Oracle案例03——RMAN-06091: no channel allocated for maintenance (of an appropriate type)

同事收到告警磁盘空间不足，说删除归档无法直接在rman中进行操作，让帮看下，具体处理方法如下：

一、错误信息

在rman执行命令

crosscheck archivelog all;

delete noprompt archivelog all completed before 'sysdate-30';

报错信息如下

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of delete command at 03/28/2018 19:31:03
RMAN-06091: no channel allocated for maintenance (of an appropriate type)

根据错误日志提示可以判断由于rman备份通道调整为非磁盘通道，而默认我们设置的通道只磁盘通道，所以这里无法直接通过上述命令删除

二、解决方案

通过命令查看当前rman通道设置

RMAN> show all;

CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default

日常备份通过NBU备份，所以需要调整磁盘通道维护状态为磁盘

allocate channel for maintenance type disk;

然后进行上述删除操作。

其他参考命令：

 delete obsolete device type disk;
 allocate channel for maintenance device type 'sbt_tape' ;

 

转载于:https://www.cnblogs.com/rangle/p/8670296.html