0FF5 BTLS N/A Indicates a scratch volume. Volumes in this category  belong to the optional scratch pool SCRTCH5. 0FF6 BTLS N/A Indicates a scratch volume. Volumes in this category  belong to the optional scratch pool SCRTCH6. 0FF7 BTLS N/A Indicates a scratch volume. Volumes in this category  belong to the optional scratch pool SCRTCH7. 0FF8 BTLS N/A Indicates a scratch volume. Volumes in this category  belong to the optional scratch pool SCRTCH8. 0FF9 -  0FFE N/A N/A No assignment to a specific host system. These  categories can be dynamically assigned by the  Library Manager at the request of a host. 0FFF BTLS N/A Indicates a scratch volume. Volumes in this category  belong to the default scratch pool used by BTLS. Tip:  If you are planning to change to DFSMS, you  must use this default scratch category only. 1000 -  EFFF N/A N/A No assignment to a specific host system. These  categories can be dynamically assigned by the  Library Manager at the request of a host. F000 -  F00D N/A N/A Reserved for future use. F00E BTLS N/A Indicates a volume in error. Volumes are assigned to  the error category during unmount if the volume serial  specified for unmount does not match the external  label of the volume being unmounted. F00F -  FEFF N/A N/A Reserved for future use. FF00 All N/A Insert category.  When a tape volume is added to an automated tape  library, the library reads the external label on the  volume, creates an inventory entry for the volume,  and assigns the volume to the insert category. This  category can be updated by operator interaction  through Librarian Workstation Support. FF01 VTS (VTS) and  IBM TS7700  N/A Stacked Volume Insert category for a VTS and  TS7700.  A volume is set to this category when its volume  serial number is in the range that is specified for  stacked volumes for any VTS library partition. FF02 VTS  N/A Stacked Volume Scratch category 0 for a VTS and  TS7700.  This category is reserved for future use for scratch  stacked volumes. FF03 VTS  N/A Stacked Volume Scratch category 1 for a VTS and  TS7700.  This category is used by the VTS for its scratch  stacked volumes. This category is not used if the  Licensed Internal Code (LIC) is 527 or later. Category  (in hex) Used by DFSMSrmm Definition 882  IBM TS7700 Release 5.0 Guide