ORA-10458: standby database requires recovery

错误描述：

在使用duplicate from active database 创建物理ADG后，启动备库时提示如下信息：

idle> startup pfile=initora11g.ora

ORACLE instance started.

Total System Global Area  368263168 bytes

Fixed Size                  1336596 bytes

Variable Size             268438252 bytes

Database Buffers           92274688 bytes

Redo Buffers                6213632 bytes

Database mounted.

ORA-10458: standby database requires recovery

ORA-01152: file 1 was not restored from a sufficiently old backup

ORA-01110: data file 1: '/oradata/ora11g/system01.dbf'

alter 日志中的信息如下：

ARC1: Becoming the heartbeat ARCH

Signalling error 1152 for datafile 1!

Beginning standby crash recovery.

Serial Media Recovery started

Managed Standby Recovery starting Real Time Apply

Media Recovery Waiting for thread 1 sequence 9

Thu Feb 21 13:44:31 2013

FAL[client]: Failed to request gap sequence

 GAP - SCN range: 0x0000.000d2255 - 0x0000.000d2255

 DBID 4173278619 branch 777078497

FAL[client]: All defined FAL servers have been attempted.

-------------------------------------------------------------

Check that the CONTROL_FILE_RECORD_KEEP_TIME initialization

parameter is defined to a value that is sufficiently large

enough to maintain adequate log switch information to resolve

archivelog gaps.

-------------------------------------------------------------

错误分析：
原来standby 数据库的 FAL_SERVER 和 FAL_CLIENT 的 参数值是 net service name ,不是db_unique_name 。

这两个值只对 standby 角色的数据库起作用，是解决 archive gap的重要参数，因此不能写错了。

The FAL client and server are configured using the FAL_CLIENT and FAL_SERVER initialization parameters that are set on the standby database

FAL_SERVER：Specifies the network service name that the standby database should use to connect to the FAL server. It can consist of multiple values in a list.

FAL_CLIENT：Specifies the network service name that the FAL server should use to connect to the standby database.

另外：
primary 角色数据库的 LOG_ARCHIVE_DEST_2='SERVICE=.......  也是net_service_name

SERVICE=net_service_name

Specifies a valid Oracle Net service name (SERVICE=net_service_name) that identifies the remote Oracle database instance to which redo data will be sent. Each destination must specify either the LOCATION or the SERVICE attribute. There is no default net service
name.

解决方法：

根据备库中tnsname.ora文件中的网络名修改以下两个参数，再重启库。

FAL_SERVER=‘’  --引号内的值写备库tnsname.ora文件中连接主库的连接标识符。

FAL_CLIENT=‘’    --引号内的值写备库tnsname.ora文件中连接备库的连接标识符。