Binding bare devices on Linux:

Binding bare devices on Linux:

Bind with RAWMethod 1 raw configuration (1)

[Root @ qs-dmm-rh2 mapper] # cat/etc/rc. local

#! /Bin/sh

#

# This script will be executed * after * all theother init scripts.

# You can put your own initialization stuff inhere if you don't

# Want to do the full Sys V style init stuff.

Touch/var/lock/subsys/local

#####

# Oracle Cluster Voting disks

#####

Chown oracle: oinstall/dev/mapper/voting *

Chmod 660/dev/mapper/voting *

Raw/dev/raw/raw5/dev/mapper/votingdiskp1

Raw/dev/raw/raw6/dev/mapper/votingdiskp2

Raw/dev/raw/raw7/dev/mapper/votingdiskp3

Raw/dev/raw/raw8/dev/mapper/votingdiskp4

# Sleep 2

Chown oracle: oinstall/dev/raw/raw5

Chown oracle: oinstall/dev/raw/raw6

Chown oracle: oinstall/dev/raw/raw7

Chown oracle: oinstall/dev/raw/raw8

Chmod 660/dev/raw/raw5

Chmod 660/dev/raw/raw6

Chmod 660/dev/raw/raw7

Chmod 660/dev/raw/raw8

Method 1 (2)

[Root @ felix2 raw] # vi/etc/rc. local

#! /Bin/sh

#

# This script will be executed * after * all theother init scripts.

# You can put your own initialization stuff inhere if you don't

# Want to do the full Sys V style init stuff.

Touch/var/lock/subsys/local

Chown-R oracle: oinstall/dev/raw *

Chmod-R 660/dev/raw *

~

(1) edit the configuration file of rawdevices:

[Root @ felix2 sysconfig] # pwd

/Etc/sysconfig

[Root @ felix2 sysconfig] # vi rawdevices

# Rw device bindings

# Format: <rawdev> <major> <minor>

# <Rawdev> <blockdev>

# Example:/dev/raw/raw1/dev/sda1

#/Dev/raw/raw2 8 5

# -- Add binding entries for bare devices and Block devices:

/Dev/raw/raw1/dev/sdb1

/Dev/raw/raw2/dev/sdc1

/Dev/raw/raw3/dev/sdd1

/Dev/raw/raw4/dev/sde1

(2) Start the rawdevices service:

Service rawdevices start

(3) automatically start rawdevices when the system is started:

Chkconfig rawdevices on

(4) Confirm that the rawdevices service is successfully started and the bare device is created correctly. First, check the rawdevices service status:

Service rawdevicesstatus

[Root @ felix2 sysconfig] # service rawdevices status

/Dev/raw/raw1: bound to major 8, minor 17

/Dev/raw/raw2: bound to major 8, minor 33

/Dev/raw/raw3: bound to major 8, minor 49

/Dev/raw/raw4: bound to major 8, minor 65

Check the bare device again:

[Root @ felix2 sysconfig] # cd/dev/raw

[Root @ felix2 raw] # ll

Total 0

Crw-rw ---- 1 oracle oinstall 162, 1 May 21 15: 03raw1

Crw-rw ---- 1 oracle oinstall 162, 2 May 21 15: 35raw2

Crw-rw ---- 1 oracle oinstall 162, 3 May 21 15: 35raw3

Crw-rw ---- 1 oracle oinstall 162, 4 May 21 15: 35raw4

[Root @ felix2 raw] #

(5) ASM runs as an Oracle user. To enable ASM to discover these devices, you must change the owner of these devices ):

[Root @ felix2 raw] # chown oracle: oinstall/dev/raw *

[Root @ felix2 raw] # ll

Total 0

Crw-rw ---- 1 oracle oinstall 162, 1 May 21 15: 03raw1

Crw-rw ---- 1 oracle oinstall 162, 2 May 21 15: 37raw2

Crw-rw ---- 1 oracle oinstall 162, 3 May 21 15: 37raw3

Crw-rw ---- 1 oracle oinstall 162, 4 May 21 15: 37raw4

Method 2 Bind a device with UDEV:

Modify the/etc/udev/rules. d/60-raw.rules File

# Now we know/dev/sdb1 to raw1, And we can add the following content to the/etc/udev/rules. d/60-raw.rules file:

[Root @ centos ~] # Vi/etc/udev/rules. d/60-raw.rules

Cat>/etc/udev/rules. d/60-raw.rules <EOF

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

ACTION = "add", KERNEL = "sdc1", RUN + = "/bin/raw/dev/raw/raw2% N"

ACTION = "add", KERNEL = "sdd1", RUN + = "/bin/raw/dev/raw/raw3% N"

ACTION = "add", KERNEL = "sde1", RUN + = "/bin/raw/dev/raw/raw4% N"

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

EOF

Restart UDEV:

[Root @ rac1 ~] # Start_udev

[Root @ zrac1 asmfileapp-linux5.4] # ls-lat/dev/raw *

Crw-rw ---- 1 oracle oinstall 162, 4 Apr 10/dev/raw/raw4

Crw-rw ---- 1 oracle oinstall 162, 3 Apr 10/dev/raw/raw3

Crw-rw ---- 1 oracle oinstall 162, 2 Apr 10/dev/raw/raw2

Crw-rw ---- 1 oracle oinstall 162, 1 Apr 10/dev/raw/raw1