Creating RAW devices on linux

On rhel5 ,you should edit following both files:

1./etc/sysconfig/rawdevices

# raw device bindings
# format:  <rawdev> <major> <minor>
#          <rawdev> <blockdev>
# example: /dev/raw/raw1 /dev/sda1
#          /dev/raw/raw2 8 5
/dev/raw/raw1 /dev/mapper/datavg-vol01
/dev/raw/raw2 /dev/mapper/datavg-vol02
/dev/raw/raw3 /dev/mapper/datavg-vol03
/dev/raw/raw4 /dev/mapper/datavg-vol04
/dev/raw/raw5 /dev/mapper/datavg-vol05
/dev/raw/raw6 /dev/mapper/datavg-vol06

2./etc/udev/rules.d/60-raw.rules

ACTION=="add", KERNEL=="raw[1-6]", OWNER="sybase", GROUP="sybase", MODE="660"

3.Restart rawdevices service

[root@syb05 ~]# service rawdevices restart

On rhel6,you just edit /etc/udev/rules.d/60-raw.rules file

ACTION=="add", KERNEL=="dm-1", OWNER=="sybuser", GROUP=="sybase", RUN+="/bin/raw /dev/raw/raw1 %N"
ACTION=="add", KERNEL=="dm-2", OWNER=="sybuser", GROUP=="sybase", RUN+="/bin/raw /dev/raw/raw2 %N"
ACTION=="add", KERNEL=="dm-3", OWNER=="sybuser", GROUP=="sybase", RUN+="/bin/raw /dev/raw/raw3 %N"
ACTION=="add", KERNEL=="raw[1-3]", OWNER="sybuser", GROUP="sybase", MODE="660"

[root@syb06 ~]# start_udev

本文出自 “candon123” 博客，谢绝转载！