[Lustre-discuss] Lustre Sparse Files question

[Bradley W. Settlemyer]

Hello

  Is there a mechanism within Lustre for querying the populated extents
in a sparse lustre file?  Perhaps some kind of bmap support or an IOCTL
for populating an extent map?

  I believe ZFS has support for SEEK_HOLE whences, but I didn't know if
Lustre has any mechanism to accomplish similar goals.

Cheers,
-- 
Brad Settlemyer
Research Associate
Oak Ridge National Laboratory