DM7 达梦数据库 DMRMAN 报错 os_pipe2_conn_server open failed 解决方法
在DMRMAN中执行命令报错(DMAP服务后台正常启动):RMAN>BACKUPDATABASE'/dm/dmdbms/data/DAMENG/dm.ini';BACKUPDATABASE'/dm/dmdbms/data/DAMENG/dm.ini';checkingifthedatabaseundersystempath[/dm/dmdbms/data/DAMENG]isrunning...[4