Can not find tape drive ID using using 'mtx -f /dev/sg4 status' command

Solution Unverified - Updated -

Issue

  • Can not find tape drive ID using using mtx -f /dev/sg4 status command.

  • mtx -f /dev/sg4 status command shows error Illegal Request

    $ mtx -f /dev/sg4 status
mtx: Request Sense: Long Report=yes
mtx: Request Sense: Valid Residual=no
mtx: Request Sense: Error Code=70 (Current)
mtx: Request Sense: Sense Key=Illegal Request
mtx: Request Sense: FileMark=no
mtx: Request Sense: EOM=no
mtx: Request Sense: ILI=no
mtx: Request Sense: Additional Sense Code = 20
mtx: Request Sense: Additional Sense Qualifier = 00
mtx: Request Sense: BPV=no
mtx: Request Sense: Error in CDB=no
mtx: Request Sense: SKSV=no
READ ELEMENT STATUS Command Failed

Environment

  • Red Hat Enterprise Linux 5, 6, 7
  • Tape devices, medium changer

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