SQL Server复制情况下的高可用方案（一）镜像+复制

BACKUP DATABASE [mydb] TO DISK = N‘D:\backup\mydb.bak‘ WITH NOFORMAT, NOINIT,  NAME = N‘mydb-完整数据库备份 ‘, SKIP, NOREWIND, NOUNLOAD,  STATS = 10
GO
BACKUP LOG [mydb] TO  DISK = N‘D:\backup\mydb.trn‘ WITH NOFORMAT, NOINIT,  NAME = N‘mydb-事务日志 备份‘ , SKIP , NOREWIND , NOUNLOAD ,  STATS = 10
GO

RESTORE DATABASE [mydb] FROM  DISK = N‘D:\backup\mydb.bak‘ WITH   FILE = 1,  NORECOVERY ,  NOUNLOAD ,  STATS = 10
GO
RESTORE LOG [mydb] FROM  DISK = N‘D:\backup\mydb.trn‘ WITH   FILE = 1,   NORECOVERY,  NOUNLOAD,  STATS = 10
GO

--创建密钥
CREATE MASTER KEY ENCRYPTION BY PASSWORD = ‘password‘
SELECT * FROM sys.symmetric_keys
--创建证书
CREATE CERTIFICATE cert_3_100
   WITH SUBJECT = ‘HOST_A certificate for database mirroring‘,
   EXPIRY_DATE = ‘1/1/2020‘
SELECT * FROM sys.certificates ;
--创建端点
CREATE ENDPOINT master_instance
   STATE = STARTED
   AS TCP (
      LISTENER_PORT=5022
      , LISTENER_IP = ALL
   )
   FOR DATABASE_MIRRORING (
      AUTHENTICATION = CERTIFICATE cert_3_100
      , ENCRYPTION = REQUIRED ALGORITHM AES
      , ROLE = ALL
   )
SELECT name , role_desc , state_desc , connection_auth_desc , encryption_algorithm_desc
   FROM sys.database_mirroring_endpoints
--备份证书到其他系统
BACKUP CERTIFICATE cert_3_101 TO FILE = ‘d:\cert_3_100.cer‘;
GO  

--创建密钥
CREATE MASTER KEY ENCRYPTION BY PASSWORD = ‘password‘
SELECT * FROM sys.symmetric_keys
--创建证书
CREATE CERTIFICATE cert_3_101
   WITH SUBJECT = ‘HOST_A certificate for database mirroring‘,
   EXPIRY_DATE = ‘1/1/2020‘
SELECT * FROM sys.certificates ;
--创建端点
CREATE ENDPOINT backup_instance
   STATE = STARTED
   AS TCP (
      LISTENER_PORT=5022
      , LISTENER_IP = ALL
   )
   FOR DATABASE_MIRRORING (
      AUTHENTICATION = CERTIFICATE cert_3_101
      , ENCRYPTION = REQUIRED ALGORITHM AES
      , ROLE = ALL
   )
SELECT name , role_desc , state_desc , connection_auth_desc , encryption_algorithm_desc
   FROM sys.database_mirroring_endpoints
--备份证书到其他系统
BACKUP CERTIFICATE cert_3_101 TO FILE = ‘d:\cert_3_101.cer‘;
GO

USE master
--为其他系统创建登录名
CREATE LOGIN login_3_101 WITH PASSWORD = ‘password‘;
SELECT * FROM sys.server_principals
--创建一个使用该登录名的用户
CREATE USER user_3_101 FOR LOGIN login_3_101
SELECT * FROM sys.sysusers
--将证书与用户关联，并将镜像库生成的证书文件放到指定目录中
CREATE CERTIFICATE cert_3_101
   AUTHORIZATION user_3_101
   FROM FILE = ‘d:\cert_3_101.cer‘
SELECT * FROM sys.certificates
--授权对远程镜像端点的登录名的 CONNECT权限，授权完成后，完成对登录到所需的证书身份验证的设置
GRANT CONNECT ON ENDPOINT::master_instance TO login_3_101

USE master
--为其他系统创建登录名
CREATE LOGIN login_3_100 WITH PASSWORD = ‘password‘;
SELECT * FROM sys.server_principals
--创建一个使用该登录名的用户，并将主体库生成的证书文件放到指定目录中
CREATE USER user_3_100 FOR LOGIN login_3_100
SELECT * FROM sys.sysusers
--将证书与用户关联
CREATE CERTIFICATE cert_3_100
   AUTHORIZATION user_3_100
   FROM FILE = ‘d:\cert_3_100.cer‘
SELECT * FROM sys.certificates
--授权对远程镜像端点的登录名的 CONNECT权限，授权完成后，完成对登录到所需的证书身份验证的设置
GRANT CONNECT ON ENDPOINT::backup_instance TO login_3_100