To FORMAT a device, in this case one of the 2305 drums,
look at the PAGE* VOLDATA files on the systems disk.
 
- Run DSF to check out       IPLIT DSF9
  the HDA (if necessary).    CONSOLE
                             CONSOLE
                             INIT UNIT(xxx) NVFY CHK(3) VAL VOLID(xxxxxx)
 
- IPL the FORMAT/ALLOCATE    IPLIT FMT42
  program.
 
- Format the volume first.   FORMAT
  This writes 4K records     8D0
  on all the cylinders       2305-2
  except cylinder 0,         <ENTER>   starting cylinder number (first)
  head 0.  That gets the     <ENTER>   ending cylinder number (last)
  special IPL format.        PAGE13
 
- Then allocate it.          ALLOCATE
  This writes the CP         8D0
  allocation map on          2305-2
  cylinder 0, head 0,        PAGE13
  record 4.                  PAGE 000 095
                             END
 
- Then SDF it.  The SDF      SDF FORMAT 8D0 PAGE13
  records are on
  cylinder 0, head 1.
 
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The minimum you can do is to format cylinder 0,
                             allocate it all PERM,
                             then SDF it.