1，备份数据库。
 
2.2 扫描磁盘
echo 1 > /sys/class/fc_host/host3/issue_lip
echo 1 > /sys/class/fc_host/host4/issue_lip
3，更改磁盘属性
chown oracle:oinstall /dev/mapper/3PART*
4，备份ocr
./ocrconfig -manualbackup 
./ocrconfig -showbackup
5，新建asm磁盘组
create diskgroup SYSDG external redundancy disk '/dev/mapper/3PARVOT01','/dev/mapper/3PARVOT02','/dev/mapper/3PARVOT03'；
6，迁移votedisk
crsctl query css votedisk
crsctl replace votedisk +SYSDG
crsctl query css votedisk
7，迁移ocr
ocrcheck
ocrconfig -add +SYSDG
ocrconfig -delete +DATA
ocrcheck
8，迁移asmspfile
sqlplus / as sysasm
show parameter spfile
create pfile='/home/oracle/asmpfilebak.ora' from spfile;
create spfile='+SYSDG' from pfile='/home/oracle/asmpfilebak.ora'
9，更换asm磁盘到新存储
alter diskgroup DATA 
add disk
'/dev/mapper/3PARDATA01',
'/dev/mapper/3PARDATA02',
'/dev/mapper/3PARDATA03',
'/dev/mapper/3PARDATA04',
'/dev/mapper/3PARDATA05',  
drop disk
DATA_0000,DATA_0001,DATA_0002,DATA_003,DATA_0004 rebalance power 11;


alter diskgroup DATA02 
add disk
'/dev/mapper/3PARDATA06',
'/dev/mapper/3PARDATA07',
'/dev/mapper/3PARDATA08',
'/dev/mapper/3PARDATA09',
'/dev/mapper/3PARDATA10',
'/dev/mapper/3PARDATA11',
'/dev/mapper/3PARDATA12',  
drop disk
DATA_0005,DATA_0006,DATA_007,DATA_0008,DATA_0009,DATA_0010,DATA02_0006 rebalance power 11;




10,检查集群和数据库状态
crsctl stat res -t


11，添加新磁盘到磁盘组


alter diskgroup DATA02 add disk '/dev/mapper/3PARDATA13' rebalance power 10;
alter diskgroup DATA add disk '/dev/mapper/3PARDATA14' rebalance power 10;




12，检查集群状态，启动数据库
检查机器状态
crsctl stat res -t
启动数据库
startup