This guide provides an overview of the phased approach for large migrations, which consists of three phases: assess, mobilize, and migrate and modernize. The primary purpose of this guide is to describe the migrate part of the third phase, migrate and modernize, and its two stages, initialize and implement:
In stage 1, initialize, you prepare your platform and people for a large migration. You also define the standard operating procedures (or runbooks) for the project. The runbooks and automations simplify and accelerate implementation of the large migration activities in stage 2.
In stage 2, implement, you migrate servers at scale and closely manage and monitor the progress to implement continuous improvements.
