rhel5安装RAC时 OCR和VOTE磁盘RAW设备绑定及权限
rhel5安装RAC时 OCR和VOTE磁盘RAW设备绑定及权限
优点：
避免使用/etc/rc.local文件在系统启动时才执行，可随时发现设备变化。
环境说明：
-
操作系统：rhel5.11
多路径版本：device-mapper-multipath-0.4.7-63.el5
要求：
-
/dev/raw/raw1需绑定到 /dev/mapper/ocr01
/dev/raw/raw2需绑定到 /dev/mapper/ocr02
均用于ocr设备。
同时需要设置/dev/raw/raw*的权限
下面是udev的规则文件：
[root@db01 ~]# cat /etc/udev/rules.d/40-multipath.rules
# multipath wants the devmaps presented as meaninglful device names
# so name them after their devmap name
SUBSYSTEM!="block", GOTO="end_mpath"
KERNEL!="dm-[0-9]*", GOTO="end_mpath"
PROGRAM!="/sbin/mpath_wait %M %m", GOTO="end_mpath"
PROGRAM!="/sbin/dmsetup info -c --noheadings -j %M -m %m", GOTO="end_mpath"
RESULT!="*:*:*:*:*:*:*:mpath-*", GOTO="kpartx_check"
PROGRAM!="/sbin/dmsetup info -c --noheadings -o name -j %M -m %m", GOTO="end_mpath"
RESULT!="?*", GOTO="end_mpath"
NAME="%k", SYMLINK="mpath/%c"
ACTION!="change", GOTO="skip_kpartx"
RUN+="/bin/bash -c '/sbin/mpath_wait /dev/mapper/%c; /sbin/kpartx -a -p p /dev/mapper/%c'"
#################add by Harry####################
KERNEL!="dm-[0-9]*", GOTO="skip_dm"
ACTION!="change", GOTO="skip_dm"
PROGRAM!="/sbin/dmsetup ls --exec /bin/basename -j %M -m %m", GOTO="skip_dm"
RESULT=="mpath1", RUN+="/bin/raw /dev/raw/raw1 /dev/mapper/mpath1p1"
LABEL="skip_dm"
KERNEL=="raw1", ACTION=="add", OWNER="root", GROUP="oinstall", MODE="0660"
OPTIONS="last_rule"
#################################################
LABEL="skip_kpartx"
OPTIONS="last_rule"
LABEL="kpartx_check"
RESULT!="*:*:*:*:*:*:*:part*-mpath-*", GOTO="end_mpath"
PROGRAM=="/sbin/dmsetup info -c --noheadings -o name -j %M -m %m", RESULT=="?*", NAME="%k", SYMLINK="mpath/%c"
OPTIONS="last_rule"
LABEL="end_mpath"
[root@db01 ~]# cat /etc/udev/rules.d/99-oracle_raw.rules
KERNEL=="raw[1-2]*", OWNER="root", GROUP="oinstall", MODE="640"
KERNEL=="raw[3-5]*", OWNER="oracle", GROUP="oinstall", MODE="660"
下面是测试结果：
[root@db01 ~]# dmsetup ls cell01_disk01p1 (253, 5) mpath1 (253, 3) cell01_disk01 (253, 2) VolGroup00-LogVol01 (253, 1) VolGroup00-LogVol00 (253, 0) mpath1p1 (253, 4) [root@db01 ~]# [root@db01 ~]# multipath -F [root@db01 ~]# multipath -r create: cell01_disk01 (36000c292118095b2be6b990e6fa298dd) VMware,,VMware Virtual [size=10G][features=0][hwhandler=0][n/a] \_ round-robin 0 [prio=1][undef] \_ 0:0:1:0 sdb 8:16 [undef][ready] create: mpath1 (14f504e46494c4552584a536330632d727238742d68674655) OPNFILER,VIRTUAL-DISK [size=4.0G][features=0][hwhandler=0][n/a] \_ round-robin 0 [prio=1][undef] \_ 31:0:0:0 sdc 8:32 [undef][ready] \_ round-robin 0 [prio=1][undef] \_ 32:0:0:0 sdd 8:48 [undef][ready] [root@db01 ~]# raw -qa /dev/raw/raw1: bound to major 253, minor 4 [root@db01 ~]# ls -l /dev/raw/ total 0 crw-r----- 1 root oinstall 162, 1 Nov 17 04:59 raw1