Intergraph InterServe WebScale Manuale utente

InterServe WebScale

Quick-Start Guide

April 1998

DSA086800

trademark law. This document may not, in whole or in part, be reproduced in any form or by any means, or be used to make any

derivative work, without written consent from Intergraph Computer Systems.

Use, duplication, or disclosure by the United States Government is subject to restrictions as set forth in subdivision (c)(1)(ii) of the rights in

technical data and computer software clause at DFARS 252.227-7013. Unpublished rights are reserved under the copyright laws of the

United States.

Intergraph Computer Systems, Huntsville AL 35894-0001

Notice

Information in this document is subject to change without notice and should not be considered a commitment by Intergraph Computer

Systems. Intergraph Computer Systems shall not be liable for technical or editorial errors in, or omissions from, this document. Intergraph

Computer Systems shall not be liable for incidental or consequential damages resulting from the furnishing or use of this document.

All warranties given by Intergraph Computer Systems about equipment or software are set forth in your purchase contract. Nothing stated

in, or implied by, this document or its contents shall be considered or deemed a modification or amendment of such warranties.

Trademarks

Intergraph Computer Systems and the Intergraph Computer Systems logo are registered trademarks of Intergraph Computer Systems.

Other brands and product names are trademarks of their respective owners.

Getting Started

Welcome

Welcome to InterServe WebScale! InterServe WebScale is an integrated software set that

enhances the availability and scalability of Internet server applications such as Web servers,

File Transfer Protocol (FTP) servers, and other mission-critical Web applications. WebScale

provides scaleable, fault-tolerant clustering to two or more servers. Intergraph Computer

Systems’ servers include InterServe Web, InterServe Firewall, and InterServe 80/800/8000

series. The WebScale software set includes:

Intergraph Computer Systems’ WebScale software, based in part on technology from

Valence Research, Inc.

Intergraph Computer Systems’ InterSite WebScale Management Console, an interactive

interface for managing clusters and nodes.

Use this Quick-Start Guide for instructions about installing and configuring your WebScale

software. Along with this document, you received the following documentation:

The WebScale User’s Guide and WebScale online Help, delivered online with the

WebScale software.

Online Help for the InterSite WebScale Management Console, delivered with the

InterSite WebScale software.

NOTE If you purchased a new InterServe server with your WebScale software, use the

System

Setup

and other documentation provided with your system to unpack, set up, and complete

system configuration on your server. Then return to this document for instructions about

installing and configuring your WebScale software.

WebScale

Getting a License Key

Before you can install and run the WebScale software, you must get a license key to enable

the software. The key identifies the machine on which the software can run, as well as the

expiration date of demonstration software.

To get a license key, complete the following form and fax it to Intergraph Computer

Systems, Software Delivery Customer Services, at 1-888-797-5435 or call Intergraph at 1-

800-760-5666. If you are located outside the United States, please contact your local

Intergraph Computer Systems office. When the form is received, a license key will be

generated and returned to you by the response method you specify (email, fax, or telephone).

First name: Street address:

Last name:

Company: City:

Title: Zip/postal code:

Email: Country:

Phone: Fax:

Preferred response method:

WA number or Intergraph order number1:

LAN ID /Service Address Number1:

Serial number of server2:

Select product to be licensed:



WebScale Pro Starter Kit (SH**560)



WebScale Starter Kit (SH**554)



WebScale Run-Time License (SH**555)

Cluster size: Medium (up to 8 nodes)

Full Internet name of cluster:

1The WA number, order number, and LAN ID can be found on the customer packing list

found in the Software Delivery Customer Information folder, included in your software

delivery. A sample of the packing list is shown below, with the required information for the

InterSite WebScale License Key Request form inbold. Call Intergraph Computer Systems

Software Delivery at 1-800-760-5666 if you have difficulty locating this information.

Sample Packing List

Order Number 33084792950815 001 12-Apr-1997

CUSTOMER NAME LAN-ID WA NUMBER

------------- ------ ---------

Main Street Industries 0319563 33084792

QTY PRODUCT NUMBER STATUS PRODUCT NAME STOCK_NBR DOCUMENT MENU

----- ------------- ------------ ------------ ---------- ------

1 SSBY534AC-0200A NFS-CLIENT

SS0N534AC-0202A NFS-CLIENT KSA00570C

1 SSBY534AC-0200A NFS-CLIENT

SS0N534AC-0202A NFS-CLIENT KSA00570C

2The serial number of the server can be found as described in the system documentation

delivered with the server.

Installing WebScale Software

The following instructions provide information for installing WebScale software on a system

with single or dual installed network interface cards (NICs).

A WebScale server configured with a single installed NIC is the most common configuration

and will provide good overall performance for most types of cluster configurations and

network traffic patterns. However, if you have a large amount of dedicated traffic, you may

improve performance by using a second NIC to segregate the cluster traffic from the

dedicated traffic. For example, you may have high-volume replication between the

WebScale cluster servers for which there may be no low usage hours in which to schedule

the replication, or you may have routine transfers of large amounts of data to and from your

servers.

Gathering Pre-Installation Information

Determine the following information before setting up WebScale. Record the information in

the space provided:

Primary Internet Protocol (IP) Address: The cluster-wide

virtual IP address to be used for all hosts in the cluster.

Subnet mask: The subnet mask for the cluster’s primary IP

address.

Full Internet Name: The cluster’s full Internet name (for

example, cluster.mycompany.com) which resolves to the

Primary IP Address. Refer to your license key form for this

information, and ensure that the Internet name you specify

matches the name listed on the license key form.

Existing IP information:The IP addresses and subnet masks

for any existing NICs on the system. If using multiple NICs of

the same model, take note of the instance number of each NIC

to differentiate between these interfaces during configuration.

Verify that the NIC, interface driver, and Domain Name Service (DNS) configurations are

correct on your server:

You can verify the NIC functionality by pinging or connecting to a remote system.

Verify with your DNS administrator that an entry has been made into your DNS

database to resolve the Full Internet Name of the cluster to the Primary IP Address. If

the fully-qualified name for the cluster is not resolvable to the Cluster IP Address, then

use of the Final License Key will not be possible.

NOTE The Primary IP address is

specific to the cluster

, and does not address any individual server.

This address may also be referred to as the cluster IP address or virtual address.

Determine if your router supports proxy Address Resolution Protocol (ARP) for multicast

Media Access Control (MAC) addresses. If not, you will need to create a static ARP entry in

your router to resolve the Primary IP Address to the Cluster’s MAC address (as displayed in

the WebScale Setup Dialog, once Setup is complete).

NOTE Cisco routers must have a static ARP entry because they do not support proxy ARP for

multicast MAC addresses.

Installing the Software (Single and Dual NIC)

The instructions below provide a step-by-step list for installing your Intergraph Computer

Systems WebScale software.

NOTE For more complete information about installing and using the WebScale product, refer to the

online

WebScale User’s Guide

and WebScale product Help, available on the Intergraph

WebScale diskette.

To install WebScale:

1. Insert the diskette containing the WebScale software into the system’s floppy disk drive.

2. From the Windows NT Start menu, select Settings, and then click Control Panel, and

then double-click the Network icon.

3. Click on the Adapter tab. Click Add, and then click Have Disk. The Insert Disk

dialog displays.

4. Ensure that the path name to the WebScale diskette is correct, and click OK.

5. Click OK to install the WebScale driver.

6. After the driver is installed, a notice displays prompting you to ensure that network

bindings are set properly. Click OK.

7. Setup displays the WebScale license agreement. Read the agreement, and click Agree

to accept it. The WebScale Setup dialog displays.

8. The WebScale Setup dialog is divided into sections, with each section applying to a

different aspect of the cluster configuration. Each section is described below:

− Cluster Parameters. These parameters are cluster-wide, and must be the same for

all host computers in the cluster. Unless otherwise noted, these fields are required:

Primary IP

Address The cluster IP address you recorded earlier in “Gathering

Pre-Installation Information.”

Subnet Mask The subnet mask for the Primary IP Address.

Full Internet

Name The fully-qualified DNS node name of the cluster, as

recorded earlier in “Gathering Pre-Installation

Information.”

Network Address The Cluster’s machine address (MAC). This information is

determined by the software; an entry for this field is not

required.

Multicast

Support Intergraph Computer Systems recommends you leave this

parameter checked (the default setting is enabled) unless

instructed otherwise by our support staff. Using this option

may require a static ARP entry depending on the capability

of your router (see the section “Gathering Pre-Installation

Information” above for more detail).

Remote

Password If you enable Remote Control, you should create a password

for security.

Remote Control Leave this option enabled (checked) if you want to

administer this cluster host from a remote system.

− Host Parameters. These parameters are unique for each cluster node, or host.

Unless otherwise noted, these fields are required:

Priority (ID)The Host priority is a value unique to each server in the

cluster. It specifies the host’s traffic handling priority for

Transmission Control Protocol (TCP) and User Datagram

Protocol (UDP) ports not managed by the Port Rules section

of the WebScale Setup dialog. This priority is used when a

host within the cluster fails.

Initial State Indicates whether the host should immediately join the

cluster when Windows NT is started. The default is

enabled, or checked.

Dedicated IP

Address The host’s unique, or real, IP address. The address is used

for network traffic not associated with the cluster (for

example, replication traffic between cluster hosts). In a

single NIC configuration, this will be the physical adapter’s

original IP address. For dual NIC configurations, this entry

is not necessary.

Subnet Mask The subnet mask for the dedicated IP address.

− Licensing. These required parameters control the licensing information for the

cluster:

License Key The final license key, obtained earlier as described in

“Getting a License Key.” If the Domain Name Service

(DNS) nodename for the cluster is not yet resolvable, enter

the supplied trial key.

NOTE The port rules entered on each host in the cluster must have matching

Port Ranges,

Protocol Types, and Filtering Modes set up for them. If WebScale detects an inconsistent

rule among the hosts in the cluster, it will enter a message in the Windows NT Event Log and

the host will not be accepted as part of the cluster.

− Port Rules. These parameters control how cluster traffic is handled for groups of

TCP and UDP ports:

Port Range The range of TCP or UDP port numbers which are

controlled by the rule you are currently defining or

modifying. For example, if you wanted to specify a rule for

HTTP traffic (port 80), the range would be 80 to 80.

Protocols The protocols allowed on the ports you have defined for the

current rule. Select TCP, UDP or BOTH.

Filtering Mode The method of distributing incoming network traffic to the

cluster. Select one of the following:

Multiple

Hosts Allows WebScale to automatically distribute

the port’s network traffic to multiple hosts

within the cluster, according to a load

percentage that you specify.Page Break

Single

Host Directs all of the port’s network traffic to the

host with the highest handling priority.

In this mode, you specify a set of priorities for

handling the port’s network traffic in the

event of a host failure. This lets you assign

the network traffic for different host ports to

different servers in the cluster, and customize

the failover policy for each port.

Disabled Blocks all traffic to the port. This option is

useful for providing a firewall against

unwanted network access to your cluster.

NOTE Refer to the online Help for a more detailed explanation of the Loading and Affinity options.

9. Click Add to add the new rule, and then click OK to exit the configuration.

10. Continue to the section titled “Configuring Bindings” appropriate to your configuration

(single or dual NICs).

Configuring Bindings (Single NIC)

This section provides instructions for configuring the network bindings if your cluster has a

single NIC configuration. If your cluster has a dual NIC configuration, refer to the following

Dual NIC section.

To configure bindings for a single NIC cluster configuration:

1. Click the Bindings tab under the Network Settings Dialog, and select All Protocols

from the Show Bindings pulldown.

2. Click on each protocol to expand it.

3. For each protocol, select the WebScale Virtual NIC, and then select Move Up to move

the WebScale protocol above thededicated adapter (this adapter is the physical NIC).

4. Select the dedicated adapter under the TCP/IP and WINS Client protocols, and click

Disable so only the WebScale Virtual NIC adapter is enabled.

NOTE Both adapters (virtual and dedicated) should still be enabled, or bound, under the WebScale

Driver Protocol.

5. Click the Protocolstab, and click Yes to save the changes. The Microsoft TCP/IP

Properties dialog displays.

6. Click Adapter. The WebScale Virtual NIC adapter should be the only adapter visible.

7. Configure the TCP/IP settings for this adapter as if it were the dedicated network

adapter (with the node’s real IP address information, not the cluster’s virtual IP address

information), and then click Advanced.

8. Under IP Addresses, click Add to add the cluster’s IP address. After entering the IP

address, you should see two IP addresses in the list: the node’s real IP address and the

cluster’s virtual IP address. Click OK.

9. Click OK again to confirm the network bindings, and then close the Network Settings

dialog.

10. Restart the system as prompted to allow the changes to take effect.

Configuring Bindings (Dual NIC)

This section provides instructions for configuring the network bindings if your cluster has a

dual NIC configuration. If your cluster has a single NIC configuration, refer to the previous

Single NIC section.

1. Click the Bindings tab under the Network Settings Dialog, and select All Protocols

from the Show Bindings pulldown.

2. Click on each protocol to expand it.

3. For each protocol, select the WebScale Virtual NIC, and the select Move Up to move

the WebScale protocol to the top of binding order for each protocol.

4. Select the WebScale Driver protocol, and enable both the WebScale Virtual NIC and

the cluster adapter (the physical adapter which WebScale will use for cluster traffic) by

selecting each adapter and clicking Enable. Select all other adapters (such as the

dedicated adapter for the node), and click Disable to disable them.

5. Under both the WINS Client and TCP/IP protocols, select both the WebScale Virtual

NIC and the dedicated adapter (the physical NIC for the node), and select Enable to

enable them. Select the cluster adapter, and select Disable to disable it.

6. Click the Protocolstab, and click Yes to save the changes. The Microsoft TCP/IP

Properties dialog displays.

7. Click Adapter and select the WebScale Virtual NIC. Type the cluster IP address in

the IP Address field. Enter the Subnet Mask and Default Gateway for the cluster IP

address.

8. Click OK to complete the network bindings, and then close the Network dialog.

9. Restart the system as prompted to allow the changes to take effect.

Testing the Configuration

When the system is restarted, you can test the validity of the WebScale configuration by

using the following commands from the MS-DOS command prompt:

Command Action

webscale query Shows that the system is working and confirms the system

configuration by displaying the current settings.

webscale display Displays the current details about the cluster.

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