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37 · A migration off a server nobody understood
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Hosting and Infrastructure · Case study
A migration off a server nobody understood
[Client name] · Long-running business
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Method
How it ran
01
Discover
Work out what is actually running before moving anything.
02
Rebuild
New environment from configuration, not from a disk image.
03
Verify
A backup is a rumour until you have restored it.
04
Document
A runbook, so the next person is not in the same position.
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The work
A look at it
In progress
04 / 06
The number that mattered
Restore
Tested on a schedule. A backup nobody has restored is not a backup.
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Method
Four moves
01
Discover
Work out what is actually running before moving anything.
02
Rebuild
New environment from configuration, not from a disk image.
03
Verify
A backup is a rumour until you have restored it.
04
Document
A runbook, so the next person is not in the same position.
06 / 06
Your turn
Need hosting and infrastructure that holds up?
The part nobody notices until it stops.
webxlr8.com