Running multiple versions of FM/Db2

This topic explains how you can install multiple different versions of FM/Db2.

Attention: You must ensure that each FM/Db2 installation is completely independent of any others.
In particular, you must ensure that:
  • Different (and unique) plan and package names are used for each FM/Db2 installation.
  • The FM/Db2 plan and packages are bound using the appropriate DBRM modules for each version of FM/Db2.
  • Each version of FM/Db2 uses a unique FMN2POPT module, and that module must specify the correct plan name for that version of FM/Db2.
  • When FM/Db2 is used to access remote Db2® systems, the plan and packages for each FM/Db2 version must be bound on every Db2® system that might be accessed using FM/Db2.

The notes below cover the situation where an existing version (say version n) of FM/Db2 is installed. A new version (say n+1) of FM/Db2 is available and will be installed. The two versions are to be run concurrently while acceptance testing is completed for the newer version.

The default plan names and package names are used for the existing version of FM/Db2 that is already installed:
  • FMN2PLAN
  • FMN2GEN
  • FMN2PLPK
  • FMN2GNPK
For the new version of FM/Db2, select new plan and package names, for example:
  • FMN2PLND (instead of FMN2PLAN)
  • FMN2GEND (instead of FMN2GEN)
  • FMN2PLPD (instead of FMN2PLPK)
  • FMN2GNPD (instead of FMN2GNPK)

Any new names can be selected as long as they are different to all other FM/Db2 plan and package names that are already in use.

For the new version of FM/Db2, modify the sample bind jobs FMN2BNnP and FMN2BNnK as appropriate.

Run the modified bind jobs, both the bind plan and bind package, on every Db2® system. Ensure that the DBRM library specified in the new bind job is for the new version of FM/Db2.

Modify the sample FMN2POPT job for the new version of FM/Db2. Specify the new plan names in the FMN2SSDM macro definition for each Db2® system that FM/Db2 will access, either directly or remotely, as shown below: 
FMN2SSDM  SSID=XXXX,PLAN=FMN2PLND,PLAN2=FMN2GEND

Assemble the new FMN2POPT module, and ensure that this is available when a user runs the new version of Db2®.

For information about modifying FMN2POPT, see Changing the default options. For information about FMN2SSDM, see FMN2SSDM.