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Failure Scenarios
- hard drive failsfailures
- data Center center is physically destroyed
- data center connectivity is lost
- database is corruptednetwork connectivity is lost
Risks
- DOS attacks
- SQL injection attacks
- account and password security
So what? Don't forget about EAS upgrades, PostgreSQL/PostGIS upgrades, Django upgrades, etc., major versions and patches.
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- virus scans
Environments
Changes of any sort are first tested in the development environment.
If the tests pass, we apply the changes to QA where business users conduct testing.
Only after the business users approve the changes do we release any changes to PROD.
This includes everything from OS upgrades through to our own application code, minor and major
what is our Recovery Time Objective? (how soon to be back up and running)
http://en.wikipedia.org/wiki/Recovery_Time_Objective
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