Lewis' Blog Tales from the trenches of information technology

8Oct/140

JFS chkdsk options on OS/2

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As most of us OS/2 users know by now, IBM never fully finished fleshing out the original port of JFS to OS/2 from AIX. This is especially true for the documentation of the (few) utilities related to JFS (see my other post concerning the JFS service log).

Once again, my friend Steven Levine comes to rescue with his always-handy notes on the subject, which I relate here for posterity:

Check FS content

  Usage: chkdsk drive: [/A] [/B] [/C] [/D] [/F[:n]] [/O] [/P] [/V]

    /A      Enable autocheck mode (undocumented)
    /B      Perform LVM Bad Block List utility processing only
    /C      Process ifdirty after logredo
    /D      Enable debug mode (undocumented)
            all log messages written to stdout in english
    /F[:n]  Full check
            0 => read only (default)
            1 => prompt for permission for each repair
            2 => preen (default if n omitted)
            3 => Assume permission given for all repairs.
                 If exiting with clean file system, invoke LVM Bad Block
                 List utility processing on the way out.
            Note: :1 and :2 are converted to :3
    /O      Omit logredo (undocumented)
    /P      Enable pmchkdsk mode (undocumented)
    /V      Verbose messaging (ignored)

  Both / and - prefix supported
  Options are case-insenitive

  Called as

    chkdsk drive: /F /A [/C]

  for autocheck

 

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