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

问题描述

released channel: c1
released channel: c2
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of delete command at 11/18/2019 12:00:43
RMAN-06091: no channel allocated for maintenance (of an appropriate type)

解决办法

RMAN> allocate channel for maintenance type disk;

allocated channel: ORA_MAINT_DISK_1
channel ORA_MAINT_DISK_1: SID=2967 instance=cisdb1 device type=DISK

RMAN> delete force noprompt expired backup;

RMAN> delete force noprompt obsolete device type disk;