Durability guarantees
| Configuration | Durability | Annual Expected Loss |
|---|---|---|
| Single region only | Standard | Variable |
| With additional replication region(s) | 99.999999999% (eleven nines) | 0.000000001% of objects |
Eleven nines durability (99.999999999%) corresponds to an average annual expected loss of 0.000000001% of objects.
Storage configuration
RAID 6 configuration
Each datacenter stores a single replica of your data on RAID 6 storage configuration:- Protects against simultaneous failure of up to two drives
- Provides redundancy at the hardware level
- Automatic rebuild when drives fail
- No data loss during drive failures
Multi-region redundancy
When you enable replication regions:- Data is automatically replicated across all selected regions
- Each region stores a complete copy of your data
- If data is lost in one datacenter, it is automatically re-streamed from another region
- Automatic failover ensures continuous availability
Disaster recovery
Bunny Storage provides excellent durability even in extreme scenarios:Local disaster recovery
If a datacenter is damaged by natural disasters (earthquake, fire, flood, etc.):- Automatic failover to the next closest region
- No data loss when using multiple replication regions
- Continuous availability for your users
- Transparent recovery with no action required
Data loss protection
If data is lost in one datacenter:- Data is automatically re-streamed from a different region
- New servers in the affected datacenter receive fresh copies
- No manual intervention required
- Replication continues in the background
High availability
Your data remains accessible even during regional issues:- Multiple regions provide redundancy
- Automatic routing to healthy regions
- No single point of failure
- 99.99% availability SLA
Recommended configuration
For optimal durability and reliability:Minimum setup
- Enable at least one additional replication region for eleven nines durability
- Choose a region geographically distant from your primary region
High availability setup
- Enable multiple replication regions across different continents
- Provides protection against regional disasters
- Ensures lowest latency for global users
By storage tier
Standard tier (HDD):- Enable geographically diverse regions (e.g., US, Europe, Asia)
- Up to 9 regions available
- Enable as many regions as possible for lowest latency
- Up to 15 regions available