格式化相应的磁盘，为后续ASM磁盘使用；
[root@bogon mapper]# fdisk -c /dev/mapper/oracle-arch
[root@bogon mapper]# fdisk -c /dev/mapper/oracle-data
[root@bogon mapper]# fdisk -c /dev/mapper/oracle-grid
[root@bogon mapper]# fdisk -c /dev/mapper/oracle-sys
[root@bogon mapper]# kpartx -a /dev/mapper/oracle-arch
[root@bogon mapper]# kpartx -a /dev/mapper/oracle-sys
[root@bogon mapper]# kpartx -a /dev/mapper/oracle-data
[root@bogon mapper]# kpartx -a /dev/mapper/oracle-grid
[root@bogon mapper]# ls -lsa
total 0
0 drwxr-xr-x. 2 root root 260 Jun 9 12:22 .
0 drwxr-xr-x. 20 root root 4020 Jun 9 12:22 ..
0 crw-------. 1 root root 10, 236 Jun 9 11:09 control
0 lrwxrwxrwx. 1 root root 7 Jun 9 12:16 oracle-arch -> ../dm-4
0 lrwxrwxrwx. 1 root root 7 Jun 9 12:21 oracle-arch1 -> ../dm-6
0 lrwxrwxrwx. 1 root root 7 Jun 9 12:17 oracle-data -> ../dm-5
0 lrwxrwxrwx. 1 root root 7 Jun 9 12:22 oracle-data1 -> ../dm-8
0 lrwxrwxrwx. 1 root root 7 Jun 9 12:17 oracle-grid -> ../dm-2
0 lrwxrwxrwx. 1 root root 7 Jun 9 12:22 oracle-grid1 -> ../dm-9
0 lrwxrwxrwx. 1 root root 7 Jun 9 12:17 oracle-sys -> ../dm-3
0 lrwxrwxrwx. 1 root root 7 Jun 9 12:22 oracle-sys1 -> ../dm-7
0 lrwxrwxrwx. 1 root root 7 Jun 9 11:09 rhel-root -> ../dm-0
0 lrwxrwxrwx. 1 root root 7 Jun 9 11:09 rhel-swap -> ../dm-1