我们知道rman的配置选项中有控制文件自动备份的设定“ RMAN>configure controlfile autoback up on ”它是在控制文件变更的时候自动备份的,对不?那么控制文件快照的配置
RMAN>configure snapshot controlfile name to 'fullpath+name'
请问这个指令配置以后一般会在什么时候执行呢?它和自动备份的意义是undo 和redo的那种快照的意思么?
11) CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/opt/oracle/product/ora10g/dbs/snapcf_db10g.f';
When RMAN needs to resynchronize from a read-consistent version of the control file, it creates
a temporary snapshot control file. RMAN needs a snapshot control file only when resynchronizing with
the recovery catalog or when making a backup of the current control file.
This configuration specifies where the snapshot controlfile is created.
RMAN> CONFIGURE SNAPSHOT CONTROLFILE NAME TO 'D:\ORACLE\SNAPORA.CTL';
snapshot controlfile name set to: D:\ORACLE\SNAPORA.CTL
new RMAN configuration parameters are successfully stored