rhel5安装RAC时 OCR和VOTE磁盘RAW设备绑定及权限

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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：
    [iyunv@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"
    [iyunv@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：

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[iyunv@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) [iyunv@db01 ~]# [iyunv@db01 ~]# multipath -F [iyunv@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] [iyunv@db01 ~]# raw -qa /dev/raw/raw1:    bound to major 253, minor 4 [iyunv@db01 ~]# ls -l /dev/raw/ total   0 crw-r----- 1 root oinstall 162, 1 Nov 17 04:59  raw1