[root@vmt ~]# cat /etc/issue

 Oracle Linux Server release 5.7

 Kernel \r on an \m  

[root@vmt ~]# uname -p

 x86_64  

[root@vmt ~]# scsi_id -g -u -s /block/sdb

SATA_VBOX_HARDDISK_VBf5fa9817-60df9544_

[root@vmt ~]# scsi_id -g -u -s /block/sdc

SATA_VBOX_HARDDISK_VB3a608c6d-857258c2_

[root@vmt ~]# scsi_id -g -u -s /block/sdd

SATA_VBOX_HARDDISK_VB3e117166-7159170a_

[root@vmt ~]# cat /etc/udev/rules.d/-oracle-asmdevices.rules

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VBf5fa9817-60df9544_", NAME="asm-diskb", OWNER="grid", GROUP="asmadmin", MODE=""

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB3a608c6d-857258c2_", NAME="asm-diskc", OWNER="grid", GROUP="asmadmin", MODE=""

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB3e117166-7159170a_", NAME="asm-diskd", OWNER="grid", GROUP="asmadmin", MODE=""

[root@vmt ~]# start_udev

Starting udev:                                             [  OK  ]

[root@vmt ~]# ls -l /dev/asm-disk*

brw-rw----  grid asmadmin ,  Dec  : /dev/asm-diskb

brw-rw----  grid asmadmin ,  Dec  : /dev/asm-diskc

brw-rw----  grid asmadmin ,  Dec  : /dev/asm-diskd 

[root@vmt ~]# fdisk /dev/sdb   

Command (m for help): n

Command action

   e   extended

   p   primary partition (-)

p

Partition number (-):

First cylinder (-, default ):

Using default value

Last cylinder or +size or +sizeM or +sizeK (-, default ): +512M  

Command (m for help): p  

Disk /dev/sdb:  MB,  bytes

 heads,  sectors/track,  cylinders

Units = cylinders of  *  =  bytes  

   Device Boot      Start         End      Blocks   Id  System

/dev/sdb1                                    Linux  

Command (m for help): n

Command action

   e   extended

   p   primary partition (-)

p

Partition number (-):

First cylinder (-, default ):

Using default value

Last cylinder or +size or +sizeM or +sizeK (-, default ):

Using default value   

Command (m for help): p  

Disk /dev/sdb:  MB,  bytes

 heads,  sectors/track,  cylinders

Units = cylinders of  *  =  bytes  

   Device Boot      Start         End      Blocks   Id  System

/dev/sdb1                                    Linux

/dev/sdb2                             +    Linux  

Command (m for help): w

The partition table has been altered!  

Calling ioctl() to re-read partition table.

Syncing disks.

[root@vmt ~]# ls -l /dev/sdb*

brw-r-----  root disk ,  Dec  : /dev/sdb

brw-r-----  root disk ,  Dec  : /dev/sdb1

brw-r-----  root disk ,  Dec  : /dev/sdb2

[root@vmt ~]# cat /etc/udev/rules.d/-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}=="", ENV{MINOR}=="", RUN+="/bin/raw /dev/raw/raw2 %M %m"

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

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=="raw*", OWNER=="oracle", GROUP=="oinstall", MODE==""

[root@vmt ~]# start_udev

Starting udev:                                             [  OK  ]

[root@vmt ~]# ls -l /dev/raw/raw*

crw-rw----  oracle oinstall ,  Dec  : /dev/raw/raw1

crw-rw----  oracle oinstall ,  Dec  : /dev/raw/raw2

[root@vmt ~]# ls -l /dev/asm-disk*

brw-rw----  grid asmadmin ,  Dec  : /dev/asm-diskc

brw-rw----  grid asmadmin ,  Dec  : /dev/asm-diskd  

[root@vmol6 ~]# cat /etc/issue

Oracle Linux Server release 6.3

Kernel \r on an \m  

[root@vmol6 ~]# uname -p

x86_64  

[root@vmol6 ~]# scsi_id -g -u -d /dev/sdb

1ATA_VBOX_HARDDISK_VB3a217fd5-b0e5b939

[root@vmol6 ~]# scsi_id -g -u -d /dev/sdc

1ATA_VBOX_HARDDISK_VBebf4c4a8-ce363f12

[root@vmol6 ~]# scsi_id -g -u -d /dev/sdd

1ATA_VBOX_HARDDISK_VB70f61801-584899be

[root@vmol6 ~]# cat /etc/udev/rules.d/-oracle-asmdevices.rules

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB3a217fd5-b0e5b939", NAME="asm-diskb", OWNER="grid", GROUP="asmadmin", MODE=""

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VBebf4c4a8-ce363f12", NAME="asm-diskc", OWNER="grid", GROUP="asmadmin", MODE=""

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB70f61801-584899be", NAME="asm-diskd", OWNER="grid", GROUP="asmadmin", MODE=""

[root@vmol6 ~]# start_udev

Starting udev:                                             [  OK  ]

[root@vmol6 ~]# ls -l /dev/asm-disk*

brw-rw----.  grid asmadmin ,  Dec  : /dev/asm-diskb

brw-rw----.  grid asmadmin ,  Dec  : /dev/asm-diskc

brw-rw----.  grid asmadmin ,  Dec  : /dev/asm-diskd