Cloud Backup vs. Local Backup: Which Is Better for Business?
For most businesses, the answer is both. The 3-2-1 backup rule recommends 3 copies of data, on 2 different media types, with 1 copy off-site. Cloud backup provides the off-site copy with minimal management overhead.
Written by Alex Dayan, Founder of King of IT | Toronto Managed IT Services
1The 3-2-1 Backup Rule
The Gold Standard for Data Protection
The 3-2-1 rule has been industry best practice for decades:
3 Copies of Your Data
Original (production data)
Backup copy 1 (local)
Backup copy 2 (off-site)
2 Different Media Types
Example: server hard drives + external backup appliance
Protects against media-specific failures
1 Copy Off-Site
Protects against fire, flood, theft, ransomware
This is where cloud backup shines
Updated for 2024: 3-2-1-1-0
Modern best practice adds:
**1** copy that's immutable (can't be changed or deleted)
**0** errors verified through regular restore testing
2Local Backup: Pros and Cons
Advantages of Local Backup
Fast Recovery
Restoring from local backup is much faster than downloading from cloud
Recover a full server in hours, not days
Critical for large data sets (1TB+)
Lower Ongoing Costs
No per-GB cloud storage fees
One-time hardware cost vs. monthly subscription
Full Control
Data stays on your premises
No dependency on internet connectivity
No third-party access to your data
Disadvantages of Local Backup
Vulnerable to Local Disasters
Fire, flood, or theft can destroy backups along with production data
Ransomware can encrypt local backups if accessible on the network
Hardware Maintenance
Backup hardware fails and needs replacement
Requires physical management (tape rotation, etc.)
Capacity Planning
Need to predict and purchase storage capacity
Upgrading can be expensive
3Cloud Backup: Pros and Cons
Advantages of Cloud Backup
Off-Site by Default
Automatic geographic separation from production data
Protected from local disasters
Immutable Options
Cloud providers offer write-once storage
Ransomware can't encrypt or delete cloud backups
Scalable
Pay for what you use
No capacity planning or hardware purchases
Automated
Set it and forget it (mostly)
Built-in monitoring and alerting
Disadvantages of Cloud Backup
Recovery Time
Downloading large amounts of data takes time
A 1TB restore over 100Mbps = ~22 hours
Some providers offer physical data shipment for large restores
Ongoing Costs
Per-GB storage fees add up for large data sets
Egress fees (costs to download your data) can surprise you
Internet Dependency
Backup and restore require reliable internet
Initial backup of large data sets can be slow
Third-Party Dependency
Your data is in someone else's data center
Provider outages affect your recovery capability
4Our Recommendation
Best Practice: Hybrid Approach
For most Toronto businesses, we recommend:
Local Backup Appliance
Fast recovery for common issues (accidental deletion, hardware failure)
Keeps recent backups (7-30 days) on-site
Provides disk-based backup for quick restores
Cloud Backup
Immutable off-site copy for disaster recovery
Longer retention (90 days to years)
Ransomware protection
What This Looks Like
| Scenario | Recovery Source | Recovery Time | |----------|-----------------|---------------| | Accidental file deletion | Local | Minutes | | Server hardware failure | Local | Hours | | Ransomware encryption | Cloud (immutable) | Hours to 1 day | | Office fire/flood | Cloud | 1-3 days |
Recommended Cloud Backup Providers
Microsoft Azure Backup
Veeam Cloud Connect
Datto
Acronis Cloud
Backblaze B2
Typical Costs
Local appliance: $200-$600/month (depends on capacity)
Cloud backup: $15-$40/TB/month
Combined solution for 50-user company: $400-$800/month total