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主机、镜像分别MASTER KEY。
主机执行:
USE master; CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'password'; CREATE CERTIFICATE HOST_A_cert WITH SUBJECT = 'HOST_A certificate' , START_DATE = '01/01/2008'; |
镜像执行:
USE master; CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'password'; CREATE CERTIFICATE HOST_B_cert WITH SUBJECT = 'HOST_B certificate', START_DATE = '01/01/2008'; |
这个MASTER KEY对于每个sql server实例唯一的,如果数据库中已经创建了MASTER KEY,可以用如下的sql删除之后重新执行:
DROP MASTER KEY |
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主机、镜像分别创建EndPoint
主机执行:
CREATE ENDPOINT Endpoint_Mirroring STATE = STARTED AS TCP ( LISTENER_PORT=5022 , LISTENER_IP = ALL ) FOR DATABASE_MIRRORING ( AUTHENTICATION = CERTIFICATE HOST_A_cert , ENCRYPTION = REQUIRED ALGORITHM AES , ROLE = ALL ); |
镜像执行:
CREATE ENDPOINT Endpoint_Mirroring STATE = STARTED AS TCP ( LISTENER_PORT=5022 , LISTENER_IP = ALL ) FOR DATABASE_MIRRORING ( AUTHENTICATION = CERTIFICATE HOST_B_cert , ENCRYPTION = REQUIRED ALGORITHM AES , ROLE = ALL ); |
EndPoint 貌似也是唯一的,如果已经提示错误如没有权限之类的,可以先删除创建过的EndPoint(如果你用图形界面创建过镜像则ENDPOINT的名称默认为"镜像")
DROP ENDPOINT 镜像 |
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备份证书,将主机和镜像的证书互换
主机执行
BACKUP CERTIFICATE HOST_A_cert TO FILE = 'D:\HOST_A_cert.cer'; |
镜像执行
BACKUP CERTIFICATE HOST_B_cert TO FILE = 'D:\HOST_B_cert.cer'; |
将备份好的证书文件相互copy
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同步login
主机执行
CREATE LOGIN HOST_B_login WITH PASSWORD = 'password'; CREATE USER HOST_B_user FOR LOGIN HOST_B_login; CREATE CERTIFICATE HOST_B_cert AUTHORIZATION HOST_B_user FROM FILE = 'D:\HOST_B_cert.cer'; GRANT CONNECT ON ENDPOINT::Endpoint_Mirroring TO [HOST_B_login]; |
镜像执行
CREATE LOGIN HOST_A_login WITH PASSWORD = 'password'; CREATE USER HOST_A_user FOR LOGIN HOST_A_login; CREATE CERTIFICATE HOST_A_cert AUTHORIZATION HOST_A_user FROM FILE = 'D:\HOST_A_cert.cer'; GRANT CONNECT ON ENDPOINT::Endpoint_Mirroring TO [HOST_A_login]; |
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经过以上步骤,两个sql server 实例的准备工作就差不多了,加入我们要同步的数据库为billing。
- 首先将主机上的billing数据库完整备份,在镜像机上创建同名数据库,用主机的备份还原(选择覆盖现有数据库以及RESTOR WITH NORECOVERY),还原后数据库的状态为"正在还原"。
- 将主机的billing数据库的事务日志备份,同样在镜像机上还原。
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下面我们就要开始执行镜像的同步了,
镜像执行
ALTER DATABASE Billing SET PARTNER = 'TCP://主机IP:5022'; |
主机执行
ALTER DATABASE Billing SET PARTNER = 'TCP://镜像IP:5022'; |
如遇错误,首先保证防火墙等是否将相关端口屏蔽,sql server是否允许远程连接等,如果还是没有解决问题,如提示'TCP://镜像IP:5022'无法访问,
那么————————————"重启"!
完成后主机数据库显示"主题-已同步",镜像显示"镜像-已同步/正在还原"。
也许你还会用到如下语句:
关闭镜像
ALTER DATABASE Billing SET PARTNER OFF |
在主机执行一下sql切换主机和镜像
USE MASTER Go ALTER DATABASE Billing SET PARTNER FAILOVER Go |