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3.1.7 Magnetic Tape Media Reliability Report


The Magnetic Tape Media Reliability Report provides a concise
report of the tape volumes that have encountered permanent or
temporary errors during a selected current period and a
previous period of time.  The objective of the report is to
highlight the tape media failures that have occurred and that
some corrective action can be taken.

The following information is provided in the Magnetic Tape
Media Reliability Report:

     VOLUME SERIAL - the six-character volume serial number
          for the magnetic tape volume

     NO. OF MOUNTS - the number of times the volume was
          mounted during the selected current period of time

     SIO COUNT - the number of Start I/O operations issued to
          the volume.

     PERMANENT ERRORS - the number of permanent read and
          write errors during the current period.  Any
          permanent failure indicates that an unrecoverable
          error has occurred.  The volume could be bent or
          crimped or the oxide surface could be worn.

The following information appears for the current period and
a specified previous period:

     TEMPORARY ERRORS - the number of temporary read and
          write errors during the period.  Only temporary
          errors that are not associated with permanent
          errors are shown.  If a number of temporary errors
          occurred, followed by a permanent error, only the
          permanent error will be counted.

     SIO CT/TEMP ERR - the ratio of the Start I/O count to
          the total number of temporary read and write errors
          for the period.  A small number for the ratio of
          SIO operations to temporary errors is generally an
          indication of a media problem.

INQUIRY ID:

     SRLLS3

DATA SOURCE (file/timespan):

     SRLMMR at the DETAIL or DAYS timespan.

DATA ELEMENTS USED:

Following is the data element used for this report:

___________________________________________________________
|          |                                               |
|  FILE    |               DATA ELEMENTS                   |
|__________|_______________________________________________|
|          |                                               |
|  SRLMMR  | MMRMTS   MMRTEMPR MMRTEMPW MMRPERMR MMRPERMW  |
|          | MMRSIOCT                                      |
|          |                                               |
|__________|_______________________________________________|

CA 09:15 TUESDAY, MAY 6, 2008 1 CA MICS I/S MANAGEMENT SUPPORT SYSTEM MAGNETIC TAPE MEDIA RELIABILITY | DEVICE TYPE 3480 | ----------------------------------------------------------------------------------------------------------------------------------+ | | | | TUE 06MAY08 - TUE 06MAY08 | TUE 29APR08 - MON 05MAY08 | | | NO. OF | SIO | PERMANENT ERRORS | TEMPORARY ERRORS | SIO CT / | TEMPORARY ERRORS | SIO CT / | | VOLUME SERIAL | MOUNTS | COUNT | READ WRITE | READ WRITE | TEMP ERR | READ WRITE | TEMP ERR | | ---------------+--------+-------+------------------+------------------+----------+------------------+----------+------------------+ AG3543 | 12 | 28501 | 0 0 | 2 0 | 14251 | 0 0 | 0 | | AJI522 | 12 | 10878 | 2 0 | 2 0 | 5439 | 6 0 | 4563 | | GR5132 | 2 | 7010 | 0 0 | 26 0 | 270 | 0 0 | 0 | | X24571 | 2 | 975 | 0 0 | 43 0 | 23 | 0 0 | 0 | | X25378 | 3 | 310 | 0 0 | 0 2 | 155 | 0 1 | 340 | | X37642 | 1 | 4649 | 0 0 | 1 1 | 4649 | 0 0 | 0 | | X50272 | 1 | 2995 | 0 0 | 0 17 | 176 | 0 0 | 0 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ----------------------------------------------------------------------------------------------------------------------------------+


 Figure 3-8.  Magnetic Tape Media Reliability Report