1、1：关闭数据库shutdown immediate
2、2：卸载挂载lvm存储是通过iscsi映射到服务器上，然后通过创建vg ，再创建逻辑卷，挂载逻辑卷，将数据文件存放在逻辑卷上。[root@DB01 ~]# df -hFilesystem Size Used Avail Use% Mounted on/dev/sda1 897G 771G 80G 91% /tmpfs 16G 0 16G 0% /dev/shm/dev/mapper/OraBack-backupone 6.9T 3.8T 2.8T 58% /backup/oracle/orcl/fullbackup/dev/mapper/OraBack-backuptwo 6.9T 1.5T 5.1T 23% /backup/oracle/orcl/archbackup/dev/mapper/OraBack-backupthree 1008G 8.5G 949G 1% /backup/oracle/orcl/ctlbackup/dev/mapper/OraBack-orcl 3.0T 1001G 1.9T 35% /zxx_orcl[root@DB01 ~]# umount /backup/oracle/orcl/fullbackup[root@DB01 ~]# umount /backup/oracle/orcl/archbackup[root@DB01 ~]# umount /backup/oracle/orcl/ctlbackup[root@DB01 ~]# umount /zxx_orcl
3、3：确定网络正常后激活VG并手动挂载逻辑卷确定服务器到存储的网络正常后，重启服务器[root@DB01 ~]# rebootBroadcast message from root (pts/2) (Thu Aug 27 10:26:17 2015):The system is going down for reboot NOW!重启服务器后可以看到：[root@DB01 ~]# fdisk -lDisk /dev/sda: 997.9 GB, 997998985216 bytes255 heads, 63 sectors/track, 121333 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System/dev/sda1 * 1 120810 970406293+ 83 Linux/dev/sda2 120811 121332 4192965 82 Linux swap / SolarisNote: sector size is 4096 (not 512)Disk /dev/sdb: 19993.0 GB, 19993039208448 bytes255 heads, 63 sectors/track, 303835 cylindersUnits = cylinders of 16065 * 4096 = 65802240 bytes存储挂载过来了。lvscan扫描逻辑卷，如果逻辑卷处于失活状态，这时候需要激活VG：vgchange -ay /dev/OraBack激活之后，lvscan扫描发现逻辑卷都处于active状态了。可以手动挂载了
4、4：动挂载LVMmount lvm名称 挂载目录（一定要和之前的一一对应）lvm名称通过lvscan扫描获取。挂载成功之后需要验证挂载目录是否可以正常读写mount /dev/mapper/OraBack-backupone /backup/oracle/orcl/fullbackupmount /dev/mapper/OraBack-backuptwo /backup/oracle/orcl/archbackup/mount /dev/mapper/OraBack-backupthree /backup/oracle/orcl/ctlbackup/mount /dev/mapper/OraBack-orcl /zxx_orcl/[root@DB01 ~]# df -hFilesystem Size Used Avail Use% Mounted on/dev/sda1 897G 768G 83G 91% /tmpfs 16G 0 16G 0% /dev/shm/dev/mapper/OraBack-backupone 6.9T 3.8T 2.8T 58% /backup/oracle/orcl/fullbackup/dev/mapper/OraBack-backuptwo 6.9T 1.5T 5.1T 23% /backup/oracle/orcl/archbackup/dev/mapper/OraBack-backupthree 1008G 8.5G 949G 1% /backup/oracle/orcl/ctlbackup/dev/mapper/OraBack-orcl 3.0T 1001G 1.9T 35% /zxx_orcl[root@DB01 ~]# cd /zxx_orcl/[root@DB01 zxx_orcl]# lsaaaa awrrpt_1_28687_28688.html backup lost+found oradata[root@DB01 zxx_orcl]# rm -rf awrrpt_1_28687_28688.html[root@DB01 zxx_orcl]# cd aaaa/挂载目录能够正常读写。
5、5：启动数据库这时候我们发现/zxx_orcl的数据文件还是处于recover，再确定存储正常之后，就可以进行恢复工作了！
6、6：恢复处于recover状态的数据文件recover datafile 11 ;recover datafile 10 ;recover datafile 9 ;recover datafile 8 ;recover datafile 7 ;recover datafile 6 ;recover datafile 31 ;recover datafile 32 ;recover datafile 33 ;recover datafile 34 ;recover datafile 35 ;recover datafile 36 ;recover datafile 37 ;recover datafile 38 ;recover datafile 39 ;recover datafile 40 ;recover datafile 41 ;recover datafile 42 ;recover datafile 43 ;recover datafile 44 ;recover datafile 45 ;recover datafile 46 ;recover datafile 47 ;recover datafile 48 ;数据文件恢复之后，会变成offline状态，这时候需要将数据文件online
7、7：online之前恢复后的数据文件ALTER DATABASE DATAFILE 11 online;
