  Firmware revisions of SCSI devices? 
 The Question is:
 
How do I find out the current version of firmware on a TZ87 tape device?
 
 
 The Answer is:
 
  This information may be obtainable from the system console of the
  particular VAX model in use, using a SHOW or similar console command.
  Or this information may be visible in the system error log, using
  ANALYZE/ERROR or DECevent.  Failing either of these, the only way
  likely to obtain this data is by using a SCSI INQUIRY request, and
  inquiring directly of the SCSI device.
 
  The (unsupported) program SCSI_INFO.EXE can obtain this and other
  information from most SCSI devices -- to use this tool, set up a
  DCL symbol:
 
    $ SI :== $SYS$ETC:SCSI_INFO.EXE
 
  Then specify a command such as:
 
    $ SI ddcu:
 
  where ddcu: is the target SCSI device.  SCSI_INFO.EXE will then report
  the product revision level, obtained from bytes 0x20 thru 0x23 of
  the SCSI INQUIRY data (interpreted as ASCII characters).  0x20 and
  0x21 are the drive revision; 0x22 and 0x23 are the controller revision.
  SCSI_INFO.EXE is available in OpenVMS VAX and OpenVMS Alpha V6.2 and
  later releases.
 
  If SCSI_INFO.EXE does not suffice, or if you need help in interpreting
  the reported values, please contact your local hardware support
  organization or the Compaq Customer Support Center.
 
