1
迁移方式
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1 现有环境和迁移目标
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2 迁移涉及文件
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3 迁移方式
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4 迁移耗时估算
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5 优点、缺点
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2
迁移前的准备工作
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2.1 迁移前的信息确认和备份(停机前操作)
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2.2 识别存储并创建基于新存储的磁盘组(停机前操作)
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3
正式迁移步骤
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3.1 停止业务系统和除节点 1 外的数据库实例
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3.2 开始迁移 database 控制文件
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3.3
迁移
database
数据文件
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3.4 数据文件迁移后的验证
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3.5 迁移临时表空间
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3.6 迁移在线重做日志(redo log)
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3.7 迁移 OCR
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3.8 迁移 Votedisk
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3.9 迁移 database spfile
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3.10 迁移 asm spfile 并重启所有节点 CRS
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4
迁移前后信息比对、验证和收尾工作
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4.1 技术验证
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4.2 业务验证
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4.3 迁移完成后发起 rman 全备
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4.4 删除 asm 原磁盘组
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3.5 删除原存储设备信息并取消 mapping
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5
回退步骤
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