During processing of command export command, an invalid value is encountered for the SERIALIZATION parameter for copy group copy group name, in domain domain name, policy set policy set name, management class management class name.
Export processing continues, but the exported data contains an unknown SERIALIZATION value for this copy group. If this data is imported, the default or existing SERIALIZATION value is used.
Update the SERIALIZATION value for this copy group and restart the export command. Alternatively, use the export data with the unknown value, and check and update the SERIALIZATION value after import processing has been performed.