The nzinitsystem command
Use the nzinitsystem command only under the direction of Technical Support. This is a dangerous command and must be used with extreme caution to avoid loss of data and system behavior.
The nzinitsystem command re-initializes a system by overwriting the catalog information on the host, which results in loss of data. Typically this command is used to re-initialize a test system when you want to remove all existing database information on that system. In extreme cases, this command might be used to recover a system that has been altered beyond repair, and Support has identified that reinitialization and restores are required for recovery.