Updating your 32-bit Db2 instances to 64-bit instances (Windows)

If you have more than one 32-bit Db2 copy on your system, you can convert them to 64-bit instances.

About this task


Restrictions

  • Db2 32-bit and 64-bit instances cannot coexist on the same system.
  • You cannot install a 64-bit Db2 copy on a system with multiple 32-bit Db2 copies.
  • You cannot upgrade directly from a 32-bit pre-version 12.1 Db2 copy to a 64-bit Db2 version 12.1 copy. You can upgrade from a 32-bit pre-version 12.1 copy to a 32-bit version 12.1 copy then update from version 12.1 32-bit to version 12.1 64-bit. Refer to the "Upgrading Db2 32-bit servers to 64-bit systems" topic.

Procedure

  1. Move all your 32-bit instances over to one Db2 copy using the db2iupdt command.
  2. Uninstall the 32-bit Db2 copies, except for the one where you have moved all your 32-bit instances over to.
  3. Install Db2 version 12.1 64-bit which will upgrade your 32-bit Db2 version 12.1 instances to 64-bit version 12.1 instances.