Big Bang or Phased migration approach

[Axel]

Hi community, 

planning upgrade to SaaS, i'm reading this Doc page: https://docs.dynatrace.com/managed/shortlink/up-plan-upgrade#estimate-the-effort-and-select-the-righ...

So, i can choose "Big Bang approach" or "Phased approach" and there are some advantages/disadvantages described. Someone can integrate other advantages/disadvantages, or points? 

[Radoslaw_Szulgo · Accepted solution]

Docs have been updated:

Big Bang approach

The Big Bang approach offers a comprehensive migration in a single instance. This strategy is ideal for organizations aiming for a quick and decisive transition.

Advantages:

• A highly connected and interdependent monitoring setup is maintained
• Everything is moved at once with minimal risk of monitoring downtime
• It is a time and cost-efficient upgrade process

Disadvantages:

• There is a high coordination and communication effort
• We recommend tests in smaller sandbox or pre-production environments

Phased approach

The Phased approach involves a gradual transition, allowing you to migrate specific components or user groups over time. It provides flexibility and minimizes potential disruptions to your operations.

Advantages:

• Siloed infrastructure and organizational setups can be migrated one-by-one.
• Trial and error migrations with quick feedback and learning on how to setup new SaaS tenant
• No downtime due to the temporary hybrid setup

Disadvantages:

• Temporary hybrid model can result in a disconnect of Full-Stack Monitoring
• Extended upgrade timeline and higher costs due to longer periods of duplicated deployments (hardware & cloud)
• Dynatrace web UI differences between Dynatrace Managed and Dynatrace SaaS