8708 Want diskinfo(1m) to list all disk bays, including those don't have disk installed

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  NAME
       diskinfo - provide disk device inventory and status
  
  SYNOPSIS
!      diskinfo [-Hp] [-c|-P]
  
  DESCRIPTION
       The diskinfo tool provides information about the disk devices in the
       system.  Because it interacts with the kernel's device management
       subsystem, this tool can be used only from the global zone.  If run in
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  NAME
       diskinfo - provide disk device inventory and status
  
  SYNOPSIS
!      diskinfo [-aHp] [-c|-P]
  
  DESCRIPTION
       The diskinfo tool provides information about the disk devices in the
       system.  Because it interacts with the kernel's device management
       subsystem, this tool can be used only from the global zone.  If run in
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       compact format.
  
       See OUTPUT FIELDS below for a detailed description of each column.
  
  OPTIONS
+      -a      Show all disk bays, including those don't have disks installed.
+ 
       -c      Select compact mode output.  At most one of -c and -P may be
               present on the command line.
  
       -H      Do not print a header.  This provides output suitable for passing
               into text processing tools.
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                 This field is available in all output modes.
  
  SEE ALSO
       fmd(1M), prtvtoc(1M), sd(7D)
  
! illumos                          July 20, 2016                         illumos
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                 This field is available in all output modes.
  
  SEE ALSO
       fmd(1M), prtvtoc(1M), sd(7D)
  
! illumos                         October 6, 2017                        illumos