Business Continuity and Disaster Recovery

Types

1. Backup:
   • Purpose: Quick Recovery
   • Location: Closer to failure point
   • Frequency: Regular
   • Cost: Spend more on storage and speed
2. Archive
   • Purpose: Disaster Recovery
   • Location: Safe place far awsy
   • Frequency: Ocassional (once in a week/month)
   • Cost: Spend less on storage

Usecase

1. Cloud:

2. Hybrid:

Main Backup Sources

1. Hard disk
2. Databases/Application

Lab

1. Create a backup of Ec2 machine. steps:
   • Create a ec2 machine
   • Backup of Hardisk (Volume) is called as Snapshot
   • From snapshot create a volume
   • Copy snapshot to other region
   • Dont forget to delete ec2 machine, snapshots and volumes (To avoid billing)

Snapshot Way of Working