+ *
+ * VOL_CAP_FMT_64BIT_OBJECT_IDS: When set, the volume uses object IDs that
+ * are 64-bit. This means that ATTR_CMN_FILEID and ATTR_CMN_PARENTID are the
+ * only legitimate attributes for obtaining object IDs from this volume and the
+ * 32-bit fid_objno fields of the fsobj_id_t returned by ATTR_CMN_OBJID,
+ * ATTR_CMN_OBJPERMID, and ATTR_CMN_PAROBJID are undefined.
+ *
+ * VOL_CAP_FMT_DIR_HARDLINKS: When set, the volume supports directory
+ * hard links.
+ *
+ * VOL_CAP_FMT_DOCUMENT_ID: When set, the volume supports document IDs
+ * (an ID which persists across object ID changes) for document revisions.
+ *
+ * VOL_CAP_FMT_WRITE_GENERATION_COUNT: When set, the volume supports write
+ * generation counts (a count of how many times an object has been modified)
+ *
+ * VOL_CAP_FMT_NO_IMMUTABLE_FILES: When set, the volume does not support
+ * setting the UF_IMMUTABLE flag.
+ *
+ * VOL_CAP_FMT_NO_PERMISSIONS: When set, the volume does not support setting
+ * permissions.