使用UDEV绑定ASM多路径磁盘

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OS版本：RHEL6.4 1) 找出目标磁盘的分区别名 # dmsetup ls |grep data data01  (253:9) data04  (253:4) data03  (253:3) data02  (253:2) # dmsetup ls |grep crs crs03   (253:8) crs02   (253:7) crs01   (253:5)   2) 编写/etc/udev/rules.d/12-dm-permissions.rules规则文件 ENV{DM_NAME}=="data01", OWNER:="oragrid", GROUP:="asmadmin", MODE:="660", SYMLINK+="iscsi/asm-$env{DM_NAME}" ENV{DM_NAME}=="data02", OWNER:="oragrid", GROUP:="asmadmin", MODE:="660", SYMLINK+="iscsi/asm-$env{DM_NAME}" ENV{DM_NAME}=="data03", OWNER:="oragrid", GROUP:="asmadmin", MODE:="660", SYMLINK+="iscsi/asm-$env{DM_NAME}" ENV{DM_NAME}=="data04", OWNER:="oragrid", GROUP:="asmadmin", MODE:="660", SYMLINK+="iscsi/asm-$env{DM_NAME}" ENV{DM_NAME}=="crs01", OWNER:="oragrid", GROUP:="asmadmin", MODE:="660", SYMLINK+="iscsi/asm-$env{DM_NAME}" ENV{DM_NAME}=="crs02", OWNER:="oragrid", GROUP:="asmadmin", MODE:="660", SYMLINK+="iscsi/asm-$env{DM_NAME}" ENV{DM_NAME}=="crs03", OWNER:="oragrid", GROUP:="asmadmin", MODE:="660", SYMLINK+="iscsi/asm-$env{DM_NAME}"   3) 重启多路径服务 # service multipathd restart    4) 检查权限是否设置正确 # ls -l /dev/dm* brw-rw---- 1 root    disk     253,  0 Dec 15 14:18 /dev/dm-0 brw-rw---- 1 root    disk     253,  1 Dec 15 14:18 /dev/dm-1 brw-rw---- 1 root    disk     253, 10 Dec 15 14:18 /dev/dm-10 brw-rw---- 1 oragrid asmadmin 253,  2 Dec 15 14:18 /dev/dm-2 brw-rw---- 1 oragrid asmadmin 253,  3 Dec 15 14:18 /dev/dm-3 brw-rw---- 1 oragrid asmadmin 253,  4 Dec 15 14:18 /dev/dm-4 brw-rw---- 1 oragrid asmadmin 253,  5 Dec 15 14:18 /dev/dm-5 brw-rw---- 1 oragrid asmadmin 253,  7 Dec 15 14:18 /dev/dm-7 brw-rw---- 1 oragrid asmadmin 253,  8 Dec 15 14:18 /dev/dm-8 brw-rw---- 1 oragrid asmadmin 253,  9 Dec 15 14:18 /dev/dm-9      5) 确保多路径设备的ASM符号链接已经存在# ls -l /dev/iscsi/* [root@ysdb1 ~]#  ls -l /dev/iscsi/* lrwxrwxrwx 1 root root 7 Dec 15 14:18 /dev/asm/asm-crs01 -> ../dm-5 lrwxrwxrwx 1 root root 7 Dec 15 14:18 /dev/asm/asm-crs02 -> ../dm-7 lrwxrwxrwx 1 root root 7 Dec 15 14:18 /dev/asm/asm-crs03 -> ../dm-8 lrwxrwxrwx 1 root root 7 Dec 15 14:18 /dev/asm/asm-data01 -> ../dm-9 lrwxrwxrwx 1 root root 7 Dec 15 14:18 /dev/asm/asm-data02 -> ../dm-2 lrwxrwxrwx 1 root root 7 Dec 15 14:18 /dev/asm/asm-data03 -> ../dm-3 lrwxrwxrwx 1 root root 7 Dec 15 14:18 /dev/asm/asm-data04 -> ../dm-4