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How did AlphaServer evolution shape enterprise computing? What are its key milestones?The HP AlphaServer, built on DEC's Alpha processor, primarily ran the VMS operating system, known for its security and stability. It became the go-to choice for government agencies like the MOD. Alpha servers could also run Tru64 UNIX, giving users flexibility. Navigate through the complete evolution of Digital Equipment Corporation's AlphaServer family, from entry-level workgroup systems to enterprise powerhouses.
Deep-dive into nine major AlphaServer models, including the compact AlphaServer 400 and AlphaServer 800, commonly used by small businesses. You will also explore the versatile mid-range AlphaServer 1000, AlphaServer 1200, AlphaServer 2000, and AlphaServer 2100 series used for departmental computing, and the high-performance AlphaServer 4000 and AlphaServer 4100, designed specifically for mission-critical enterprise workloads. This guide also examines the AlphaServer ES45, one of the final and most advanced systems in the Alpha lineup.
Through detailed comparative analysis, you'll understand the key differences, capabilities, and use cases for each model. HP later acquired Alpha servers through its purchase of Compaq, which had earlier taken over DEC (Digital Equipment Corporation) in the 1990s.
ArticlesHP acquired Alpha servers through its purchase of Compaq, which had earlier taken over DEC (Digital Equipment Corporation) in the 1990s.
The HP Alpha Server, built on DEC’s Alpha processor, primarily ran the VMS operating system, known for its security and stability. It became the go-to choice for government agencies like the MOD. Alpha servers could also run Tru64 UNIX, giving users flexibility.
Initially, HP continued to support Alpha hardware and OpenVMS beyond 2010. But eventually, they shifted to the Integrity line, powered by Intel’s Itanium processors, and optimized OpenVMS for the new architecture.
From DEC AlphaServer to HP AlphaServer, several models were released under the AlphaServer brand during its evolution. In this article, we will explore each AlphaServer model in detail to give you a clear understanding of its capabilities.
Explore how CHARON-AXP virualizes Alpha on Windows or Linux, replacing aging DEC hardware.
But before we dive in, let’s take a quick look at the comparison table.
| Model | Processor | Memory | Expansion Slots | Operating Systems | Industries |
|---|---|---|---|---|---|
| AlphaServer 400 | 166 MHz EV4 | 192 MB | 2 PCI, 3 ISA | OpenVMS, Tru64 UNIX, Linux, FreeBSD | Small businesses, research labs |
| AlphaServer 800 | EV5 | ECC memory | 2 PCI, hotswap disk drives, RMC | OpenVMS 6.21h3, Tru64 UNIX 3.2C, Windows NT | SMBs, education, IT infrastructure |
| AlphaServer 1000 | 200 MHz | Up to 512 MB | 2 PCI, 7 EISA | OpenVMS | Finance, insurance, SMEs |
| AlphaServer 1200 | Based on AlphaServer 4000 design | Up to 4GB | 5 PCI, 1 PCI/EISA | Windows NT, OpenVMS, Digital UNIX | Healthcare, retail, large businesses |
| AlphaServer 2000 | EV4/EV45/EV5 (200–375 MHz) | 640 MB–1 GB | 3 PCI, 7 EISA | OpenVMS | Telecom, manufacturing, government |
| AlphaServer 2100 | Alpha 64-bit (200–375 MHz) | 1–2 GB | 3 PCI, 8 EISA | OpenVMS, Tru64 UNIX, Windows NT, Linux, FreeBSD | High-tech, scientific research, engineering |
| AlphaServer 4000 | 21164 (300–600 MHz) | Up to 4GB | SMP, multi-cache levels | OpenVMS, Tru64 UNIX | Aerospace, energy, large-scale enterprises |
| AlphaServer 4100 | Up to 4 Processors (5/300, 5/400, 5/466, 5/533 and 5/600 MHz speeds) | 32 MB to 8 GB | 5 PCI, 3 PCI/EISA | OpenVMS, Tru64 UNIX | High-performance database servers, business application servers, LAN consolidation, and communication applications |
| AlphaServer ES45 | 1-4 CPUs EV68CB, 1000MHz or 1250MHz 8MB Cache | Model 1: Up to 16GB RAM, Models 2 and 3: Up | 6 to 10 PCI-X slots | OpenVMS (starting from version 7.3-1) | Business, technical, and scientific applications |
The AlphaServer 400 was launched by Digital Equipment Corporation (DEC), and later acquired by Compaq and HP. They were high-end servers designed for DEC Alpha microprocessor architecture offering unparalleled computing power. It was considered a suitable option for the office environment due to its featured single Alpha processor and a compact tower form factor. AlphaServer 400 offers enterprise-grade capabilities in a smaller package and serves as an affordable entry point into the Alpha ecosystem that was often used for file serving, light database work, and application development.
Did you know?
The AlphaServer 400 competed with entry-level RISC servers from HP and Sun Microsystems during the mid-1990s.
Offering larger-server performance was something that people still remember about AlphaServer 800. Launched in October 1997, it was equipped with second generation Alpha processor, known as the EV5.
AlphaServer 800 served as a compact, cost-effective entry point into the Alpha ecosystem. It was built around a single Alpha 21164 processor and offered enterprise-class Unix/VMS capabilities. The AlphaServer 800 was considered ideal for small businesses that looked for reliable file servers, departmental application hosts, or development platforms.
The AlphaServer 800 provided excellent value and proved popular with organizations that transitioned from its predecessor VAX systems or were seeking affordable RISC computing.
AlphaServer 1000 system is a low-cost, single processor server, based on PCI/EISA. It was part of DEC’s strategy to deliver robust server solutions.
It was designed to support OpenVMS which was a key OS in high-end computing.
(SPECint92 and SPECfp92 are performance benchmark scores set by Performance Evaluation Corporation (SPEC) to gauge the computing power of the processors.)
The AlphaServer 1200 did replace the AlphaServer 1000A. It has the same enclosure as the 1000A, but its logic is based on the AlphaServer 4000 design.
The AlphaServer 1200 brought Alpha computing to the datacenter in a professional rackmount package. It was designed for high-density server deployments. It offers enterprise-grade features like hot-swappable drives, redundant power supplies, and efficient cooling that elevated the Alpha performance.
The Alpha 1200 is available in various configurations with Alpha 21164 or later 21264 processors. This AlphaServer 1200 series scaled from a single CPU to multiple CPUs.
The AlphaServer 1200 supports multiple operating systems like Windows NT, OpenVMS, and Digital UNIX (Ultrix). This flexibility allows it to handle everything from large business data to specialized computing tasks.
Did you know that AlphaServer 2000 was one of the first AlphaServers featuring a PCI bus? The inclusion improved data transfer rates and enabled greater flexibility in hardware expansion.
Similar to the previous server, AlphaServer 2100 was among the first AlphaServers to have PCI bus. It was launched in 1994 and was initially sold as the Digital 2100 before the AlphaServer brand was established.
Launched in 1996, the AlphaServer 4000 was DEC’s first venture into the world of 64-bit Alpha architecture. This new architecture not only replaced the previous 32-bit VAX systems but also improved speed and power.
It was a mid-range server designed for high-performance computing, supporting multiple processors.
The AlphaServer ES45 was launched in 2002 with the aim of catering to applications in business, technical, scientific and others.
DEC AlphaServers introduced us to the amazing advancement of computers.
In 1995, the AlphaServer 400 was a new architecture with a PCI bus and native (64-bit) support. It marked the end of 32-bit systems and established new performance standards.
Further enhancing efficiency, the AlphaServer 800 and AlphaServer 1000 joined the line. They added EV5 processors, hot-swap drives, and ECC memory to make the server reliable and effective.
Its scalability would build upon the success of AlphaServer 1200 and AlphaServer 2000. They were multicore with large storage. Therefore, they could accomplish more complicated and multitasking jobs.
Finally, came the AlphaServer 2100 and Alphaserver 4000. These servers introduced multi-CPU setups and symmetric multiprocessing (SMP) support. They were best used for high-performance environments, thus becoming very popular.
HP launched extensive Alpha user education and a plan to move customers up to the HP Integrity platform. But there are many niche businesses that have never been ported to newer versions. It means these businesses are still dependent on Alpha hardware to run their business applications.
In the past, Alpha HP Servers were highly reliable for handling critical workloads. However, as time has passed, the hardware has become decades old and is more prone to downtime. Thus, businesses that still rely on AlphaServers are facing increasing costs and efforts to maintain these aging systems.
These challenges make it extremely difficult for enterprises to compete with modern businesses. Enter Stromasys, which allows businesses to continue operating a legacy application without the ancient hardware.
By leveraging Charon-AXP emulator, businesses can move their AlphaServer environments to modern hardware or the cloud without sacrificing their existing applications. It means enterprises can continue running essential OpenVMS and Tru64 UNIX applications.
This migration improves performance, cuts costs, and extends the life of essential systems without the hassle of major disruptions or downtime.
Wheeler Manufacturing were running their critical applications on the outdated AlphaServer system. They face critical situation in 2014 when due to a drive failure during business hours resulted in a full day of production loss. Also, the 3-4 days wait for HP support led to productivity loss. They have been operating on the AlphaServer for more than 15 years and were comfortable using it, but hardware failures occurred every year or two. This created unacceptable downtime risks and the business-critical DEC applications (evolving from PDP to MicroVAX to VAX to Alpha) that were highly customized for their manufacturing processes. They wanted to preserve these applications while eliminating the vulnerability of aging hardware.
When Wheeler Manufacturing contacted Pyramid Technology Services to purchase a spare drive, Pyramid identified the problem and offered a better solution. They suggested virtualizing the AlphaServer using Stromasys Charon-AXP. This solution allowed Wheeler to migrate their classic Alpha system to modern hardware while preserving all existing applications and configurations. Charon-AXP eliminates the aging hardware dependency while removing geographic support limitations and offers the reliability of current technology. All this while maintaining the business-critical software without any modifications.
Wheeler Manufacturing successfully transitioned from vulnerable legacy hardware to a virtualized environment. They reduced risk and improved performance. The company eliminated any challenges regarding outdated hardware failures along with support issues. They gained peace of mind knowing their manufacturing operations would continue uninterrupted. By preserving their proven applications on modern infrastructure, Wheeler achieved the best of both worlds, i.e., operational continuity with enhanced reliability.
“We wanted to continue using these applications, but we needed to find a way to reduce risk and eliminate unwanted downtime.”
— Tony Waller, CIO, Wheeler Manufacturing
AlphaServers were well known for their high performance. It used DEC’s 64-bit Alpha microprocessor.
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