查看并生成Multipath配置文件；
[root@bogon Packages]# multipath -ll
Jun 09 11:28:53 | /etc/multipath.conf does not exist, blacklisting all devices.
Jun 09 11:28:53 | A default multipath.conf file is located at
Jun 09 11:28:53 | /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf
Jun 09 11:28:53 | You can run /sbin/mpathconf to create or modify /etc/multipath.conf
[root@bogon Packages]# cp /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf /etc/multipath.conf
[root@bogon Packages]#multipath start
查看多路径所产生的磁盘并获取其WWID，为配置Multipath.conf做准备；
[root@bogon Packages]# fdisk -l | grep " 10.7 GB"
Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520 sectors
Disk /dev/sdc: 10.7 GB, 10737418240 bytes, 20971520 sectors
Disk /dev/sdd: 10.7 GB, 10737418240 bytes, 20971520 sectors
Disk /dev/sdf: 10.7 GB, 10737418240 bytes, 20971520 sectors
Disk /dev/sdg: 10.7 GB, 10737418240 bytes, 20971520 sectors
Disk /dev/sdh: 10.7 GB, 10737418240 bytes, 20971520 sectors
Disk /dev/sdj: 10.7 GB, 10737418240 bytes, 20971520 sectors
Disk /dev/sdk: 10.7 GB, 10737418240 bytes, 20971520 sectors
Disk /dev/sdl: 10.7 GB, 10737418240 bytes, 20971520 sectors
Disk /dev/sdn: 10.7 GB, 10737418240 bytes, 20971520 sectors
Disk /dev/sdo: 10.7 GB, 10737418240 bytes, 20971520 sectors
Disk /dev/sdp: 10.7 GB, 10737418240 bytes, 20971520 sectors
[root@bogon Packages]# fdisk -l | grep " 21.5 GB"
Disk /dev/sde: 21.5 GB, 21474836480 bytes, 41943040 sectors
Disk /dev/sdi: 21.5 GB, 21474836480 bytes, 41943040 sectors
Disk /dev/sdm: 21.5 GB, 21474836480 bytes, 41943040 sectors
Disk /dev/sdq: 21.5 GB, 21474836480 bytes, 41943040 sectors
[root@bogon Packages]# ls -l /dev/disk/by-id/
total 0
lrwxrwxrwx. 1 root root 9 Jun 9 11:09 ata-VMware_Virtual_SATA_CDRW_Drive_01000000000000000001 -> ../../sr0
lrwxrwxrwx. 1 root root 10 Jun 9 11:09 dm-name-rhel-root -> ../../dm-0
lrwxrwxrwx. 1 root root 10 Jun 9 11:09 dm-name-rhel-swap -> ../../dm-1
lrwxrwxrwx. 1 root root 10 Jun 9 11:09 dm-uuid-LVM-lqbtrHjC1YDN1WRYptlr8UJDHwBSKqgAgdEPZJZeAyoqfX9sJjEm7gO9aIji71Gb -> ../../dm-0
lrwxrwxrwx. 1 root root 10 Jun 9 11:09 dm-uuid-LVM-lqbtrHjC1YDN1WRYptlr8UJDHwBSKqgAweG1tRVIKfpakJ0csD3TE1coXJbDB8r2 -> ../../dm-1
lrwxrwxrwx. 1 root root 10 Jun 9 11:09 lvm-pv-uuid-JuUZYx-8bPC-zoP1-4riV-qVxw-4qhJ-2ddb6j -> ../../sda2
lrwxrwxrwx. 1 root root 9 Jun 9 11:23 scsi-14f504e46494c45524e77537957762d34737a312d4d716339 -> ../../sdn
lrwxrwxrwx. 1 root root 9 Jun 9 11:23 scsi-14f504e46494c4552554c536b71612d474539552d4942357a -> ../../sdo
lrwxrwxrwx. 1 root root 9 Jun 9 11:23 scsi-14f504e46494c45526a33566a58622d6b6d4b562d73776f64 -> ../../sdq
lrwxrwxrwx. 1 root root 9 Jun 9 11:23 scsi-14f504e46494c45527748533276382d707978772d686c7a43 -> ../../sdp
[root@bogon Packages]#multipath -v3
..........
14f504e46494c45524e77537957762d34737a312d4d716339 33:0:0:0 sdb 8:16 1 undef
14f504e46494c4552554c536b71612d474539552d4942357a 33:0:0:1 sdc 8:32 1 undef
14f504e46494c45527748533276382d707978772d686c7a43 33:0:0:2 sdd 8:48 1 undef
14f504e46494c45526a33566a58622d6b6d4b562d73776f64 33:0:0:3 sde 8:64 1 undef
14f504e46494c45524e77537957762d34737a312d4d716339 34:0:0:0 sdf 8:80 1 undef
14f504e46494c4552554c536b71612d474539552d4942357a 34:0:0:1 sdg 8:96 1 undef
14f504e46494c45527748533276382d707978772d686c7a43 34:0:0:2 sdh 8:112 1 undef
14f504e46494c45526a33566a58622d6b6d4b562d73776f64 34:0:0:3 sdi 8:128 1 undef
14f504e46494c45524e77537957762d34737a312d4d716339 35:0:0:0 sdj 8:144 1 undef
14f504e46494c4552554c536b71612d474539552d4942357a 35:0:0:1 sdk 8:160 1 undef
14f504e46494c45527748533276382d707978772d686c7a43 35:0:0:2 sdl 8:176 1 undef
14f504e46494c45526a33566a58622d6b6d4b562d73776f64 35:0:0:3 sdm 8:192 1 undef
14f504e46494c45524e77537957762d34737a312d4d716339 36:0:0:0 sdn 8:208 1 undef
14f504e46494c4552554c536b71612d474539552d4942357a 36:0:0:1 sdo 8:224 1 undef
14f504e46494c45527748533276382d707978772d686c7a43 36:0:0:2 sdp 8:240 1 undef
14f504e46494c45526a33566a58622d6b6d4b562d73776f64 36:0:0:3 sdq 65:0 1 undef
在此上面的查找WWID，可以识别为：
14f504e46494c45524e77537957762d34737a312d4d716339 sdb sdf sdj sdn 10.7GB
14f504e46494c4552554c536b71612d474539552d4942357a sdc sdg sdk sdo 10.7GB
14f504e46494c45527748533276382d707978772d686c7a43 sdd sdh sdl sdp 10.7GB
14f504e46494c45526a33566a58622d6b6d4b562d73776f64 sde sdi sdm sdq 21.5GB