The module uses "tsmsm:dmapi attribute" instead of "tsmsm:attribute name".
where <operation> is currently 'offline' to set offline status of the <filepath>
tsmsm: online ratio = ratio to check reported size against actual file size (0.5 by default)
- tsmsm: attribute name = name of DMAPI attribute that is present when a file is offline.
+ tsmsm: dmapi attribute = name of DMAPI attribute that is present when a file is offline.
Default is "IBMobj" (which is what GPFS uses)
The TSMSM VFS module tries to avoid calling expensive DMAPI calls with some heuristics