Memorex LOCK - VERSION 2-24 Información técnica Pagina 322

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Setting DB2 Tape Output Functions
7-54 User Reference
Connectivity Systems, Inc.—Copyright © 2006
Use Pursuant to Company Instructions
Setting DB2 Tape Output Functions
Description DB2 is a long running task that manages database files in a VSE
environment. DB2 has the ability to archive database files and their
corresponding journal files. This is done by invoking the VSE Operator
Communications Facility in the DB2 partition, for example, MSGxx,
where xx is the DB2 partition ID. DB2 then prompts the console operator
with various questions that initiates the archive process.
If BIM-EPIC is to control the DB2 archive tapes, the LUB-allocation
process must be suppressed. This is because both BIM-EPIC and DB2
will want to manage the tape device allocation process, thereby causing a
conflict.
The technique described below allows BIM-EPIC to control DB2 output
tapes. The technique is specific to the DB2 ARCHIVE process, but
should also work for other DB2 tape output operations.
BIM-EPIC
Requirements
The BIM-EPIC LUB-allocation process must be suppressed. This is done
using any of the following methods:
Setting TAPLUB=NO; however, this may not be desirable for
non-DB2 processing
Using the TLBL option code 64 on each DB2 archive output tape
Defining each DB2 archive tape dataset name in the BIM
Catalog; do not specify a SYS number in the definition
Using prime dataset names; do not catalog these DSNs as
sub-datasets
If you use TAPLUB=YES or nnn, each DB2 archive TLBL should use
the TLBL option code 64. However, you can use the Unload At Close
TLBL option code 2. If both TLBL options are desired, the option entered
for the TLBL will be 66 (TLBL option code 64 plus TLBL option code
2).
Once the console operator has requested an archive, DB2 will prompt for
the address of a tape drive to use for archive output. Respond with the
drive address (cuu) of any available tape device.
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