XXX系统容灾应急保障预案二分册v2

1、XXX系统存储容灾应急保障预案二分册卓望数码技术（深圳）有限公司2008年7月目录概述3现网存储情况31. CX700存储配置32. CX3-40F存储配置3存储数据恢复实施过程4概述本分册适用于当主用存储EMC CX700存储运行正常，现网的数据库主机（XXX-dd01和XXX-dd02）运行故障的情况下，怎么切换到容灾主机XXX-etl，利用容灾主机XXX-etl尽快恢复业务。现网存储情况1. CX700存储配置目前CX700中，用于XXX数据库数据的磁盘是Lun1 Lun7以及Lun9-Lun10. 如下所示Lun NumberRAID TypeRAID Group Lun SizeSP

2、 Assigned1RAID101300GBA2RAID102300GBB3RAID10 1300GBB4RAID102300GBA5RAID10170GBA6RAID10270GBB7RAID101100MB9RAID104100GBA10RAID104200GBB1001RAID51300GBA1002RAID52300GBB1003RAID51300GBB1004RAID52300GBA1005RAID5170GBA1006RAID5270GBB1007RAID51100MB1009RAID54100GBA1010RAID54200GBB2. CX3-40F存储配置目前CX3-40F中，

3、用于XXX数据库数据容灾的磁盘是Lun1 Lun7以及Lun9-Lun10. 如下所示Lun NumberRAID TypeRAID Group Lun SizeSP Assigned1RAID101300GBA2RAID102300GBB3RAID10 1300GBB4RAID102300GBA5RAID10170GBA6RAID10270GBB7RAID101100MB9RAID104100GBA10RAID104200GBB 存储数据恢复实施过程当主用存储EMC CX700运行正常，现网的数据库主机（XXX-dd01和XXX-dd02）运行故障的情况下情况下，将采用容灾数据库主机（XXX

4、-etl），进行数据和业务恢复。此时将实施容灾数据库主机（XXX-etl）挂接到主用存储 EMC CX700,此时数据库主机和存储架构如下图： 即：容灾数据库主机（XXX_etl）+EMC CX700，具体恢复实施步骤如下：再进行恢复时可以直接使用每个步骤的内容，进行恢复。1) 把EMC CX700的LUN bind到容灾数据库主机XXX_ETL上，2) 通过ioscan找到CX 700卷命 令备注说明在XXX_ETL：上执行#iosacn fnC disk 在XXX_dd01：上检查mirror卷信息#insf e 安装硬件信息路径#powermt display dev=all #powe

5、rmt config#powermt save检查对应的lun和WWWN信息3) 利用已经备份好的vg map文件做对应VG import命 令备注说明重建设备文件： XXX_ETL：mkdir vg_ora1 mkdir vg_ora2 mkdir vg_ora3 mkdir vg_ora4 mkdir vg_ora5 mkdir vg_ora6 mkdir vg_arch1 mkdir vg_lock mknod /dev/vg_lock/group c 64 0x100000 vg_lockmknod /dev/vg_ora1/group c 64 0x110000 vg_ora1mkn

6、od /dev/vg_ora2/group c 64 0x120000 vg_ora2mknod /dev/vg_ora3/group c 64 0x130000 vg_ora3mknod /dev/vg_ora4/group c 64 0x140000 vg_ora4mknod /dev/vg_ora5/group c 64 0x080000 vg_ora5mknod /dev/vg_ora6/group c 64 0x090000 vg_ora6mknod /dev/vg_arch1/group c 64 0x010000 vg_arch1mknod /dev/vg_arch2/group

7、 c 64 0x020000 vg_arch2重建设备文件导入vg信息:在XXX_ETL：vgimport -s -v -m /tmp/vgbak/vg_ora1.map /dev/vg_ora1vgimport s -v -m /tmp/vgbak/vg_ora2.map /dev/vg_ora2 vgimport s -v -m /tmp/vgbak/vg_ora3.map /dev/vg_ora3 vgimport s -v -m /tmp/vgbak/vg_ora4.map /dev/vg_ora4 vgimport s -v -m/tmp/vgbak/vg_ora5.map /dev

8、/vg_ora5 vgimport s -v -m /tmp/vgbak/vg_ora6.map /dev/vg_ora6vgimport s -v -m /tmp/vgbak/vg_lock.map /dev/vg_lockvgimport s -v -m /tmp/vgbak/vg_arch1.map /dev/vg_arch1vgimport s -v -m /tmp/vgbak/vg_arch1.map /dev/vg_arch2重做vg的import4) 修改用户权限命 令备注说明在XXX_ETL：chown -R oracle:dba /dev/vg_ora1/chown -R o

9、racle:dba /dev/vg_ora2/chown -R oracle:dba /dev/vg_ora3/chown -R oracle:dba /dev/vg_ora4/chown -R oracle:dba /dev/vg_ora5/chown -R oracle:dba /dev/vg_ora6/chown -R oracle:dba /dev/vg_arch1/chown -R oracle:dba /dev/vg_lock/chown -R oracle:dba /dev/vg_arch2/修改用户权限信息5) 将数据库改为双机模式命 令备注说明重新配置MC，启动双机在 XXX

10、_ETL：vgchange -a n /dev/vg_ora1 vgchange -a n /dev/vg_ora2 vgchange -a n /dev/vg_ora3 vgchange a n /dev/vg_ora4 vgchange a n /dev/vg_ora5 vgchange -a n/dev/vg_ora6vhchange a y /dev/vg_arch1mount /dev/vg_arch1/lv_arch1 /arch1vgchange -a y /dev/vg_arch2mount /dev/vg_arch2/lv_arch2 /arch2在XXX_ETL：更改vi

11、/etc/cmcluster.asci更改其中的锁盘路径,这个要根据具体情况才能确认具体的硬件路径.cmcheckconf -v -C /etc/cmcluster/cluster.ascii cmapplyconf -v -C /etc/cmcluster/cluster.asciicmruncl f vcmviewcl v由于现在容灾数据库只采用了一台主机，因此双机起来后，只有一个节点。在XXX_ETL：vgchange -a s -p /dev/vg_ora1 vgchange -a s -p /dev/vg_ora2 vgchange -a s -p /dev/vg_ora3 vgchange -a s -p /dev/vg_