Abstract: The Compaq ProLiant Cluster for NetWare 4.2, featuring
the Novell High Availability Server (NHAS) for NetWare 4.2/4.11
and Compaq servers and storage, extends reliability on the system
level and provides automatic failover and failback between two
servers with a No Single Point of Failure shared storage system. As a
result, the Compaq ProLiant Cluster for NetWare 4.2 delivers to
NetWare 4.2 environments the highest level of availability in the
industry.
This document details the hardware necessary and provides
configuration guidelines to help select the components needed to set
up the ProLiant Cluster for NetWare 4.2.
The information in this publication is subject to change without notice and is provided “AS IS” WITHOUT
WARRANTY OF ANY KIND. THE ENTIRE RISK ARISING OUT OF THE USE OF THIS
INFORMATION REMAINS WITH RECIPIENT. IN NO EVENT SHALL COMPAQ BE LIABLE FOR
ANY DIRECT, CONSEQUENTIAL, INCIDENTAL, SPECIAL, PUNITI VE OR OTHER DAMAGES
WHATSOEVER (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LO SS OF BUSINESS
PROFITS, BUSINESS INTERRUPTION OR LOSS OF BUSINESS INFORMATION) , EVEN IF
COMPAQ HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH D AMAGE S.
The limited warranties for Compaq products are exclusively set forth in the documentation accompanying
such products. Nothing herein should be construed as constituting a further or additional warranty.
This publication does not constitute an endorsement of the product or products that were tested. The
configuration or configurations tested or described may or may not be the only available solution. This test
is not a determination or product quality or correctness, nor does it ensure compliance with any federal
state or local requirements.
Product names mentioned herein may be trademarks and/or registered trademarks of their respective
companies.
Netelligent, Armada, Cruiser, Concerto, QuickChoice, ProSignia, Systempro/XL, Net1, LTE Elite,
Vocalyst, PageMate, SoftPaq, FirstPaq, SolutionPaq, EasyPoint, EZ Help, MaxLight, MultiLock,
QuickBlank, QuickLock, UltraVie w, Inno vate logo, Wonder Tools logo in black/white and color, and
Compaq PC Card Solution logo are trademarks and/or service marks of Compaq Computer Corporation.
Microsoft, Windows, Windows NT, Windows NT Server and Workstation, Microsoft SQL Server for
Windows NT are trademarks and/or registered trademarks of Microsoft Corporation.
NetWare and Novell are registered trademarks and intraNetWare, NDS, Novell Directory Services, and
Novell High Availability Server (NHAS) are trademarks of Novell, Inc.
Technical Guide prepared by ECG Technology Communications Group
Second Edition (June 1999)
Document Number 0095-0699-A
0095-0699-A
Page 3
Introduction
When availability is a priority, the Compaq ProLiant Cluster for NetWare 4.2 provides robust
fault tolerance across applications, clients, and storage by using Novell High Availability Server
(NHAS) and the Compaq RAID Array 4000 Fibre Channel technology shared storage. The
Compaq ProLiant Cluster for NetWare 4.2 consists of the following components:
A cluster, unlike stand-by failover solutions, consists of two servers, each with its own rights,
permissions, clients, and volumes performing simultaneous, independent tasks. Should either of
the servers fail, the surviving server will inherit all responsibilities and permissions of the failed
server. Each server must be able access to the other’s storage in order to respond successfully to
requests that had been handled by the failed server. Currently, only the Compaq RAID Array
4000, formerly the Compaq Fibre Channel Storage System, allows for multi-server (multiinitiator) control of external storage on ProLiant servers.
In order for the surviving server to mount the volumes of the failed server, it must first detect the
failure. On the ProLiant Cluster for NetWare 4.2, both nodes in the cluster monitor the other
through three different interconnections. The cluster interconnects for the ProLiant Cluster for
NetWare 4.2 are:
• The Fibre Channel Arbitrated Loop and shared storage – the “Disk Link”.
• The servers’ public LAN connection – the “NetWare Link”.
• An optional dedicated connection between the two servers – the “Dedicated Link”.
For an even higher level of availability, each interconnect can be configured with a redundant
backup interconnect. The backup links consists of redundant Network Interface Cards (NICs)
and cables for the NetWare and Dedicated links, and redundant Fibre Channel Host Controllers,
storage hubs, Fibre Channel Array Controllers, and cables for the Disk link. If the primary
interconnect fails, communication continues over the backup.
The ProLiant Cluster for NetWare 4.2 consists of ProLiant Servers, the Compaq StorageWorks
RAID Array 4000 storage system, Novell High Availability Server, Novell NetWare 4.2, and at
least two network adapters. The optional dedicated link between the servers requires two
additional network adapters.
Figure 2 shows two examples of rack-mounted cluster configurations. Each of these
configurations includes two ProLiant servers and a complete Compaq StorageWorks RAID Array
4000 storage system with a Fibre Channel Storage Hub 7.
Figure 2. Examples of rack-mounted ProLiant Cluste r for NetWare 4.2
Optional components include UPS modules, racks, monitors, rack-mounted keyboards, and
switchboxes. The racks shown are configured for optimal placement of cluster components.
Compaq recommends the Compaq Rack Builder Pro software to customize and optimize rack
configurations to your needs. You can download the Rack Builder or Rack Builder Pro software
from the Compaq website at
1.Obtain the Novell High Availability Server software.
Order Novell Software
Order Compaq ProL ian t Se rvers
Make sure you have a t least one
Ethernet adapter for each se rv er
in the cluster. Order addi t ional
NICs, for r edundant or dedicated
connecti ons, as needed.
Contact your local Novell reseller for pricing and ordering information.
2. Order Compaq ProLiant servers.
The most basic blocks of your cluster, Compaq ProLiant servers, are tested
and certified for ProLiant Cluster for NetWare 4.2. When selecting the
ProLiant model for your network, keep in mind that each server in your
cluster should be able to deliver satisfactory performance when operating in
failover mode. Also, make sure that the ProLiant model that you select has
enough PCI/EISA slots to satisfy both current and future connections to the
LAN, storage, and other cluster nodes.
3. Make sure that you have at least one Ethernet adapter for each server
in the cluster.
As a minimum, each server in the cluster must contain one network adapter. If
only one NIC is present in each server, this connection will be used for both
LAN connections and NHAS monitoring. Order additional NICs for
redundant LAN connections or dedicated NHAS monitoring as needed.
4. Order Compaq Fibre Channel Host Controller(s).
Each server must have at least one Fibre Channel Host Controller to connect
to the RAID Array 4000 shared storage. If additional Fibre Channel loops of
shared storage are used, order additional host adapters accordingly.
Additional controllers will also be necessary to configure the RA4000 for No
Single Point of Failure.
5. Order Compaq Fibre Channel Storage Hub(s).
In order to share a RAID Array 4000, the servers must access the array
through a Fibre Channel Storage Hub. Order one hub for each Fibre Channel
loop in your cluster. Order an additional hub if you are configuring a
redundant Fibre Channel loop for No Single point of Failure storage
configuration.
6. If you order a Compaq Fibre Channel Storage Hub 7 and will be
mounting the unit in a rack, you will need a Fibre Channel Storage Hub 7
Rackmount Kit.
The Compaq Fibre Channel Storage Hub 7 cannot be mounted in a rack
system without the rackmount kit. Order a rackmount kit for each FC Storage
Hub 7 that will be rack-mounted. Compaq Fibre Channel Storage Hub 12 does
not require a rackmount kit.
7. Order Compaq Raid Array 4000 Storage System(s).
As the main component of the shared storage, at least one Compaq RA4000
storage system is required for each ProLiant Cluster. Additional RA4000
Order other server options as
needed
storage systems may be connected within the cluster as part of a single Fibre
Channel loop or added as a separate loop. In addition to the RA4000 storage
system(s), each loop will require its own hub and host adapters.
8. Order Compaq Fibre Channel Storage options as needed.
Order hard drives, cabling, and redundant power supplies as per your requirements. The RAID
Array 4000 Redundant Controller can also be ordered. This option enables you to configure a
dual redundant Fibre Channel loop, and includes an additional Fibre Channel Array Controller,
two GBIC-SW Connector Kits, and a Fibre Channel cable. Also, be sure you have the correct
drivers and firmware for the Redundant Controller option. The Redundant Controller option
requires Fibre Channel Array Controller firmware version 2.34 or higher on both controllers, and
NetWare drivers CPQFC.HAM version 2.00 and CPQFC.CDM version 1.30 (found on Smart
Start 4.30 and Novell Software Support Diskettes (NSSD) 5.10A)
9. Order additional NICs for LAN connections as necessary.
10. Order other server options as needed.
0095-0699-A
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