一、多路径+UDEV

1、使用多路径multipath挂载需要挂载的盘：mpath*格式。

cat <<EOF >/etc/multipath.conf
defaults {
    user_friendly_names yes
}
 
blacklist {
  devnode "^sda"
}
EOF
multipath -F
multipath -v2

2、将多路径盘的UUID输出到udev_info文件中

cd /dev/mapper
for i in `ls mpath*`;
do
printf "%s %s\n" "$i" "$(udevadm info --query=all --name=/dev/mapper/$i |grep -i dm_uuid)">>udev_info;
done

3、写入到UDEV rule文件中

cat /dev/mapper/udev_info |while read line 
do
dm_uuid=`echo $line |awk -F'=' '{print $2}'`;
disk_name=`echo $line|awk '{print $1}'`;
echo "KERNEL==\"dm-*\",ENV{DM_UUID}==\"${dm_uuid}\",SYMLINK+=\"asmdisks/${disk_name}\",OWNER=\"grid\",GROUP=\"asmadmin\",MODE=\"0660\"">>/etc/udev/rules.d/99-oracle-asmdevices.rules
done

二、asmlib

#!/bin/bash
PATH=/bin:/sbin:/usr/bin:/usr/sbin
export PATH
i=1
while [ $i -lt 13 ]                  #硬盘数量,除系统盘之外是12块
do
j=`echo $i|awk '{printf "%c",97+$i}'` #系统盘是sda,如果是其它的需要修改脚本
fdisk /dev/sd$j <<FORMAT
n
p
1
1
63
wq
FORMAT
mkfs.ext4 -T largefile  /dev/sd${j}1    #格式化磁盘
sleep 5
oracleasm createdisk asmdisk${i} /dev/sd${j}1
i=$(($i+1))
done