When the cutover changed.
I led planning, cutovers and health checks for a three-week Hyper-V to VMware move.
21 VMs
Five Hyper-V hosts to four VMware hosts, production and DR.
3.5 TB
Total server storage across five drives.
~6 hours on paper
The conversion locked the database at about 20%. Production stopped.
An uncertain release
Lose scan progress with no guarantee the database lock releases.
Reconcile later
New orders would need merging. The DBA identified a risk of missed orders.
Complete the migration.
With the site manager and DBA: adjust, continue, finish. About four hours saved.
- Next: rebuilt two smaller database servers rather than converting them.