed-Distributed-Data-Mover-r1.11.pdf> http://cdn.opensfs.org/wp-content/uploads/2017/06/LUG-2017-Lustre-HSM-for-HPC-High-Speed-Distributed-Data-Mover-r1.11.pdf

<http://cdn.opensfs.org/wp-content/uploads/2017/06/LUG-2017-Lustre-HSM-for-HPC-High-Speed-Distributed-Data-Mover-r1.11.pdf>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.

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

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.


- Patrick

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