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When to migrate from db2 11 to db2 12?


Asked by Amelia Todd on Dec 02, 2021 FAQ



Db2 11 for z/OS prerequisites for migration to Db2 12 for z/OS … •Avoid autobindon pre-DB2 10 for z/OS plansand packages under Db2 12 for z/OS
In respect to this,
Inactive members that never started with the fallback SPE applied in Db2 11 cannot start in Db2 12 or Db2 11 after migration to Db2 12 and activation of function level 500 on any other member. When you start Db2, the code level of the starting Db2 is compared to the code level that is required by the current Db2 catalog.
Just so, To migrate a Db2 for z/OS subsystem to Db2 12: Estimate storage needs for your Db2 12 environment. For more information, see Storage requirements for Db2 for z/OS. Determine the new capabilities that you want use in Db2 12, and make plans for other changes in the new release. For more information, see:
Next,
•RACF changes related to IDAA –RACF ACCESS(CONTROL) on MVS.VARY.TCPIP.DROP(OPERCMDS) •HVSHARE should be 510 TB (default) –Db2 12 for z/OS requires 1 TB of 64-bit shared (private) storage in z/OS (same as Db2 11 for z/OS) –Virtual, not real –Monitor use with IFCIDs 217 and 225 •Plan for real memory increase
Furthermore,
Customers apply DB2 maintenance like they always have Certain maintenance levels will allow for activation of the next function level (FL) FLs are named M5xx\u0003_. M501 is the next FL after base M500. Each FL is associated with one or more new features