DB2 12 for z/OS: Statt DSNTIJUZ nun 4 x Installations-Jobs
Jo! Ein Installation-Parameter-Job reicht halt einfach nicht mehr, und die Sache wurde auch einfach unhandlich.
Seit DB2 12 for z/OS gibt es also 4 Parameter-Installation Jobs. DSNTIJUZ wird in 4 Jobs aufgeteilt:
- DSNTIJUZ: Define the DB2 subsystem (DSNZPxxx) parameters
- DSNTIJUA: Define the DB2 application defaults
- DSNTIJUM: Define DB2 offline message generator
- DSNTIJUL: Update DDF related information in the BSDS
Und warum das Ganze?
Installation job DSNTIJUZ performs multiple tasks:
– creates the DB2 subsystem parameter (DSNZPxxx) module
– creates the DB2 appplication defaults (DSNHDECP) module
– creates the DB2 offline message CCSID (DSNHMCID) module
– updates DDF settings in the BSDS
This grouping works well for DB2 installation and migration but not afterwards, particularly for maintenance of the DSNZPxxx and DSNHDECP modules. Customers either need to use JCL overrides to execute only specific job steps of DSNTIJUZ or split DSNTIJUZ into several single-purpose
jobs. This is particularly the case in DB2 12 because function level activation can entail changing the default application compatibility (DSN6SPRM.APPLCOMPAT) parameter in DSNZPxxx and the default precompiler SQL level (DSNHDECP.SQLLEVEL) parameter in DSNHDECP.
Weitere Details direkt bei IBM unter https://www-01.ibm.com/support/docview.wss?uid=swg1PI85657
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