RMAN-03002: failure of delete command at

執行備份腳本，報了以下錯誤 ，對應的命令：DELETE noprompt OBSOLETE;

用rman備份數據庫時，從日誌看到備份有些錯誤

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03002: failure of delete command at 08/16/2013 01:01:54

RMAN-06091: no channel allocated for maintenance (of an appropriate type)

 

改成以下命令，正常執行。
allocate channel for maintenance type disk;
delete noprompt obsolete device type disk;