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Commit 81b80f2e authored by Victor Kotlyar's avatar Victor Kotlyar
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Ported commits from castor/master for general,drive,volume SCSI statistics:

fa889fed2541e22179b5e035d863f87e7be18fb9
  CASTOR-5322 RFE: Enhance tapeserverd logs with SCSI tape drive
    statistics

b13f495e4ee229b2469f9470a2ffa6b4003a29ec
  Fix for mhtvl scsi log sense exceptions

ad71058fbcb6de85e0440797d7ffa5358e26bf89
  CASTOR-5329 Enhance tape statistics

806e48f4285122d8ab9f118364a15e740518028f
  CASTOR-5332 RFE: Reduce log level to INFO with MHVTL - SCSI Statistics
    could not be acquired from drive

79c5a4c2c36b7acc5b10505ca1694fd521fc6832
c7f6d4d7aaa564b37c2b36c3110dfe2fc96ec970
  Move volume SCSI statistics inside the dtor of TapeCleaningMove volume
    SCSI statistics inside the dtor of TapeCleaning

  ## Description

  When first introduced volume SCSI Statistics (at the moment
  IBM-specific), we explicitly put the function after the unmount of the
  tape was done due to an invalid file descriptor error occurring during
  the SCSI query.

  This bug no longer occurs for IBM drives.
  This may be attributed to the update of firmware of the IBM drives

  Apart from the change of the position of the changes, there is no
  alteration in terms of the metrics reported from the drive to the logs.

  ## Testing

  The tests the new code has been through are:
    * Write/Read file on IBM lib0 drive *(older one)*
    * Write/Read file on IBM lib4 drive *(newer one)*
    * Write/Read file on Oracle T10k drive
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