CIS 527
Lab 7 - Backups
Backup Strategy
- Who Has the Data
- What Data to Store
- When to Backup
- Where to Store Backups
- Why Data Loss Occurs
- How to Create Backups
Who
- Systems
- Servers
- Network Devices
- Credentials
- Security Keys
- Ownership
- Legal Issues
What
- Accounting Data
- Human Resources
- Web Assets
- User Data & Files
- Network Configuration
- Filesystems
- Metadata
When
- Yearly
- Monthly
- Weekly
- Daily
- Hourly
- Instantly
RPO vs. RTO
- Recovery Point Objective: How Much Data Might be Lost
- Recovery Point Actual: How Much Data Was Lost
- Recovery Time Objective: How Much Downtime Expected After Error
- Recovery Time Actual: How Long it Actually Took
Image Source: Recovery Time Objective
Where
- Hard Disk Drive (HDD)
- Solid State Drive (SSD)
- Optical (CD/DVD)
- Magnetic Tape
- Cloud Storage
- Physical Storage
Where
- Online
- Near-Line
- Offline
- Offsite
- Backup Site
Optimization
- Compression
- Deduplication
- Encryption
- Staging
- Refactoring
Why
- Accidental Deletion
- Software Failures
- Hardware Failures
- Data Corruption
- Malicious Intent
- Natural Disasters
How
- Unstructured
- Full
- Incremental
- Differential
- Reverse Delta
- Continuous
Image Source: Nakivo
Image Source: Nakivo
Image Source: Nakivo
Image Source: Nakivo
Other Concerns
- Data Security
- Validation
- Backup Window
- Performance Impact
- Costs & Resources
- Storage Capacity
- Distributed Availability
High Availability
Image Source: DigitalOcean