On rhel5 ,you should edit following both files:

1./etc/sysconfig/rawdevices

   
   
   
   
    
    
    
    
    
  1. # raw device bindings 
    2. 
    
    
    
    
  2. # format:  <rawdev> <major> <minor> 
    3. 
    
    
    
    
  3. #          <rawdev> <blockdev> 
    4. 
    
    
    
    
  4. # example: /dev/raw/raw1 /dev/sda1 
    5. 
    
    
    
    
  5. #          /dev/raw/raw2 8 5 
    6. 
    
    
    
    
  6. /dev/raw/raw1 /dev/mapper/datavg-vol01 
    7. 
    
    
    
    
  7. /dev/raw/raw2 /dev/mapper/datavg-vol02 
    8. 
    
    
    
    
  8. /dev/raw/raw3 /dev/mapper/datavg-vol03 
    9. 
    
    
    
    
  9. /dev/raw/raw4 /dev/mapper/datavg-vol04 
    10. 
    
    
    
    
  10. /dev/raw/raw5 /dev/mapper/datavg-vol05 
    11. 
    
    
    
    
  11. /dev/raw/raw6 /dev/mapper/datavg-vol06 
    12.

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

   
   
   
   
    
    
    
    
    
  1. ACTION=="add", KERNEL=="raw[1-6]", OWNER="sybase", GROUP="sybase", MODE="660" 
    2.

3.Restart rawdevices service

   
   
   
   
    
    
    
    
    
  1. [root@syb05 ~]# service rawdevices restart 
    2.

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

   
   
   
   
    
    
    
    
    
  1. ACTION=="add", KERNEL=="dm-1", OWNER=="sybuser", GROUP=="sybase", RUN+="/bin/raw /dev/raw/raw1 %N" 
    2. 
    
    
    
    
  2. ACTION=="add", KERNEL=="dm-2", OWNER=="sybuser", GROUP=="sybase", RUN+="/bin/raw /dev/raw/raw2 %N" 
    3. 
    
    
    
    
  3. ACTION=="add", KERNEL=="dm-3", OWNER=="sybuser", GROUP=="sybase", RUN+="/bin/raw /dev/raw/raw3 %N" 
    4. 
    
    
    
    
  4. ACTION=="add", KERNEL=="raw[1-3]", OWNER="sybuser", GROUP="sybase", MODE="660" 
    5. 
   
   
   
   
   
   
   
   
    
    
    
    
    
  1. [root@syb06 ~]# start_udev 
    2.