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