1. 数据库信息
操作系统版本  : OEL6.5 x64 
数据库版本    : Oracle 11.2.0.4 x64 RAC   
本文针对Oracle 11.2.0.4 x64 RAC for OEL6.5上添加存一块存储磁盘，并入原ASM卷组用于扩展存储空间。详细修改过程如下。
2. 添加存储磁盘
给两节点node1,node2 10GB磁盘空间，添加过程略。确认两节点磁盘识别。
[root@node1 ~]# fdisk -l
Disk /dev/sda: 32.2 GB, 32212254720 bytes 
255 heads, 63 sectors/track, 3916 cylinders   
Units = cylinders of 16065 * 512 = 8225280 bytes   
Sector size (logical/physical): 512 bytes / 512 bytes   
I/O size (minimum/optimal): 512 bytes / 512 bytes   
Disk identifier: 0x0008c7f6
  Device Boot      Start        End      Blocks  Id  System 
/dev/sda1  *          1          64      512000  83  Linux   
Partition 1 does not end on cylinder boundary.   
/dev/sda2              64        3917    30944256  8e  Linux LVM
Disk /dev/mapper/vg_node1-LogVol01: 27.4 GB, 27388805120 bytes 
255 heads, 63 sectors/track, 3329 cylinders   
Units = cylinders of 16065 * 512 = 8225280 bytes   
Sector size (logical/physical): 512 bytes / 512 bytes   
I/O size (minimum/optimal): 512 bytes / 512 bytes   
Disk identifier: 0x00000000
Disk /dev/mapper/vg_node1-swap: 4294 MB, 4294967296 bytes 
255 heads, 63 sectors/track, 522 cylinders   
Units = cylinders of 16065 * 512 = 8225280 bytes   
Sector size (logical/physical): 512 bytes / 512 bytes   
I/O size (minimum/optimal): 512 bytes / 512 bytes   
Disk identifier: 0x00000000
Disk /dev/sdb: 2147 MB, 2147483648 bytes 
67 heads, 62 sectors/track, 1009 cylinders   
Units = cylinders of 4154 * 512 = 2126848 bytes   
Sector size (logical/physical): 512 bytes / 512 bytes   
I/O size (minimum/optimal): 512 bytes / 512 bytes   
Disk identifier: 0x00000000
Disk /dev/sdc: 2147 MB, 2147483648 bytes 
67 heads, 62 sectors/track, 1009 cylinders   
Units = cylinders of 4154 * 512 = 2126848 bytes   
Sector size (logical/physical): 512 bytes / 512 bytes   
I/O size (minimum/optimal): 512 bytes / 512 bytes   
Disk identifier: 0x00000000
Disk /dev/sdd: 2147 MB, 2147483648 bytes 
67 heads, 62 sectors/track, 1009 cylinders   
Units = cylinders of 4154 * 512 = 2126848 bytes   
Sector size (logical/physical): 512 bytes / 512 bytes   
I/O size (minimum/optimal): 512 bytes / 512 bytes   
Disk identifier: 0x00000000
Disk /dev/sde: 2147 MB, 2147483648 bytes 
67 heads, 62 sectors/track, 1009 cylinders   
Units = cylinders of 4154 * 512 = 2126848 bytes   
Sector size (logical/physical): 512 bytes / 512 bytes   
I/O size (minimum/optimal): 512 bytes / 512 bytes   
Disk identifier: 0x00000000
Disk /dev/sdf: 2147 MB, 2147483648 bytes 
67 heads, 62 sectors/track, 1009 cylinders   
Units = cylinders of 4154 * 512 = 2126848 bytes   
Sector size (logical/physical): 512 bytes / 512 bytes   
I/O size (minimum/optimal): 512 bytes / 512 bytes   
Disk identifier: 0x00000000
Disk /dev/sdg: 21.5 GB, 21474836480 bytes 
64 heads, 32 sectors/track, 20480 cylinders   
Units = cylinders of 2048 * 512 = 1048576 bytes   
Sector size (logical/physical): 512 bytes / 512 bytes   
I/O size (minimum/optimal): 512 bytes / 512 bytes   
Disk identifier: 0x00000000
Disk /dev/sdh: 21.5 GB, 21474836480 bytes 
64 heads, 32 sectors/track, 20480 cylinders   
Units = cylinders of 2048 * 512 = 1048576 bytes   
Sector size (logical/physical): 512 bytes / 512 bytes   
I/O size (minimum/optimal): 512 bytes / 512 bytes   
Disk identifier: 0x00000000
Disk /dev/sdj: 10.7 GB, 10737418240 bytes
64 heads, 32 sectors/track, 10240 cylinders   
Units = cylinders of 2048 * 512 = 1048576 bytes   
Sector size (logical/physical): 512 bytes / 512 bytes   
I/O size (minimum/optimal): 512 bytes / 512 bytes   
Disk identifier: 0x00000000
Disk /dev/sdi: 21.5 GB, 21474836480 bytes 
64 heads, 32 sectors/track, 20480 cylinders   
Units = cylinders of 2048 * 512 = 1048576 bytes   
Sector size (logical/physical): 512 bytes / 512 bytes   
I/O size (minimum/optimal): 512 bytes / 512 bytes   
Disk identifier: 0x00000000
[root@node1 ~]#