Migrating 100+ servers taught me that proper sequencing is more important than speed.

Assume a large server migration as a throughput problem: how fast can we move things.

That is an incorrect frame. On a project to migrate 100+ servers from VMware into Azure using Azure Migrate, the real work was in managing operations effectively and sequentially. Each system depended on one another – on other systems, network configurations or even identity requirements – such that any disruption could lead to cascading issues across systems that weren’t supposed to notice anything had changed at all.

Approach that worked: move one system at a time, test, validate and deploy; this may seem slow in the short term but is far faster than discovering broken dependencies three systems down after you have already moved forward.

At scale, sequencing is a necessity; ultimately it produces speed.

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