CMMVC9380E The command failed because quorum site cannot be set in standard quorum mode.

Explanation
This error can occur when an attempt is made to assign a quorum site while in
standard quorum mode. Quorum mode can be set to
standard, winner, or
preferred.

User response
Use the chsystem -quorummode command to change the quorum mode to
winner or preferred, and then retry the
command.