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Modernise your IT Infrastructure in five steps - Gartner

08 Dec 17

IT infrastructure and operations (I&O) leaders frequently start their bimodal IT infrastructure modernisation efforts backwards, by spending on new — usually Mode 2 — technology and talent before properly assessing, rationalising and simplifying their existing assets and systems, which are often in Mode 1.

“In many cases, I&O leaders can simplify their infrastructure without significant additional capex or opex investment,” says Phil Dawson, Gartner research vice president.

“This creates a stronger platform to move forward and invest wisely to position IT at the heart of business growth.”

Through 2020, Gartner predicts that 80% of Mode 1 modernisation projects will fall short of cost savings targets due to a failure to simplify and address unnecessary complexity.

Moreover, the extent to which Mode 1 projects will effectively support new Mode 2 investments will often depend on how well the process of simplification and rationalisation has been carried out.

Dawson recommends I&O leaders follow five steps to achieve optimal outcomes with IT infrastructure modernisation:

Step 1: Reassign your inventory of servers to address random server proliferation

Organisations at this stage have a highly inefficient infrastructure marked by random server proliferation, where systems have been added in a siloed way to meet the ad hoc needs of business units or particular workloads.

I&O leaders should begin addressing this by taking a detailed inventory of assets.

Once complete, they have the necessary information to start a process of consolidation and rationalisation.

“Consolidation is a reduction in the number of physical servers, while rationalisation is the reduction of the variety of different server types. Both are important aspects of simplifying IT infrastructure, yet rationalisation is often overlooked even though most complex IT systems include underutilised or inappropriate systems,” says Dawson.

“Consolidating without rationalising simply perpetuates unnecessary functions in a less complex infrastructure,” he adds.

Step 2: Develop common management tools and processes

When unnecessary assets have been removed, it’s a good time to implement a common management of the entire IT infrastructure, including the software-defined network, compute infrastructure, and storage.

This should be straightforward and can enable the measurement of success of all subsequent steps.

Step 3: Reduce the number of common locations across an infrastructure

At this point, opportunities to reduce the number of physical locations in the IT infrastructure will emerge, which should reduce real-estate costs, as well as further simplify management and sourcing.

Often this will involve data centre relocation or re-examining provisions for lights out operations and remote office/branch office.

Step 4: Renovate infrastructure through workload consolidation and automation

This step can be complex and the overall goal is to further reduce physical assets by increasing the workload density and efficiency of each server.

Typically virtualisation is used to fit more workloads onto each physical asset and reduce the total cost of ownership of the IT infrastructure.

This is also a great time to identify workloads and processes that are good candidates for automation and further increase efficiency.

Step 5: Rationalise the variety and type of items within your infrastructure

Now the number of physical assets has been reduced, the next step is to rationalise the number and type of logical assets present within the infrastructure.

“Initially this step is concerned mainly with infrastructure standardisation toward commercial off-the-shelf infrastructure, typically achieved with software-defined implementations and virtualisation,” says Dawson.

“This is an ongoing process as new business demands are placed on IT infrastructure and old processes, and workloads become redundant.”

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