AWS Certified SysOps Administrator - Associate (CSOA) Quick Reference Guide: Cheat Sheet by IP Specialist

Author:IP Specialist [Specialist, IP]
Language: eng
Format: epub
Published: 2018-07-30T23:00:00+00:00

Chapter 5: Data Management

Disaster Recovery

Disaster recovery (DR) is about preparing for and recovering from a disaster. A disaster is an event that has a negative impact on a company’s business continuity or finances. DR includes hardware or software failure, a network outage, a power outage, physical damage to a building like fire or flooding, human error, or some other significant event.

Traditional Approaches to DR

Facilities to house the infrastructure, including power and cooling.

Security to ensure the physical protection of assets.

Suitable capacity to scale the environment.

Support for repairing, replacing, and refreshing the infrastructure.

Contractual agreements with an Internet service provider (ISP) to provide Internet connectivity that can sustain bandwidth utilisation for the environment under a full load.

Network infrastructure such as firewalls, routers, switches, and load balancers.

Enough server capacity to run all mission-critical services, including storage appliances for the supporting data, and servers to run applications and backend services such as user authentication, Domain Name System (DNS),

Dynamic Host Configuration Protocol (DHCP), monitoring, and alerting.

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