Dell DX6000 DX Object Storage Getting Started Guide - Page 14

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11

Version 5.0

December 2010

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.

1.

Install and configure TFTP server software on the boot server

.

2.

Create the

/tftpboot

directory hierarchy

.

3.

Copy the

kernel

and

fsimage

files to the

/tftpboot/profiles/castor

directory

.

You should also review the information discussed in

Section 2.4.2.4, “DHCP and Boot Server

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

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

software/network/tftp/

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

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

Description

tftpboot/pxelinux.0

Boot loader program

Section	Page
DX Object Storage Getting Started Guide	1
Table of Contents	3
Chapter 1. Welcome to DX Storage	4
1.1. Components	4
1.2. About this Document	4
1.2.1. Audience	4
1.2.2. Scope	4
Chapter 2. Network Infrastructure and Recommendations	5
2.1. About DX Storage in the Network	5
2.1.1. Sample Networks	5
2.1.2. Layer 3 Switching and Routing	7
2.1.3. Switching Hardware	7
2.1.4. Internet Deployments	9
2.2. Setting Up the Network for DX Storage	9
2.2.1. Network Summary	10
2.2.2. Recommended Infrastructure	10
2.3. Setting Up Network Services	10
2.3.1. Setting Up NTP for Time Synchronization	11
2.3.2. Setting Up DNS for Name Resolution	11
2.3.3. Preparing for Named Objects	12
2.3.4. Setting Up SNMP for Monitoring	12
2.3.5. Setting Up Network Load Balancing	13
2.4. Setting Up PXE Booting	13
2.4.1. Setting Up the DHCP Server for PXE Booting	13
2.4.2. Configuring the TFTP Server	14
2.4.2.1. Installing and Configuring TFTP	14
2.4.2.2. Creating the tftpboot Directory Hierarchy	14
2.4.2.3. Copying kernel and fsimage	14
2.4.2.4. DHCP and Boot Server Redundancy	15
2.5. Setting Up a Configuration File Server	15
2.6. Network Devices and Priority	16
2.7. Proxying the Admin Console	17
2.8. IGMP Snooping Support	17
Chapter 3. Hardware Considerations	18
3.1. Hardware Requirements and Recommendations	18
3.2. Hardware Setup	18
3.3. About Memory Effects on Node Storage	18
3.4. Stream Size Guidance	19
3.5. Adaptive Power Conservation	19
3.6. Proactive Power Conservation	20
3.7. Local Area Replication Using Subclusters	20
Chapter 4. Installing and Configuring DX Storage	22
4.1. Licensing	22
4.1.1. How Licensing Works	22
4.1.2. About licenseFileURL	23
4.1.3. About Licensed Capacity Monitoring	23
4.1.4. About Other Licensing Checks	23
4.1.5. Sample License	24
4.2. Configuring DX Storage	24
4.2.1. Editing node.cfg	25
4.2.2. Storage Volume Configuration	25
4.2.3. DHCP or Static Network	26
4.2.4. Administration Password	26
4.3. Booting DX Storage Nodes	26
4.4. Using Syslog	27

Dell DX6000 DX Object Storage Getting Started Guide - Page 14

Configuring the TFTP Server, 2.4.2.1. Installing and Configuring TFTP - review

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