Ask business executives what tools they are focused on and eight out of 10 times they'll say server optimization. It is little wonder why. Most servers are grossly underutilized, processing at a fraction of their potential capacity, while still eating up a nice chunk of your IT budget. By optimizing those underachieving servers, you can harness that capacity more effectively either to increase the business return on your IT infrastructure or reduce the investment and expense required to maintain it.
Sounds good so far, but unfortunately server optimization is not as simple as putting more applications and storage on each server. In fact, server optimization is a blanket term addressing four approaches to IT infrastructure consolidation. Although the optimization approaches do get more complex as you move from top to bottom, the financial and operational rewards also increase. The four approaches are:
- Logical Consolidation: This refers to an IT department that implements a unified management system across its servers. Although logical consolidation does not relocate or consolidate any servers, it does simplify management and eases the IT workload.
- Centralized Consolidation: This involves moving servers to one or two locations. Rather than maintaining servers at various branch offices, everything is housed at centralized locations -- at the company headquarters or data center, for example.
- Physical Consolidation: With physical consolidation, an organization reduces the total number of servers by merging the workload onto fewer, more powerful servers.
- Operational Consolidation: Also called application consolidation, operational consolidation is the most complex. Unlike physical consolidation, an operational consolidation runs multiple platforms and diverse applications on a single server (or cluster). This technique uses partitioning and virtualization to run many virtual servers on a single machine.
- Plan: Begin by taking an environmental profile, which includes the number of servers and applications you have, the amount of disk space and your current utilization rate. Use this data to outline a plan of action and to determine the potential financial and operational savings associated with optimization.
- Phase: As with your other IT initiatives, structure the plan in phases, so the implementation affects discrete parts of the infrastructure one at a time. Phasing in your implementation not only minimizes the risk to your infrastructure, it may also help you to fund one optimization project with the savings from a previous project, reducing the upfront cost of upgrading your infrastructure.
- Implement: Once you have a phased plan of action with desired performance outcomes, focus on configuration and implementation. Unfortunately, every market and business model has an IT infrastructure to support it, so single-brand, pre-fabricated optimization solutions will probably not have the customization required to fit your organization. Work with an IT provider who can deliver a wide range of optimization solutions from multiple vendors, and do not hesitate to look at multiple options before committing to one.
- Manage and assess: After each phase of implementation, schedule time to manage and assess the new infrastructure to identify any problems and to measure the financial and operational gains. This will help you avoid any major gaps created during implementation and provide valuable metrics for justifying the continued investment in optimization.
- Evolve: Although server optimization technologies are now fairly mature (many in their third or fourth generations), vendors will continue to make strides in both software and hardware. Periodically review your utilization and capacity figures to assess whether your organization could benefit from either the new technologies or the next level of server optimization.
Ultimately, server optimization is both a technology and a business decision. Although the benefits to IT are substantial, our research shows that 66% of IT managers consolidate to reduce costs. As business leaders are always looking for ways to improve shareholder value, investing your time and effort in an optimization initiative is a proactive way of highlighting how IT contributes to your organization's success.