ITIL release management strategies are part of what makes your system work. Adopting a change management process without implementing release management into the equation defeats the entire purpose.
ITIL Release Management addresses proactively planning and managing releases for being implemented successfully into production. It provides a platform to consider all technical and non-technical aspects of a release by considering how the changes will impact the current environment. And it also provides the opportunity to document and capture all testing and implementation procedures.
Most release management ideals include processes common to many high performing IT organizations. These processes address the early lifecycle of infrastructure before it is placed into production and confidence that the system is functioning as expected.
Unfortunately this is the last place most organizations invest in, but the benefits are realized almost immediately.
The Team
Create a Release Management team from the most senior IT operations staff and give them the directive to deliver proactive release processes. Their objectives should be working on developing stable software and integration releases that will be deployed into production. By being involved early in the life cycle they are able to resolve defects where the cost is lowest.
Planning and Designing
The primary goal is building the processes and mechanisms to deploy the most stable configurations into production. During the planning and designing phase, the team should work to minimize the number of unique configurations and increase the lifespan before it needs to be changed or replaced.
This also benefits the organization because it enables an automated process to rebuild, rather than repair, which takes less time and resources.
Building and Configuring Hardware and Software
The release team does not build systems, they engineer and document them. By following the documentation created during the design phase, junior staff members are able to replicate bare metal builds with minimal assistance from the senior staff. With the building and configuration being done by other resources, this frees them up to work on new projects.
Testing and Release
Once a build has been configured, the next step is to test it in a non-production environment. Ideally this would very closely match the production environment to catch any potential issues before it is released.
As before, by following the steps outlined by the release team, junior staff can be used for this step and only require other resources if an unexpected result occurs. Also, by keeping the infrastructure isolated from the live environment minimizes risks of outages or other unexpected failures on production systems.
Always have a rollback plan in place. Even if a release is tested in a non-production environment, something unexpected could go wrong when it is deployed. Without this in place you are creating an unnecessary risk.
By implementing Release Management processes into the organization, the goal is to deliver the highest return on investment by reducing complexity and creating an automated rebuild process to minimize the need for firefighting.
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