RHEL 5中如何使用multipath配置ASMdisk

启动multipath

[root@db11g ~]# modprobe dm-multipath

[root@db11g ~]# modprobe dm-round-robin

[root@db11g ~]# chkconfig multipathd start

[root@db11g ~]# chkconfig multipathd on

[root@db11g ~]# /etc/init.d/multipathd start

Starting multipathd daemon: [  OK  ]

[root@db11g ~]# ps -ef|grep multipathd

root      3084     1  0 13:16 ?        00:00:00 /sbin/multipathd

root      3186  2877  0 13:16 pts/0    00:00:00 grep multipathd

[root@db11g ~]# multipath -F

[root@db11g ~]# multipath -v2

Jan 15 13:17:40 | SATA_VBOX_HARDDISK_VBa64c2685-cc2f3dd0_: ignoring map

create: datadisk (SATA_VBOX_HARDDISK_VB3c0bb909-10aab3a0_) undef ATA,VBOX HARDDISK

size=16G features='0' hwhandler='0' wp=undef

`-+- policy='round-robin 0' prio=1 status=undef

- 1:0:0:0 sdb 8:16 undef ready running

create: fradisk (SATA_VBOX_HARDDISK_VB3edd7dc1-fd831bf4_) undef ATA,VBOX HARDDISK

size=10G features='0' hwhandler='0' wp=undef

`-+- policy='round-robin 0' prio=1 status=undef

- 2:0:0:0 sdc 8:32 undef ready running

[root@db11g ~]#

[root@db11g ~]# multipath -ll

fradisk (SATA_VBOX_HARDDISK_VB3edd7dc1-fd831bf4_) dm-3 ATA,VBOX HARDDISK

size=10G features='0' hwhandler='0' wp=rw

`-+- policy='round-robin 0' prio=1 status=active

- 2:0:0:0 sdc 8:32 active ready running

datadisk (SATA_VBOX_HARDDISK_VB3c0bb909-10aab3a0_) dm-2 ATA,VBOX HARDDISK

size=16G features='0' hwhandler='0' wp=rw

`-+- policy='round-robin 0' prio=1 status=active

- 1:0:0:0 sdb 8:16 active ready running

[root@db11g ~]# ll /dev/mapper/*disk

brw-rw---- 1 grid asmadmin 252, 2 Jan 15 13:17 /dev/mapper/datadisk

brw-rw---- 1 grid asmadmin 252, 3 Jan 15 13:17 /dev/mapper/fradisk

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