Reinstalling IBM MQ for IBM i

We can reinstall IBM MQ for IBM i without losing any of your data.

When you reinstall IBM MQ for IBM i, the system checks whether the IBM MQ configuration file (mqs.ini) exists. If the file exists, it is kept and used with the newly installed system. If the file does not exist, an empty mqs.ini file is placed in the directory /QIBM/UserData/mqm.

All data that we have in the UserData directory is referenced by the newly installed system. In addition, all the queue manager-associated libraries containing journal and receiver information are referenced by the new system.