[root@node01 ~]# lsb_release -a LSB Version: :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch Distributor ID: RedHatEnterpriseServer Description: Red Hat Enterprise Linux Server release 6.4 (Santiago) Release: 6.4 Codename: Santiago
1、安装Multipath
[root@node01 ~]# yum install device-mapper-multipath*
2、初始化配置
[root@node01 ~]# cp /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf /etc/multipath.conf [root@node01 multipath]# service multipathd status multipathd (pid 1035) is running... [root@node01 multipath]# service multipathd restart ok Stopping multipathd daemon: [ OK ] Starting multipathd daemon: [ OK ]
3、初始化默认磁盘配置
[root@node01 multipath]# multipath -ll mpathe (14f504e46494c455273434a5465302d754d374f2d67673139) dm-5 OPNFILER,VIRTUAL-DISK size=1.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:3 sde 8:64 active ready running mpathq (14f504e46494c455230484c58456c2d3245364a2d374e7974) dm-17 OPNFILER,VIRTUAL-DISK size=4.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:14 sdp 8:240 active ready running mpathd (14f504e46494c455262594b796d6f2d7a5a5a522d52735630) dm-4 OPNFILER,VIRTUAL-DISK size=1.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:2 sdd 8:48 active ready running mpathp (14f504e46494c455246774e5a44422d336338732d34756b6c) dm-16 OPNFILER,VIRTUAL-DISK size=4.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:15 sdq 65:0 active ready running mpathc (14f504e46494c45526467507876672d4b3054732d49633937) dm-3 OPNFILER,VIRTUAL-DISK size=1.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:1 sdc 8:32 active ready running mpatho (14f504e46494c45526c68627036542d356e4b4a2d47787653) dm-15 OPNFILER,VIRTUAL-DISK size=4.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:13 sdo 8:224 active ready running mpathb (14f504e46494c4552354b7456426d2d4465564d2d624f4958) dm-2 OPNFILER,VIRTUAL-DISK size=1.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:0 sdb 8:16 active ready running mpathn (14f504e46494c455249316b6856642d6e5a74362d3265454a) dm-14 OPNFILER,VIRTUAL-DISK size=4.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:12 sdn 8:208 active ready running mpathm (14f504e46494c4552576a427a41782d63686b392d32733233) dm-13 OPNFILER,VIRTUAL-DISK size=4.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:11 sdm 8:192 active ready running mpathl (14f504e46494c4552725332354f412d646f30572d66646864) dm-12 OPNFILER,VIRTUAL-DISK size=4.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:10 sdl 8:176 active ready running mpathk (14f504e46494c45526177716e586f2d426d57442d31776f48) dm-11 OPNFILER,VIRTUAL-DISK size=4.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:9 sdk 8:160 active ready running mpathj (14f504e46494c45523442545747392d436e656e2d53523049) dm-10 OPNFILER,VIRTUAL-DISK size=1.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:8 sdj 8:144 active ready running mpathi (14f504e46494c4552504e55376c792d554271462d72496f4b) dm-9 OPNFILER,VIRTUAL-DISK size=1.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:7 sdi 8:128 active ready running mpathh (14f504e46494c45524270706d6a4d2d31786b6c2d78576348) dm-8 OPNFILER,VIRTUAL-DISK size=1.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:5 sdg 8:96 active ready running mpathg (14f504e46494c455234795462646c2d684d64502d566d3244) dm-7 OPNFILER,VIRTUAL-DISK size=1.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:6 sdh 8:112 active ready running mpathf (14f504e46494c45524f38497847642d7761714e2d38703763) dm-6 OPNFILER,VIRTUAL-DISK size=1.0G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active `- 3:0:0:4 sdf 8:80 active ready running
4、多节点统一配置
多节点共享存储环境下，可以下面的文件统一磁盘路径，确保每一个节点的磁盘对应统一。
具体就是在/etc/multipath/bindings文件中指定磁盘和wwid的对应关系，免除多节点下的磁盘映射混乱。
需要重新刷新multipath。
[root@node01 ~]# more /etc/multipath/bindings # Multipath bindings, Version : 1.0 # NOTE: this file is automatically maintained by the multipath program. # You should not need to edit this file in normal circumstances. # # Format: # alias wwid # mpatha 1ATA VBOX HARDDISK VB92c04338-06c91aad mpathb 14f504e46494c4552354b7456426d2d4465564d2d624f4958 mpathc 14f504e46494c45526467507876672d4b3054732d49633937 mpathd 14f504e46494c455262594b796d6f2d7a5a5a522d52735630 mpathe 14f504e46494c455273434a5465302d754d374f2d67673139 mpathf 14f504e46494c45524f38497847642d7761714e2d38703763 mpathg 14f504e46494c455234795462646c2d684d64502d566d3244 mpathh 14f504e46494c45524270706d6a4d2d31786b6c2d78576348 mpathi 14f504e46494c4552504e55376c792d554271462d72496f4b mpathj 14f504e46494c45523442545747392d436e656e2d53523049 mpathk 14f504e46494c45526177716e586f2d426d57442d31776f48 mpathl 14f504e46494c4552725332354f412d646f30572d66646864 mpathm 14f504e46494c4552576a427a41782d63686b392d32733233 mpathn 14f504e46494c455249316b6856642d6e5a74362d3265454a mpatho 14f504e46494c45526c68627036542d356e4b4a2d47787653 mpathp 14f504e46494c455246774e5a44422d336338732d34756b6c mpathq 14f504e46494c455230484c58456c2d3245364a2d374e7974