Storage Class and Performance Specification

Last updated: 2021-06-02 16:31:53

CFS introduces various file system types. The following table describes the features, advantages, and use cases of each type.

Product Type Standard High-Performance
Storage Class Standard Standard Turbo High-Performance High-Performance Turbo
Positioning Cost-effective, suitable for most scenarios High OPS and high throughput, suitable for large and small files under high load High bandwidth, suitable for large files and high throughput scenarios High OPS and low latency, suitable for latency-sensitive businesses under high load
Scenario Small-scale enterprise file sharing, web services, data backup/archive, and log storage High-performance and large-scale web services, media, image rendering, AI reference, OLAP services, and high-performance computation High-performance and large-scale web services, media, image rendering, and AI inference High-performance and large-scale computation, AI training, databases, big data analysis, and OLAP services
Storage capacity 0−160 TiB 40 TiB−100 PiB 0−10 PiB 20 TiB−100 PiB
Bandwidth (MiB/s) Min [100 + Storage usage in GiB x 0.1,300] Min [Storage usage in GiB x 0.1,102,400] Min [200 + Storage usage in GiB x 0.2,10,240] Min [Storage usage in GiB x 0.2,102,400]
Latency 4K single-stream read/write: 3 ms/7 ms 4K single-stream read/write: 0.2 ms/3 ms 4K single-stream read/write: 1 ms/1.5 ms 4K single-stream read/write: 0.2 ms/1.5 ms
OPS Read/Write: 10k+/1k+ Read/Write (40T cluster): 150k/10k (linear growth) Read/Write: 10k+/1k+ Read/Write (20T cluster): 150k/10k (linear growth)
Cost 0.058 USD/GiB/month 0.09 USD/GiB/month 0.23 USD/GiB/month 0.15 USD/GiB/month
Supported protocol NFS/SMB POSIX/MPI NFS/SMB POSIX/MPI
Expansion Auto Manual Auto Manual
Supported OS Linux/Windows Linux Linux/Windows Linux
  • The table above shows the capabilities of the file system. To reach the performance upper threshold, you usually need to perform multi-threaded reads/writes using multiple compute nodes.
  • The High-Performance storage class is still in beta testing and thus is not available yet.