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parameter to define the IP address of the TFTP server and the filename parameter to define the

bootstrap loader program to download.

group {

next-server 172.16.1.10;

filename "/pxelinux.0";

# Hosts allowed to network boot into DX Storage

host clusternode1 { hardware ethernet 00:90:cb:bf:45:26; }

host clusternode2 { hardware ethernet 00:90:b2:92:09:e4; }

host clusternode3 { hardware ethernet 00:90:0d:46:7a:b4; }

}

In the preceding DHCP configuration file example, the DX Storage nodes are explicitly defined by

MAC address to prevent the unintended booting of DX Storage by other servers or workstations.

2.4.2. Configuring the TFTP Server

In addition to the DHCP, you must configure a TFTP server from which to load the DX Storage

software. The following steps are necessary to setup a TFTP boot server.

Install and configure TFTP server software on the boot

Create the /tftpboot directory

Copy the kernel and fsimage files to the /tftpboot/profiles/castor

You should also review the information discussed in

Redundancy".

2.4.2.1. Installing and Configuring TFTP

There are many free and commercially available packages that provide a TFTP server and UNIX

distributions commonly include this in their standard setup. For example, the tftp-hpa package for

UNIX is known to work with DX Storage.You can get source code from

software/network/tftp/

2.4.2.2. Creating the tftpboot Directory Hierarchy

After installing the TFTP server, you must configure it to serve the directory where the network boot

files are located. This directory is typically /tftpboot because TFTP is almost exclusively used for

booting network devices. A sample template of this directory is included in the DX Storage software

distribution in the samples/Network-Boot directory.

2.4.2.3. Copying kernel and fsimage

The DX Storage software distribution media contains files named kernel and fsimage that you

must copy to the tftpboot/profiles/castor directory on the TFTP server. These files contain

the DX Storage embedded operating system and will be loaded at boot time by every DX Storage

storage node.

After copying the directory template and the DX Storage software files, the tftpboot directory on

the TFTP server should contain the following files.

File name

tftpboot/pxelinux.0

hierarchy.

and it is also available as a binary package in many Linux distributions.

server.

Section 2.4.2.4, "DHCP and Boot Server

http://www.kernel.org/pub/

Description

Boot loader program

directory.

Version 5.0

December 2010