# CMMVC8023E

The initialize or create system operation has failed because the partner node canister is already a member of a system.

#### Explanation

You cannot initialize or create a system on a node canister whose partner is already defined as part of a system. A system ID is defined when a system is initialized or created, and a system ID is already defined for the partner node canister.

#### User response

Ensure that the partner node canister of a node canister on which you attempt to create a system is not already defined as a member of a system. See Resolving a problem topics in the Troubleshooting section of the Information Center.