5. OPERATION › 5.2 VCC Data Recording › 5.2.2 VCC-DFHSM Data Record Layout

5.2.2 VCC-DFHSM Data Record Layout

VCCXHSM generates a record that is variable length and
designed for optimum data compaction consistent with some
recognition requirements of the DFHSM portion of the CA MICS
Space Analyzer Option.  The record structure is much simpler
than the format of the VCC records.  The following record
types are written:

    o  Migrated data set record (type 'M')
    o  Backup version record (type 'B')
    o  DASD inventory record (type 'C')
    o  Tape inventory record (type 'T')
    o  Inventory trailer record (type 'Z')

All VCC-DFHSM records have a standard SMF header section.
The VCCRCORD macro, distributed in sharedprefix.MICS.MACLIB,
maps the records.  The record layout is presented segment by
segment as a box diagram.  You may browse the VCCRCORD macro
in the latest release of the product to see detail
information at the field level.

Migrated Data Set Record

The MCDS creates one type 'M' record for each migrated data
set managed by DFHSM.

+-----------------+
|SMF HDR-BASE SEG |
+--+--------------+----------+
   | Type 'M' Subtype Header |
   +-+--------------+--+-----+
     | STORCLAS (if present) |
     +-----------------------+
     | MGMTCLAS (if present) |
     +-----------------------+
     | DATACLAS (if present) |
     +-----------------------+
     | DSNAME  (compacted)   |
     +-----------------------+

Backup Version Record

The BCDS creates one type 'B' record for each backup version
of a data set managed by DFHSM.

+-----------------+
|SMF HDR-BASE SEG |
+--+--------------+----------+
   | Type 'B' Subtype Segment|
   +-+--------------+--+-----+
     | STORCLAS (if present) |
     +-----------------------+
     | MGMTCLAS (if present) |
     +-----------------------+
     | DATACLAS (if present) |
     +-----------------------+
     | DSNAME  (compacted)   |
     +-----------------------+

DASD Inventory Record

One type 'C' record is created for each DASD volume for each
day of DFHSM activity retained in VSR records of DFHSM
control data sets.

+-----------------+
|SMF HDR-BASE SEG |
+--+--------------+----------+
   | Type 'C' Subtype Segment|
   +-+--------------+--+-----+

Tape Inventory Record

One type 'T' record is created for each "type" of tape
managed by DFHSM.  Currently there are 3 types - incremental
backup volumes, migrate volumes, and full volume dump
volumes.

+-----------------+
|SMF HDR-BASE SEG |
+--+--------------+----------+
   | Type 'T' Subtype Segment|
   +-+--------------+--+-----+