redhat 5.4 下 Oracle RAC 报 raw 设备大小 错误

在Redhat 5.4上安装oracle 10g的RAC。在安装Clusterware的时候，出现错误：

Raw设备的大小肯定是没有问题，因为我分配的raw是200M一个，但是它只识别了16M。配置文件就那么几步，看了几遍都没有发现问题。google百度也没有什么有价值的信息。

磁盘分区大小：

[root@rac1 raw]# fdisk -l

Disk /dev/sdb: 419 MB, 419430400 bytes

64 heads, 32 sectors/track, 400 cylinders

Units = cylinders of 2048 * 512 = 1048576 bytes

Device BootStartEndBlocksIdSystem

/dev/sdb1119920376083Linux

/dev/sdb220040020582483Linux

Disk /dev/sdc: 629 MB, 629145600 bytes

64 heads, 32 sectors/track, 600 cylinders

Units = cylinders of 2048 * 512 = 1048576 bytes

Device BootStartEndBlocksIdSystem

/dev/sdc1120120580883Linux

/dev/sdc220240220582483Linux

/dev/sdc340360020275283Linux

裸设备信息：

[root@rac1 raw]# ls -lrt /dev/raw/raw*

crw-rw---- 1 oracle oinstall 162, 3 Sep8 05:14 /dev/raw/raw3

crw-rw---- 1 oracle oinstall 162, 2 Sep8 05:14 /dev/raw/raw2

crw-rw---- 1 oracle oinstall 162, 5 Sep8 05:14 /dev/raw/raw5

crw-rw---- 1 oracle oinstall 162, 4 Sep8 05:14 /dev/raw/raw4

crw-rw---- 1 oracle oinstall 162, 1 Sep8 05:14 /dev/raw/raw1

报这种错，肯定出在raw的配置上，后来在看/etc/udev/rules.d/60-raw.rules配置的时候发现和提示中的有点出入，尝试的修改了一下成如下格式：

[root@rac2 /]# more /etc/udev/rules.d/60-raw.rules

# Enter raw device bindings here.

#

# An example would be:

#ACTION=="add", KERNEL=="sda", RUN+="/bin/raw /dev/raw/raw1 %N"

# to bind /dev/raw/raw1 to /dev/sda,or

#ACTION=="add", ENV{MAJOR}=="8", ENV{MINOR}=="1", RUN+="/bin/raw /dev/raw/raw2 %M %m"

# to bind /dev/raw/raw2 to the device with major 8, minor 1.

ACTION=="add",KERNEL=="sdb1",RUN+="/bin/raw /dev/raw/raw1 %N"

ACTION=="add", KERNEL=="sdb2",RUN+="/bin/raw /dev/raw/raw2 %N"

ACTION=="add", KERNEL=="sdc1",RUN+="/bin/raw /dev/raw/raw3 %N"

ACTION=="add", KERNEL=="sdc2",RUN+="/bin/raw /dev/raw/raw4 %N"

ACTION=="add", KERNEL=="sdc3",RUN+="/bin/raw /dev/raw/raw5 %N"

ACTION=="add", KERNEL=="raw[1-5]", OWNER="oracle", GROUP="oinstall", MODE="660"

再次尝试安装clusterware，居然没有报错了，悲壮啊。

在这贴一下原来的信息（这种配置是错误的）：

ACTION=="add",KERNEL=="/dev/sdb1",RUN+="/bin/raw /dev/raw/raw1 %N"

ACTION=="add", KERNEL=="/dev/sdb2",RUN+="/bin/raw /dev/raw/raw2 %N"

ACTION=="add", KERNEL=="/dev/sdc1",RUN+="/bin/raw /dev/raw/raw3 %N"

ACTION=="add", KERNEL=="/dev/sdc2",RUN+="/bin/raw /dev/raw/raw4 %N"

ACTION=="add", KERNEL=="/dev/sdc3",RUN+="/bin/raw /dev/raw/raw5 %N"

ACTION=="add", KERNEL=="raw[1-5]", OWNER="oracle", GROUP="oinstall", MODE="660"

这两段的不同在于KERNEL参数上，之前我写成/dev/sdb1这种格式，这种会报开始时的错误，正确的写法是直接写sdb1就可以了。这个东西搞了半天的时间，太杯具了。不过问题解决了，也吸取教训了。

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