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DIGITAL Server Cluster Kits for Windows NT
User Manual
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Compaq DIGITAL Server Cluster Kits for Windows NT User Manual

Compaq Clustering Solutions for Windows NT
DIGITAL Server Cluster Kits for Windows NT
Configuration Guide v2.73
November 1998
Prepared by:
Clustering Product Management Compaq Computer Corporation
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Contents
Compaq Clustering Solutions..................................................................................................................4
Clustering .........................................................................................................................................4
Why Compaq ....................................................................................................................................4
Hardware...........................................................................................................................................4
Cluster Kits.......................................................................................................................................5
Interconnects.....................................................................................................................................5
Tools.................................................................................................................................................5
Enterprise Cluster Software...............................................................................................................6
Worldwide Service and Support.........................................................................................................7
Highlights .........................................................................................................................................7
Microsoft Cluster Server.........................................................................................................................8
DIGITAL Clusters for Windows NT....................................................................................................10
Highlights...........................................................................................................................................10
Features ..............................................................................................................................................10
DCNT v1.1 SP2 ..................................................................................................................................11
Upgrading from DCNT v1.0 to v1.1 SP2.............................................................................................11
DCNT V1.1 SP1 .................................................................................................................................12
Upgrading from DCNT to MSCS........................................................................................................14
Typical DCNT Environment ...............................................................................................................14
Supported DCNT Hardware ................................................................................................................15
Differences between DCNT and MSCS................................................................................................18
Why Buy Clusters from Compaq?........................................................................................................19
ServerWORKS Manager......................................................................................................................20
Overview.............................................................................................................................................20
Highlights...........................................................................................................................................20
Using ServerWORKS Manager with Clusters......................................................................................21
Discovering Clusters .......................................................................................................................21
Viewing Information about Cluster Resource Groups.......................................................................22
Setting an Alarm on a Cluster Resource or Group............................................................................23
Monitoring for Transitions..............................................................................................................25
DIGITAL Server Cluster Kits..............................................................................................................25
DIGITAL Server Cluster Kit Overview ...............................................................................................25
DIGITAL Server Cluster Kit Components...........................................................................................26
Components NOT included in the DIGITAL Server Cluster Kits.........................................................36
Expansion Cabinets.........................................................................................................................38
RAID Options .................................................................................................................................39
Cluster Contacts..................................................................................................................................41
Ready-to-Go Clusters............................................................................................................................41
Ready-to-Go Cluster Components........................................................................................................42
Components NOT included in the Ready-to-Go Clusters .....................................................................42
Ordering Ready-to-Go Clusters ...........................................................................................................43
Ready-to-Go Clusters Contacts............................................................................................................43
Multivendor Customer Services for Windows NT and Windows NT Clusters....................................43
MSCS Certified Configurations............................................................................................................47
MSCS Certifications ...........................................................................................................................48
Ordering DIGITAL Hardware/Software for a NT Cluster.................................................................49
Cluster Quick Start...............................................................................................................................60
Pointers for More Information .............................................................................................................63
A Special Thanks ..................................................................................................................................63
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Compaq Clustering Solutions
Compaq Clustering Solutions for Windows NT maximize access to enterprise data by providing a means by which users can continue working even in the event of a server failure. These high-availability solutions allow a pair of DIGITAL Servers running Windows NT to be managed and accessed as a single system and support both DIGITAL Clusters for Windows NT (DCNT) and Microsoft Cluster Server (MSCS) as part of Microsoft Windows NT Server, Enterprise Edition. System-level high availability is assured through dual active servers, shared SCSI, optional redundant power supplies and a redundant interconnect between the nodes. The addition of subsystem RAID Array assures high availability of shared data.
Clustering
The cost of downtime has been reported to be anywhere from $1,400/minute to $130,000/minute, depending on your particular business. The need to keep your systems up and running in this high technology era is critical to save not only thousands and sometimes millions of dollars, but to maintain user productivity and customer satisfaction as well.
With the introduction of Windows NT Server Enterprise Edition, Microsoft has brought clustering capabilities to the mainstream. Clustering provides high availability for server-based applications and file shares by loosely coupling two active servers with a shared disk subsystem. When one server goes down, the clustering software migrates applications, associated disks and file shares, and client workload to the other server without interruption at the client level. With a minimal hardware investment, any business can protect their mission-critical data and applications to maintain optimal user productivity.
DCNT is a proven, mature product. It supports IP address failover, enabling automatic failover for applications, such as Microsoft Internet Information Server, Netscape Enterprise Server, Lotus Notes and Lotus Domino, Microsoft SQL Server 6.5, Oracle 7 Workgroup Server, and Oracle 7 Enterprise Server
7.3. A Migration Wizard utility provides easy migration from DCNT to MSCS. Compaq’s clustering technology provides industry leadership for application availability, scalability for
data storage and user support, cluster system management, high speed storage interconnects, high performance TP, and Disaster Tolerant capabilities for Windows NT systems.
Why Compaq
DIGITAL, a pioneer in cluster technology, has been shipping cluster solutions since 1983, including DCNT for a full 18 months before MSCS. With over 75,000 installed clusters and 500,000 clustered nodes deployed across Windows NT, DIGITAL UNIX, and OpenVMS, including over 7,000 DCNT licenses, DIGITAL, now Compaq, is unquestionably the market leader. In fact, Compaq has more experience with clustering and more engineers trained to support Windows NT than any other vendor, including Microsoft.
Hardware
Customers have the option of purchasing DIGITAL Servers for Windows NT (Intel or Alpha-based) for their cluster. Providing customers with a totally scalable solution, the DIGITAL Server product line extends the Intel-based server products for NT, offering quad processors for additional performance and into the Alpha-based DIGITAL Server products. Compaq also offers external RAID Arrays -- all certified to run with both DCNT and MSCS. Redundant controllers, power sources, and cooling fans help your high-availability configuration to approach levels of fault-resilience.
Cluster Kits
Compaq provides complete clustering solutions with hardware, tools, services, and support for the Windows NT environment. To ensure proper configuration and implementation of the clustering hardware and software infrastructure, Compaq provides a series of Cluster Kits, which include:
• Storage array with RAID controllers
• Ultra SCSI or Fibre Channel adapters
• RAID software and firmware
• Private network adapters between servers
• Cables and terminators
• ServerWORKS Manager software
• Cluster documentation
Interconnects Compaq provides a range of interconnect solutions to meet the needs of high availability clustering
requirements from entry level to enterprise-level environments. As clusters move from two-node high availability to multi-node high performance scalable clusters, the need to support the infrastructure for both storage and cluster node communication becomes critical. Clusters use two types of interconnects:
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• Storage Interconnects For two-node clusters, Compaq provides ultra-SCSI interconnects. For more than two-node clusters,
SCSI Hub technology eliminates multi-node and bus length restrictions. For high performance multi­node environments, Fibre Channel and fault tolerant solutions will be provided.
• Cluster Interconnects For two-node clusters, Ethernet provides sufficient bandwidth to support failover between servers. As
the number of servers in a cluster grows, (OPS, multi-node clustering) Compaq plans to offer support for high performance, low latency interconnects.
Tools
Solution Sizer and ServerMaker tools provide sizing and configuration assistance for Windows NT Clustering Solutions. These tools are provided to Compaq’s Business Partners, sales people and systems engineers.
Solution Sizer
Solution Sizer eliminates the guesswork involved with sizing servers and clusters by determining the key server characteristics that will ensure a successful business solution. Through a “wizard” style interview process, the user provides customer-specific information about their business needs and environment. Solution Sizer acts as a personal characterization consultant, analyzing the data to determine key sizing metrics for the specific application. Solution Sizer draws on vast characterization data compiled by Compaq’s performance labs, to recommend an appropriate server configuration.
Solution Sizer is capable of sizing server solutions for popular internet/intranet, mail and messaging, and other business applications. The tool is updated frequently to add to the portfolio of application solutions
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that it can size. Solution Sizer is also linked to ServerMaker, which provides detailed, validated server configuration data, including parts lists and reseller-specific pricing data.
ServerMaker
ServerMaker is an easy to use, Windows-based, interactive software configuration tool designed to lead the user step-by-step through the DIGITAL NT Server configuration process. ServerMaker accurately and easily configures single DIGITAL Servers or NT Clusters, and provides both pedestal and rackmount configurations. ServerMaker has a point-and-click interface, and is robust, but not resource intensive. It runs on any Microsoft Windows 95 or Windows NT industry standard desktop or notebook PC.
At the end of your ServerMaker session, you can generate a parts list. Price files are not included in ServerMaker. However, you can obtain a copy of the DIGITAL Server price file (in Excel format) from the DIGITAL Business Link, or your authorized Compaq representative to load into ServerMaker for quoting purposes.
You can download both Solution Sizer and ServerMaker at: http://www.businesslink.digital.com
ServerWorks Manager
ServerWORKS Manager enables system administrators to monitor cluster resources and generate alarms in the event of a failover. See the Using ServerWORKS Manager with Clusters section for instructions on how to use ServerWORKS Manager to perform these operations.
ClusterWORKS
The ClusterWORKS program includes a variety of tools to assist customers in configuring their cluster. The Cluster Checkout Utility verifies the hardware installation, by identifying problems and recommending solutions.
For those customers that choose to migrate from DCNT to MSCS, there is a Migration Wizard. With an easy-to-use graphical interface, the Migration Wizard retains the customer’s system administrative investment in clustered file shares, IP, and script objects.
Cluster Quick Start
Whether you are using MSCS or DCNT to create a highly-available computing environment, the installation consists of many hardware and software components and procedures. To get you started, the Cluster Quick Start provides a high level, generic overview of the cluster installation and configuration process using a RAID Array and two DIGITAL Servers. These instructions include general steps for both DCNT and MSCS and includes pointers to resources for detailed instructions.
You can download the Cluster Quick Start from our internal web site at akin40.mro.dec.com. It will also be included in future Cluster Kits.
Enterprise Cluster Software Visual Batch enables system administrators to quickly build batch jobs on clusters using a graphical user
interface. Enterprise Cluster Software for Windows NT will bring OpenVMS cluster technology to complement
MSCS by providing:
• A shared disk pool to farm out disk space as virtual disks. This technology is based on a proven shared-disk technology. To date, there are over 500,000 OpenVMS “shared everything” clustered systems.
• Mirrored cluster support to provide disaster-tolerance.
• Support for more than two servers in a cluster, appearing as if they’re the same disk.
• SnapShot Services to back up a system’s metadata before upgrading to a new release. If the customer
has problems with the upgrade, SnapShot allows the system administrator to roll back to the captured configuration.
Enterprise Cluster Software for Windows NT will provide functionality that won’t be available on MSCS for at least 18 months!
Worldwide Service and Support Compaq’s Customs Systems offers Ready-to-Go clusters, providing custom configured Intel or Alpha-
based DIGITAL Servers with storage in a rackmount configuration. All components are preinstalled, preconfigured, and pretested to the customer’s specifications, getting the customer up and running fast. These systems can be configured before they leave the factory or at the customer’s site.
Compaq endorses a 99.5% uptime guarantee for business critical systems. To back up this guarantee, Compaq has built a worldwide support infrastructure with over 1,700 Microsoft Solution Providers and over 5,000 support certified professionals on Microsoft products. In fact, Compaq has more Microsoft-
certified professionals than Microsoft and Dell combined!
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Compaq provides next-day service warranty for three years, which can be upgraded to same day response. Compaq also provides total lifecycle support with a single point of accountability for multi-vendor support. Services include design, implementation, installation, and startup.
Highlights
Compaq Cluster Solutions:
• Offer a proven, low-cost, high-availability solution for PC client/server LANs using Windows NT systems.
• Minimize user downtime by automatically and transparently failing over to a second server, maximizing productivity by making both servers available for user and application workloads at all times.
• Provide broadest, most scalable range of servers and storage for Windows NT, enabling businesses to grow their processing, storage and I/O capacity, maximizing their investment protection.
• Combine prepackaged tools and applications to help you build and administer clusters, including OS Dependent Module (OSD) for Oracle Parallel Server on Windows NT.
• Provide ServerWORKS Manager, which enables system administrators to monitor cluster resources and generate alarms in the event of a failover.
• Provide turnkey cluster solutions that are preinstalled, pretested, and preconfigured per customer specifications for fast startup.
• Offer a worldwide infrastructure of support and services with the largest number of Microsoft Solution Providers.
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• Qualify and certify DIGITAL Server 1000, 3000, 5000, and 7000 families with currently supported processor variants on Microsoft’s Hardware Compatibility List. This enables your system to be supported by Microsoft technical assistance.
• Qualify and certify DIGITAL hardware for use with DCNT and MSCS. Configurations listed on Microsoft’s Hardware Compatibility List enables your system to be supported by Microsoft technical assistance.
Microsoft Cluster Server
Microsoft Cluster Server (MSCS) is a built-in feature of Windows NT Server, Enterprise Edition (released
September 1997). It supports the connection of two servers in a cluster for higher availability and easier manageability of data and applications.
MSCS provides a single, virtual image of the servers in a cluster to clients. If one server fails, the applications on the failed server are available on the other server. (You can also fail over groups of network applications, data files, and tools using an IP address, network name, physical disk, and generic or customer application or service.) During the failover process, client communications with applications usually continue with little or no interruption. MSCS can detect interruptions in service in less than 5 seconds and can make services available in less than 30 seconds, depending on how long it takes to start the application.
You can also use MSCS to move workload between servers to balance utilization and plan for maintenance without downtime.
MSCS consists of two major components:
• Cluster Software – runs on every server to exchange messages that trigger the transfer of resources and operations in the event of a server failure. Cluster software consists of:
• Cluster Service that runs on each server in a cluster, keeps track of the current state of the
servers, and determines when a server’s group and resources should fail over to the other server.
• Resource Monitor that facilitates communication between the Cluster Service and application
resources.
• Cluster Administrator – is a graphical application that manages clusters, so that you can:
• Specify the applications and related components that run on each server
• Manage services, file shares, and directory replication
• Establish failover and failback policies (set failover threshold and failover period) and:
• Specify the order when resources fail over and fail back
• Specify the order in which groups fail over
• Specify resources and group properties affecting the failover policy
• Bring groups online and take groups offline
• Manually move groups between servers
• Determine which servers are running applications and services
• Review activities and failures of components in a cluster
• Manually take servers offline for maintenance
Many applications can be adapted to take advantage of MSCS’ failover feature. These applications must be able to use TCP/IP and use remote storage for its data. (Applications that keep a significant state information in memory are not the best applications for clustering because any data not stored on disk is lost at failover.) Applications that can be failed over can support MSCS API or not. Those applications that support the MSCS API are MSCS-aware. MSCS-aware applications can be registered with the Cluster Service to receive status and notification information and use the MSCS API to administer clusters.
Although MSCS protects the availability of data, not the data itself in a cluster, the Windows NT Server has built-in features including mirroring and redundant array of inexpensive disks (RAID Level 5, stripping with parity). The following table lists common points of failure in a Windows NT Server environment and suggests protection methods:
Point of Failure MSCS Other Network hub Redundant networks Consider stocking replacement
network components
Power utility Uninterruptable power supply (UPS)
provides power for 5 to 20 minutes for a proper shutdown
Disk RAID array
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Server hardware (CPU or memory) Failover DIGITAL Servers 5000 and 7000
series provide redundant power and cooling
Storage Failover StorageWorks RA3000, 450, 7000
offer redundant power, cooling, cache, controllers, cache batteries
Consider stocking replacement disks, controllers, SCSI components
Server software (operating system
Failover
or applications) WAN links (routers and dedicated
lines)
Redundant links over the WAN,
providing secondary access to remote connections
Dial-up connection Multiple modems Computer Multiple clients for the same level of
access
Any client that can connect to Windows NT Server through TCP/IP will work with MSCS. This includes Microsoft MS-DOS®, Microsoft Windows® 3.x, Windows 95, Windows NT, Apple® Macintosh®, and UNIX®. MSCS does not require any special software on the client for transparent recovery of services that connect to clients through standard IP protocols.
For more information on MSCS, see http://www.microsoft.com/ntserver/support/clusterfaq.asp#basics.
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DIGITAL Clusters for Windows NT
DIGITAL Clusters for Windows NT (DCNT) is a layered application on top of Windows NT. It is based
on open industry standards and commodity building blocks. Important components are dual active servers, shared external SCSI storage and a GUI-based cluster configuration manager. DCNT has provided the benefits of clustering on Windows NT since 1996.
Highlights
• Offers a reliable and low-cost, high-availability solution for PC client/server LANs.
• Minimizes user downtime by automatically and transparently failing over to a second server;
maximizing productivity by making both servers available for work all the time.
• Ensures investment protection for existing client applications, which run without modification using NTFS failover.
• Allows the initiation of manual failover, so that preventive maintenance, user load balancing, or system upgrades can be performed without disruption.
• Offers a choice of servers and CPUs with select SCSI and network adapters for ease of integration and configuration flexibility.
• Unique failback capability enables a failover group to migrate back to the original server when the server is brought back online.
Features
• System-level high availability System-level high availability is assured through dual active servers, shared storage, optional
redundant power supplies and a redundant interconnect between the nodes to ensure highly available data paths.
• Maximum access to enterprise data For the user, the cluster is accessed like a single server. Automatic failover of database and file services is provided without system administrator or end-
user/client intervention.
• Greater manageability and flexibility DCNT includes a GUI to specify which disks, shares, and applications need to fail over together. Every DIGITAL Server comes bundled with ServerWORKS Manager software to ease the burden of
managing the LAN. ServerWORKS™ Quick Launch simplifies installation and setup.
• Designed for the Windows NT environment This system is designed to be consistent with standard client/server workloads and usage models to
provide maximum uptime for the most critical client/server applications.
• Failover Manager The Failover Manager monitors events that may call for a failover, determines which services should
be failed over and manages them until service is resumed.
• Remote Cluster Administrator Remote Cluster Administrator that provides remote cluster management functions enabling the user
to manage any cluster from a Win95 or Windows NT workstation or server.
• Scalable design Scalability of each server allows for growth in processing, storage and I/O capacity to maximize
investment protection ranging from 1000 to 7000 series servers.
DCNT v1.1 SP2
The latest Service Pack for DCNT (v1.1 SP2) is available for download from: Externally - http://www.windows.digital.com/clusters Internally - http://ntsssweb.zso.dec.com/ntnone/clusters/dcnt.htm This release is also included with the FR-CK450-RP/RR DIGITAL Server Cluster Kits. DCNT V1.1 SP2 contains:
• Remote Cluster Administrator that provides remote cluster management functions enabling the user to manage any cluster from a Win95 or Windows NT workstation or server.
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• Supports IIS 4.0 and Netscape SuiteSpot 3.0
• Enhances SQL configuration and deployment
• Fixes SQL bugs including:
Vstart uniqueness Lstart duplicate Inconsistent fallback tables Binary sort order Fallback table integrity
For more information about DCNT, see http://www.windows.digital.com.
Upgrading from DCNT v1.0 to v1.1 SP2
This configuration guide is designed to assist the reader with new NT cluster purchases. For existing
DCNT v1.0 users, an upgrade software package is available using part number QB-53V9B-MA, which includes:
• Media
• Documentation
• Upgrade licenses for two servers
• Readme first document
Note: QB-53V9B-MA also requires the purchase of a DCNT v1.1 software, obtained through a
DIGITAL Server Cluster Kit (FR-CK450-RP/RR only). Otherwise, you must order it separately using part number QB-53V9A-SA.
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DCNT V1.1 SP1
Although only billed as a service pack, v1.1 SP1offers some fairly significant new functionality, including
some of the most-requested enhancements to the product:
• DCNT IP Address Failover Support for File Shares DCNT provides the ability to failover a NetBIOS over TCP/IP (NetBT) name in association with an
IP address. The feature enables the capability of failing over file shares, which can be accessed over a wide area network using TCP/IP.
Support is provided in the Cluster Administrator for specifying NetBIOS Names in association with IP failover objects.
A NetBIOS Name is used to identify a host for providing LAN Manager services, such as file shares or named pipes. Also, since the LAN Manager protocol is actually contained inside TCP/IP packets, the NetBIOS Name is associated with an IP address.
LAN manager services, such as file shares, are made accessible on a wide area network by layering them on top of TCP/IP. This is accomplished using "NetBIOS over TCP/IP" (NetBT).
For details on setting up and using this new feature, see the "DIGITAL Clusters for Windows NT Administrator's Guide Addendum".
• DCNT Elimination of Client Software Requirement Clients do not need to install cluster client software if they plan to access only socket-based
applications or NTFS file shares through a TCP/IP connection on DCNT V1.1 SP1. Compaq recommends that you configure IP failover for new cluster installations. IP failover offers the
following advantages:
• Eliminates the need to install cluster client software. On a large network, this saves both time
and disk space.
• Eliminates the possibility of compatibility problems between the cluster client software and 3rd
party networking products.
Note: One example of a product that previously conflicted with the cluster client software was Citrix
WinFrame, which should be supported in a clustered environment, according to Clusters product management.
• Allows WAN access to NTFS file shares. You can install cluster client software on Windows NT, Windows 95, and Windows for Workgroup
systems that need to access the cluster by using the cluster name alias.
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• DCNT SQL Server Support Enhancements
• Any DCNT stored procedures that are not in the SQL Server master database are automatically
detected and installed when the system is rebooted.
• Uninstalling DCNT deletes all the DCNT stored procedures introduced to your SQL server
during DCNT installation.
• You cannot manually failover groups that contain disks on which unenrolled SQL Server
databases reside. With SQL 6.5, attempting to manually failover these groups caused problems. If you attempt it, you will see an error message displayed and the group will remain online on its current server until all the unenrolled databases are enrolled.
• Before bringing up the Manage SQL Server Databases dialog, the Cluster Administrator fetches
information about SQL Server databases. Prior to SP1, the user had to manually refresh if databases had been created since the Cluster Administrator was invoked.
• You can no longer delete nor modify SQL Server failover objects. These operations were no
longer necessary in V1.1, but the menu options were still available. Deletion and modification of SQL Server failover objects takes place automatically by using the Manage SQL Server Databases menu choice.
• In a previous version of DCNT, the user had to create all SQL databases from the same server.
This restriction no longer applies.
The SQL server support enhancements, as well as the bug fixes incorporated into SP1, are also available for NT 3.51 installations with DCNT v1.0, in the form of SP3. The IP failover capabilities, along with the elimination of the client software requirement, both require NT 4.0 and DCNT v1.1.
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Upgrading from DCNT to MSCS
DCNT’s Migration Wizard helps customers migrate from DCNT V1.1 to MSCS. The Migration Wizard
has two major components:
• MIGWIZ/RDC (Read DIGITAL Clusters) - checks to ensure that DCNT is installed, reads the DCNT configuration, and writes that information to a file.
• MIGWIZ/CCS (Configure Cluster Server) - using the configuration information stored by MIGWIZ/RDC, configures MSCS.
In addition, the Migration Wizard provides:
• DIGITAL Custom Resource DLL Registration Tool that automatically registers DIGITAL custom resource DLLs.
• A Generic Script DLL that enables the creation of a script failover resource to run NT command scripts when a resource group come online or goes offline.
It is important that your configuration is listed on Microsoft’s Hardware Compatibility List. This enables your system to be supported by Microsoft technical assistance. To see if your configuration is supported, go to:
www.microsoft.com/hwtest/hcl Select Cluster in the first field; Digital Equipment Corp. in the second field. If you have a certified configuration, you can either contract with Multivendor Customer Service (MCS) to
install the Migration Wizard software and check your system or install the Migration Wizard software and check it yourself. If you want DIGITAL to install the software, contact MCS and ask for part number, QR­SMWNT-BL. If you want to install the software yourself, you can download it from:
http://www.windows.digital.com/clusters/migration/configs2.asp.
Typical DCNT Environment
Supported Servers: DIGITAL Server 1000, 3000, 5000, 7000 families and CPU variants Operating System: Microsoft® Windows NT 4.0 with Service Pack 3 Failover Services: DCNT software supports failover of:
• NTFS File System
• Microsoft SQL Server 6.5
• Oracle Workgroup Server 7.1 and 7.2
• Lotus Notes Domino 4.6
• Microsoft Internet Information Server 4.0
• Netscape SuiteSpot Server 3.0
• Generic application failover via scripting
Network Protocols: TCP/IP, NETBEUI, IPX/SPX Hardware: Dual Intel-based or Alpha-based DIGITAL Servers, dual PCI Fast-Wide SCSI host
adapters/cables, external shared Hot-Swap storage (RAID or JBOD), dual PCI Ethernet
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Client Support: Windows NT 4.x, 3.51, Windows for Workgroups 3.11, Windows 95
Supported DCNT Hardware
DCNT v1.1 SP2 has been qualified in the following configurations using DIGITAL Servers:
Note: Before using any of the hardware listed, consult the documentation for your system to be sure the
options you selected are also supported on that system. Both DCNT and your system must support the hardware in your cluster configurations.
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Server Family Cluster
System BIOS (Intel)
Min ARC Firmware (Alpha)
Kit
12xx
RA310 RA3103 or
Storage Host Bus
Adapter
2944UW
RA3000
Network Controller
Min SCU (Intel) Or
Or
Min ECU (Alpha)
1
FR-DE500-BA V1.10e V2.06
31xx
32xx
33xx
AlphaServer 800 51xx
52xx
53xx
AlphaServer 1200
RA310 RA450 BA356 RA3000
RA310 RA450 BA356 RA7000 RA3000
RA310 RA450 RA7000 RA3000
RA3103 or RA4503 or BA356 or RA3000
RA3103 or RA4503 or BA356 or RA7000 or RA3000
RA3103 or RA4503 or RA7000 or RA3000
2944W1 or 2944UW
2944W1 or 2944UW
KZPSA2 or 2944UW
1
1
1
RA3000 RA3000 KZPBA-CB RA310
RA450 RA7000 RA3000
RA310 RA450 RA7000 RA3000
RA450 RA7000 RA3000
RA450 RA450
RA3103 or RA4503 or RA7000 or RA3000
RA3103 or RA4503 or RA7000 or RA3000
RA4503 or RA70003 or RA3000
3
2944W1 or 2944UW
2944W1 or 2944UW
KZPSA2 or 2944UW
1
1
1
KZPBA-CB
FR-DE500-BA or
V1.10e V2.06 FR-DE500-AA or FR-DE450-CA
FR-DE500-BA or
V1.01.01 V1.10 FR-DE500-AA or FR-DE450-CA
FR-DE500-BA or
V1.10 AlphaBIOS V5.64 FR-DE500-AA or FR-DE450-CA
2
FR-DE500-BA V1.10 AlphaBIOS V5.64 FR-DE500-BA or
V1.08e V1.10 FR-DE500-AA or FR-DE450-CA
FR-DE500-BA or
V1.08e V1.10 FR-DE500-AA or FR-DE450-CA
FR-DE500-BA or
V1.10 AlphaBIOS V5.65 FR-DE500-AA or FR-DE450-CA
2
FR-DE500-BA V1.10 AlphaBIOS V5.65
71xx
AIC78XX.SYS, file version 4.00, product version 4.00,
that comes with NT 4.0 SP3.
the HSZ driver, the version numbers for both the Adaptec 294X and HSZ are displayed as part of the installation process.
ckLaunch automatically installs the 2.11 Adaptec driver. If you need to use the 1.25c Adaptec driver, uninstall the 2.11 Adaptec driver and then
that comes with DIGITAL Server Cluster Kits. If you need to
DIGITAL Server Cluster Kits
www.storage.digital.com
Supports both single and multiple processors on DIGITAL Servers, except for the 12xx and 33xx, which are single processor only.
RA310 RA450 RA7000 RA3000
RA3103 or RA4503 or RA7000 or RA3000
2944W1 or 2944UW
1
FR-DE500-BA or FR-DE500-AA or FR-DE450-CA
V3.30 V1.00.07 BGO
73xx
RA310 RA450 RA7000 RA3000
RA3103 or RA4503 or RA7000 or RA3000
KZPSA2 or 2944UW
1
FR-DE500-BA or FR-DE500-AA or FR-DE450-CA
V1.10 AlphaBIOS V5.65
1. 2944UW and 2944W host adapters on:
• Intel-based DIGITAL Servers require the 1.25c version of the Adaptec driver (file name
internal name BW0045a PV0145a v1.25c, original date 5/1/97, using Explorer, the file size is 27 KB)
Note: Qui
reinstall the 1.25c driver from NT 4.0 SP3.
• Alpha-based DIGITAL Servers require the 2.11 s29 version of the Adaptec driver
download the 2.11 s29 version of the Adaptec driver, go to akin40.mro.dec.com and select Clusters, select Adaptec 2944 UW Driver v2.11 s29 (DIGITAL Alpha Servers).
2. KZPxA host adapters require the 1.41 version of the DCNT driver (DECKZPSX.SYS) that comes with DCNT.
3. Requires the HSZDISK 4.0 SCSI class driver from StorageWorks that comes with DIGITAL Server Cluster Kits. See
information on storage.
• The RA310 Cluster Kit (FR-CK310-RF) has been EOL.
• All systems contain both (E)ISA and PCI bus.
•
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Differences between DCNT and MSCS
Here’s a quick summary of the differences between DCNT and MSCS so that you can decide which
product best meets your customer’s needs.
Feature DCNT MSCS Cost $995 per server and $1990 per
cluster plus the cost of NT 4.0 Standard Edition for each server
Upgrade price for customers is $390
Low cost, high availability solution for a Windows NT client/server environment across LANs
Market segment Entry level , low to mid range
Great as a pilot to try clusters
on Windows NT
Architecture Proprietary Industry accepted standard Overall cluster experience Delivering clusters for the past
15 years
Windows NT cluster experience Delivering clusters on
Windows NT 18 months before MSCS with a total of 7,000 DCNT licenses
$4,000.00/server (includes NT)
High cost, high availability solution for a Windows NT client/server environment across LANs
Enterprise level, mid to high range
None
Delivering clusters on
Windows NT since November 1997
Client support Windows NT 4.x, 3.51
Windows for Workgroups 3.11 Windows 95
Runs on NTS 4.x Standard Edition Yes No Runs on NTS/E 4.x Enterprise Edition No Yes API to make applications cluster-aware
for failover support Generic application failover via
scripting
NTFS failover Yes Yes Failover of applications based on IP
address
File shares failover Yes Yes Microsoft SQL Server 6.5 failover Yes – Standard Edition Yes
No Yes for all BackOffice
Yes No, but can use API
Yes Yes
Windows NT 4.x
Windows 95
applications
19
Oracle failover Yes (7.x) – Workgroup and
Enterprise Editions
Lotus Notes Domino failover Yes - 4.6 Active/Active support
through partitioned Domino servers
Netscape SuiteSpot Web Server 3.0 failover
Microsoft Internet Information Server failover
Microsoft Exchange Server failover No Yes Manual failover for maintenance Yes Yes Failback capability to reconnect fixed
server that previously failed
Requires client software No, if accessing only socket-
IPX/SPX Yes No NETBEUI Yes No
Yes Yes
Yes (version 3.0) Yes (version 4.0)
Yes Yes, manual and failback to
based applications or NTFS file shares through TCP/IP on v1.1 SP1 clusters
Yes (8.x)
Yes
time of day
No
TCP/IP Yes Yes Server platforms DIGITAL Server families Multi-vendor; Self-
certification process
Extras Migration utility to go from
DCNT to MSCS
Why Buy Clusters from Compaq?
• DIGITAL, now Compaq, has been delivering cluster solutions for the past 15 years with over 75,000
clusters installed.
• Compaq has more experience with clustering and more certified professionals trained to support
Windows NT than any other vendor.
• Compaq can provide you with worldwide support and service.
• Compaq has the broadest, most scalable range of servers in the industry.
• Right now, if a 8-way Pentium Pro server does not provide you with sufficient headroom, there is only
one vendor that can provide you with additional headroom, and that’s Compaq with their 7300 series and their 8-way turbo laser Alpha-based servers.
• Compaq simply provides you with the broadest range of products, services, and solutions for
Windows NT clustering.
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