Product specifications
Updated at：2025-11-11
Cloud File System (CFS) is classified into two categories: performance-optimized CFS and capacity-optimized CFS. The table below highlights the features, performance metrics, and application scenarios of these two types. Use these parameters as a reference to select the suitable file storage class for your business needs.
| Item | Performance-optimized CFS | Capacity-optimized CFS |
|---|---|---|
| Capacity | 0~100PB | 0~100PB |
| Maximum IOPS | 300K | 15K |
| Maximum throughput | 40 GB/s (scales linearly with capacity) | 10 GB/s (scales linearly with capacity) |
| Throughput calculation formula | Throughput (MB/s) = Storage capacity (GB) × 0.6 + 600 | Throughput (MB/s) = Storage capacity (GB) × 0.15 + 150 |
| IOPS calculation formula | OPS = Storage capacity (GB) × 3 + 30K | 15K |
| Latency | Millisecond-level | Millisecond-level (around 10 ms) |
| Application scenarios | Designed for file-sharing storage services that require high throughput, elastic business scaling, and relatively high latency performance. It delivers excellent performance for workloads with frequent read/write operations and stringent system response requirements. | Perfect for compute-intensive services demanding large capacity and high throughput but without stringent latency requirements. It provides a cost-effective solution for most file-sharing services with less frequent read/write operations. |