Business Continuity Planning

BCP development, disaster recovery, backup strategies, and resilience.

Overview

BCP ensures critical functions continue during disruptions.

BCP Framework

┌─────────────────────────────────────┐
│         Business Impact Analysis    │
├─────────────────────────────────────┤
│         Recovery Strategies         │
├─────────────────────────────────────┤
│         Plan Development            │
├─────────────────────────────────────┤
│         Testing & Maintenance       │
└─────────────────────────────────────┘

Business Impact Analysis

Recovery Metrics

• RTO (Recovery Time Objective) — Maximum downtime
• RPO (Recovery Point Objective) — Maximum data loss
• MTD (Maximum Tolerable Downtime) — Absolute limit

Backup Strategies

# 3-2-1 Rule
# 3 copies of data
# 2 different media types
# 1 offsite backup

# Incremental backup
rsync -avz --backup /source/ /backup/

# Full backup
tar -czf backup_$(date +%Y%m%d).tar.gz /source/

Disaster Recovery Sites

| | Warm site | Hours | $$$ | | Cold site | Days | $ |

DR Plan Template

# Disaster Recovery Plan

## 1. Activation Criteria
- Natural disaster
- Cyber attack
- Infrastructure failure

## 2. Roles & Responsibilities
- DR Coordinator: Overall coordination
- Technical Lead: System recovery
- Communications: Stakeholder updates

## 3. Recovery Procedures
### Priority 1: Critical Systems
1. Activate backup site
2. Restore databases
3. Verify data integrity

### Priority 2: Important Systems
1. Restore file servers
2. Enable email
3. Test functionality

## 4. Communication Plan
- Internal notifications
- Customer updates
- Vendor coordination

Testing Types

Practice

Develop a DR plan for a web application with RPO/RTO requirements.