TCO for Application Servers: Comparing Linux with Windows and ...

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Key Take Away and Actions Qualitative Results IT executives should consider specialization of their Linux administrators' roles, as this effort has proven effective at reducing management costs on other platforms, and could yield further savings for Linux environments. Most study participants felt that the TCO savings realized were sufficient to justify deploying Linux in production. However, when Linux and other technologies are used to enable strategic architectural changes, such as server consolidation, vertical scaling, administration process streamlining, and sounder infrastructure engineering, additional benefits may be realized. Participants shared significant interest in looking beyond a purely TCO-oriented view to the longterm benefits Linux could yield. Some of the benefits mentioned include: • Extensive hardware platform support – Linux may be deployed on a variety of hardware architectures without significantly changing management processes. • ISV Support – Linux enjoys broad and growing ISV support. In conjunction with its extensive hardware platform support, in many cases this has yielded a greater number of supported platform combinations, allowing customers to choose the most appropriate option to meet each workload requirement. • Security – Participants reported that it was easier to lock down a Linux system and deploy patches, and that patch deployments produced minimal downtime. These factors lead to lower security management overhead and reduced system downtime. • Skill set transfer – Because Linux is managed similarly to many other Unix platforms, it is both an ideal counterpart to those products (allowing administrators to manage both Linux and other Unix systems effectively) and an ideal replacement for them. Moving to fewer operating systems ultimately reduces support costs and improves system to administrator ratios. • Vendor diversity – Customers may choose the Linux distribution and support provider that is best able to meet their needs. This increases the customer's negotiating power, and the variety of licensing and support options available allow the customer to choose the most appropriate options for their companies. RFG attempted to collect data regarding Solaris on Opteron, but this product combination in production environments is still relatively new, and RFG did not encounter it during the course of the study. Based on early customer feedback, RFG believes the primary selection criteria for this option should be based on strategic considerations rather than TCO. IT executives should evaluate Sun's ability to build an x86 ecosystem, including ISV support, and whether this combination provides business value advantages over other platforms when evaluating Solaris on Opteron. Conclusions Linux provides a lower overall TCO compared to Windows or Solaris for J2EE application server environments; RFG found Linux to be 40 percent less expensive than similarly configured Windows on x86 systems, and 54 percent less expensive than Solaris on SPARC. Linux competitors have brought costs down over the last few years. However, deltas in support and management costs, and improvements in how customers manage their Linux systems, will likely allow Linux to retain its position as the lowest-cost option. IT executives faced with shrinking Copyright © 2005 Robert Frances Group, Inc. All rights reserved. 8
udgets and increasing workloads should thus evaluate Linux as an alternative to other operating system choices. Linux also provides a number of strategic benefits not available in Solaris or Windows. It is available for a broad range of hardware platforms, and is cost-competitive when scaled well both horizontally and vertically. Further, it enjoys solid ISV support, and is available from a number of vendors in several licensing and support models. Linux is thus a flexible platform for enterprise application workloads, and IT executives should explore these aspects to maximize the long-term value of their Linux deployments. Ultimately, RFG believes IT departments must be extremely agile and flexible in order to successfully meet current and future service demands. Data collected in this TCO study shows Linux is not only less expensive, but also provides a range of monetary and strategic benefits that help meet these needs. A move to Linux is thus well-aligned with these goals, and RFG believes IT executives should seriously evaluate Linux for their companies' application server workloads. The work involved in performing this study was commissioned by IBM Corp. However, the views expressed herein are those of Robert Frances Group, and do not necessarily reflect or represent those of IBM. Copyright © 2005 Robert Frances Group, Inc. All rights reserved. 9
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