Horizontal Scaling:
- 1 agent per database
- Independent scaling
- No coordination needed

Capacity:
- 1 agent: 10K changes/sec
- 1,000 agents: 10M changes/sec
- Linear scaling

Partitioning Strategy:
- Partition by database
- 100 partitions
- Parallel processing
- Load balancing

Throughput:
- 100K changes/sec per partition
- 10M changes/sec total

Horizontal Scaling:
- Add nodes to cluster
- Distributed tables
- Parallel queries

Capacity:
- 1 node: 100K inserts/sec
- 10 nodes: 1M inserts/sec
- 3x replication

Hot Tier (30 days):
- ClickHouse on SSD
- Fast queries
- 5TB storage

Warm Tier (1 year):
- ClickHouse on HDD
- Slower queries
- 60TB storage

Cold Tier (7 years):
- S3 Glacier
- Archive only
- 100TB storage