  This work in progress paper outlines research looking at the performance
impact of using different storage interfaces to access the high performance
object store DAOS. We demonstrate that using DAOS through a FUSE based
filesystem interface can provide high performance, but there are impacts when
choosing what I/O library or interface to utilises, with HDF5 exhibiting the
highest impact. However, this varied depending on what type of I/O operations
were undertaken.
