Owner's Manual
42 Deployment Guide
Configuring the Shared Storage on the New Node
To extend an existing RAC database to your new nodes, configure storage for the new nodes so that the
storage is the same as on the existing nodes. This section provides the appropriate procedures for ASM.
Configuring Shared Storage Using ASM
If you are using ASM, ensure that the new nodes can access the ASM disks with the same permissions as
the existing nodes.
To configure the ASM disks:
1
Log in as
root
.
2
At the command prompt, type:
setenforce 0
To permanently disable SELinux:
1
Open your
grub.conf
file.
2
Locate the kernel command line and append the following option:
selinux=0
For example:
kernel /vmlinuz-2.6.9-34.ELlargesmp ro root=LABEL=/ apic rhgb quiet
selinux=0
3
Reboot your system.
4
Open a terminal window and log in as
root
.
5
Copy the
/etc/sysconfig/rawdevices
file from one of the existing nodes to the same location on the
new node.
6
If you are using the RAW device interface for ASM, type
service rawdevices restart
to
restart the RAW Devices Service.
7
Open a terminal window and perform the following steps on the new node:
a
Ty p e
service oracleasm configure
b
Type the following inputs for all the nodes:
Default user to own the driver interface [ ]:
oracle
Default group to own the driver interface [ ]:
dba
Start Oracle ASM library driver on boot (y/n) [n]:
y
Fix permissions of Oracle ASM disks on boot (y/n) [y]:
y