Comparing HP-UX 11i V3 and Linux For Hosting Critical Workloads

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Executive Summary

Some users in large organizations, in which multiple versions of UNIX are deployed, have set a goal of consolidating their UNIX systems over time on Linux distributions. Indeed, the capabilities of the Linux operating system have matured sufficiently for it to take on more demanding workloads than ever before. In critical areas such as SMP scalability, Linux distributions targeting enterprise requirements have significantly narrowed the gap with UNIX systems.

However, in terms of many other functional requirements that are considered critical in modern enterprise IT environments, HP-UX continues to offer significant advantages over the leading Linux distributions, particularly in areas related to reliability and security. HP was one of the first major vendors to envision the market potential of an enriched and robust UNIX operating system, and to adopt it as its strategic business platform over 25 years ago. Since then, HP has continuously refined the capabilities of HP-UX, culminating with the release of HP-UX 11i v3. HP's control of both HP-UX and Integrity hardware allows it to optimize and support the entire system stack on an end-to-end basis, while Linux is largely developed independently of the systems on which it is deployed. The ability to deploy the HP-UX OS as a fully integrated platform produces a variety of benefits related to scalability and availability.

At the same time, HP-UX stands out for its ability to be deployed easily alongside volume-oriented operating systems such as Windows and Linux, using HP's market-leading blade platform. The balanced range of HP-UX functions and superior integration, plus its flexibility to be deployed in much of the same industry-standard infrastructures as Linux, continue to give HP-UX a fundamental advantage over Linux for hosting the most critical workloads in typical enterprise environments.

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