3.3 Disaster Recovery

What is a Disaster Recovery Plan (DRP)?

A detailed plan for resuming operations after a disaster.

What are ways of executing a DRP?

Backups, off-site data replication, cloud alternative, and remote sites.

What are 3rd party options for DRP?

Physical location and recovery services.

What is Recover Time Objective (RTO)?

How quickly we can get back up and running after an outage.

What is Recover Point Objective (RPO)?

How much time we lost when the outage occurs.

What is Mean Time to Repair (MTTR)?

Average time to fix the issue.

What is Mean Time Between Failures (MTBF)?

Predict the time between outages.

What is site resiliency?

When a disaster strikes, we move to a temporary location until the problem is addresses, then we move back.

What is cold site?

Empty building that has nothing in it where you can move your data and people there.

What is a hot site?

Replica of your data site, stocked with the hardware, applications, and data you have.

What is a warm site?

Between cold and hot, with some level of infrastructure being there.

What are tabletop exercises?

Sit at a table with big players and walk through what everyone would do if something were to go wrong.

What are validation tests?

Test yourself to see how the process would go and how you’d do.