Episode 10 of 10
Recap: one server down, the work goes on
Failover keeps you running when a server or disk fails; a tested backup brings back what is gone.
Check yourself
What does failover protect you against?
Redundancy protects against broken equipment, not against human mistakes. Those are copied to both servers, so you still need a tested backup.
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06 · Basic
Secure and resilient
Back-ups you can restore, access per person, NIS2 and ISO 27001 without panic.
After this series you can:
- You have a restore tested and record, per system, how much loss and downtime you accept.
- You give each role only the access it needs, and have someone test where an attacker gets in.
- You check whether NIS2 applies to you and record who does what in an outage or incident.