According to an August 2017 study conducted by Quark + Lepton, an independent research and management consulting firm, IBM i on Power Systems servers provides a substantial TCO (total cost of ownership) advantage over equivalent Windows or Linux platforms.

For the study, which was funded by IBM, Quark + Lepton used three different server/database configurations: an IBM Power Systems server running IBM i Operating System V7.3 with DB2, an x86 server running Windows Server 2016 and SQL Server 2016 and an x86 with Linux and Oracle Database 12c. TCO estimates were based on the costs of hardware acquisition and maintenance, OS and database licenses and support, system and database admin personnel salaries and facilities expenses. Several different use cases were analyzed.

A Big TCO Advantage

The results of the study showed the projected three-year TCO for the three setups to be as follows:

  • Power Systems/IBM i/DB2 – $430,815
  • x86/Windows/SQL Server – $1.18 million
  • x86/Linux/Oracle – $1.27 million

The study concludes that “costs for use of IBM i on Power Systems are lower across the board”. For example, initial hardware and software acquisition costs for the IBM i systems averaged 8% less than the Windows systems, and fully 24 % less than the Linux systems.

Perhaps the most surprising factor in the stark differential between the IBM i solution and the others was in the cost of required support staff. Based on a 300-user scenario, IBM i required 0.3 FTE (full time equivalent) support personnel, compared to 0.5 FTE for the Windows setup and 0.55 FTE for Linux.

But the biggest differential in staff costs arose from the fact that IBM i admins could handle both the OS and the database. Those double-duty IBM i personnel commanded salaries of about $86,000, while Windows and Linux sysadmins were paid $71,564 and $86,843 respectively. However, the Windows and Linux setups also required the support of separate database admins, adding $100,699 (SQL Server) and $103,283 (Oracle) to the personnel costs for those solutions.

Simplicity

In its conclusion the report notes that while the industry is trending toward ever-greater complexity, the simplicity of IBM i makes it by far the most cost-effective platform on which to base an organization’s IT infrastructure.

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