Dell PowerEdge Web Server Installation Guide download pdf (Page 30)

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All of the changes in /etc/sysctl.conf will automatically become effective at the next boot.

To make the changes effective immediately, simply issue the command:

# sysctl -p

Configuring the Dell Hardware

Following OS configuration, there are several steps that need to be performed to

configure the Dell hardware. These include installing and configuring Dell

PowerConnect™ network switches, configuring networking on the servers, and

configuring external storage. Installing Dell network switches is among the easiest tasks.

If you use default settings, a Dell PowerConnect switch can be up and running almost as

soon as you power it up. However, if you wish to configure advanced options such as

Virtual LANs, you must perform some switch configuration steps. In addition, the more

advanced PowerConnect switches are “Managed” switches that offer a management

interface for ongoing management via the network. To configure switches, Dell offers a

web interface and command line options, which can be implemented via a serial cable or

a network interface. Configuring switch options is beyond the scope of this whitepaper,

but more information and manuals can be found at

http://support.dell.com .

External storage is not required for OracleAS, but it is not uncommon to store the

Metadata Repository on external storage. In fact, if the Metadata Repository has been

installed into an existing Real Application Cluster database, external storage will be used.

This is because RAC requires shared external storage. Dell has partnered with EMC to

offer the Clariion Fibre Channel Storage Array series for external storage. An outline of

the steps to set up a Storage Area Network (SAN) is detailed below.

Configuring Basic Networking

Once you have installed Dell PowerConnect switches and have connected network cables

between the switch (or switches) to the server NICs, it is time to configure basic

networking on each server. The following steps describe how to configure basic

networking within Red Hat Linux:

1. Log in as root.

2. Edit the network device file /etc/sysconfig/network-scripts/ifcfg-eth#, where # is

the number of the network device, and configure the file as follows:

DEVICE=eth0

ONBOOT=yes

IPADDR=<Public IP Address>

NETMASK=<Subnet mask>

GATEWAY=<Gateway address>

BOOTPROTO=static

HWADDR=<MAC Address>

SLAVE=no

3. Edit the /etc/sysconfig/network file, and, if necessary, replace

localhost.localdomain with the fully qualified public node name For example, the

line for node 1 would be as follows:

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Dell PowerEdge Web Server Installation Guide Page 30

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