设置卷的主备优先级或自动切换(集群版适用) 请求语法PUT /rest/v1/block/lun HTTP/1.1 Date: date Host: ip:port Authorization: authorization { "action": action, "lunList": [ lunName,lunName… ], "autoFailback": autoFailback, "priority": [ SeverID,ServerID… ], "statusDriven": statusDriven } 请求参数参数类型描述是否必须