During starting ISCSI fail over I've got next error message " Error Incompatible version of iSCSI failover service". Next version are set at primary node:
Model: Data Storage Software V6
Version: 6.0up35.8101.4452 64bit

Secondary node:
Model: Data Storage Software V6
Version: 6.0up45.8101.4622 64bit

Is it possible to enable failover using this version ? Or update of primary node is necessary step ?