Owner's Manual

Deployment Guide 17
b Ty p e udevstart to create the raw devices.
c Ty p e service rawdevices restart to restart the Raw Devices Service.
Configuring Shared Storage for the Database Using ASM
This section provides procedures for configuring the shared storage using Automatic Storage Management
(ASM).
NOTE: Before you configure the ASM Library Driver, disable SELinux.
To temporarily disable SELinux, perform the following steps:
1 Log in as user root .
2 At the command prompt, type:
setenforce 0
To permanently disable SELinux, perform the following steps:
1 Open your grub.conf file.
2 Locate the kernel command line and add the following option:
selinux=0
For example:
kernel /vmlinuz-2.6.9-22.0.1ELsmp ro root=LABEL=/ apic rhgb quiet
selinux=0
3 Reboot your system.
To configure your cluster using ASM, perform the following steps on
all nodes :
1 Log in as root .
2 On the first Fibre Channel cluster node, create one partition on each of the other two external storage
devices with
fdisk :
a Ty p e fdisk /dev/emcpowerx and create a primary partition for the entire device.
Ty p e
h for help within the fdisk utility.
b Ty p e cat /proc/partitions to verify that the new partition exists.
If you do not observe the new partition, type:
sfdisk -R /dev/<device name>
Configuring the Storage Using the RAW Device Interface
1 Edit the /etc/sysconfig/rawdevices file and add the following lines for a Fibre Channel cluster:
/dev/raw/ASM1 /dev/emcpowerb1
/dev/raw/ASM2 /dev/emcpowerc1