Updated on 2025-11-03 GMT+08:00

File System Types

SFS provides SFS Turbo file systems, which are further classified into Standard, Standard-Enhanced, Performance, and Performance-Enhanced.

This section describes the features, highlights, and application scenarios of different types of SFS Turbo file systems.

The following table describes the features, advantages, and application scenarios of these file system types.

Table 1 Comparison of file system types

File System Type

Storage Class

Features

Highlights

Application Scenarios

SFS Turbo

Standard

  • Maximum bandwidth: 150 MB/s; maximum IOPS: 5,000
  • Latency: 2 to 5 ms; maximum capacity: 32 TB
  • Suitable for services with massive small files and services that require low latency.

Low latency and tenant exclusive

Code storage, file sharing, enterprise OA, and log storage

Standard-Enhanced

  • Maximum bandwidth: 1 GB/s; maximum IOPS: 15,000
  • Latency: 2 to 5 ms; maximum capacity: 320 TB
  • Enhanced bandwidth, IOPS, and capacity

Low latency, high bandwidth, and tenant exclusive

Code storage, file sharing, enterprise OA, and log storage

Performance

  • Maximum bandwidth: 350 MB/s; maximum IOPS: 20,000
  • Latency: 1 to 3 ms; maximum capacity: 32 TB
  • Delivers better performance and suitable for services with massive small files and services that require low latency.

Low latency, high IOPS, and tenant exclusive

High-performance website, file sharing, content management, image rendering, AI training, and enterprise OA

Performance-Enhanced

  • Maximum bandwidth: 2 GB/s; maximum IOPS: 100,000
  • Latency: 1 to 3 ms; maximum capacity: 320 TB
  • Enhanced bandwidth, IOPS, and capacity

Low latency, high IOPS, high bandwidth, and tenant exclusive

High-performance website, file sharing, content management, image rendering, AI training, and enterprise OA

20 MB/s/TiB

  • Maximum bandwidth: 8 GB/s; maximum IOPS: 250,000
  • Latency: 2 to 5 ms; capacity: 3.6 TB to 1 PB

Large capacity and low cost

Log storage, file sharing, content management, and websites

40 MB/s/TiB

  • Maximum bandwidth: 8 GB/s; maximum IOPS: 250,000
  • Latency: 2 to 5 ms; capacity: 1.2 TB to 1 PB

Large capacity and low cost

Log storage, file sharing, content management, and websites

125 MB/s/TiB

  • Maximum bandwidth: 20 GB/s; maximum IOPS: 1 million
  • Latency: 1 to 3 ms; capacity: 1.2 TB to 1 PB

Low latency and cost effectiveness

AI training, autonomous driving, EDA simulation, rendering, enterprise NAS, and high-performance web applications

250 MB/s/TiB

  • Maximum bandwidth: 20 GB/s; maximum IOPS: 1 million
  • Latency: 1 to 3 ms; capacity: 1.2 TB to 1 PB

Low latency and high bandwidth

AI training, autonomous driving, EDA simulation, rendering, enterprise NAS, and high-performance web applications

  • The performance of an SFS Turbo Standard, Standard-Enhanced, Performance, or Performance-Enhanced file system depends on the file system type. It is not affected by the file system capacity.
  • The performance of an SFS Turbo 20 MB/s/TiB, 40 MB/s/TiB, 125 MB/s/TiB, or 250 MB/s/TiB file system is proportional to the purchased capacity. The higher the file system capacity, the higher the bandwidth. Based on the bandwidth provided by each 1 TiB, SFS Turbo file systems are classified into the following types: 20 MB/s/TiB, 40 MB/s/TiB, 125 MB/s/TiB, 250 MB/s/TiB, 500 MB/s/TiB, and 1,000 MB/s/TiB.

    For example, if you buy a 250 MB/s/TiB file system with a capacity of 6 TiB, the bandwidth that this file system can provide is 1,500 MB/s (250 x 6).

    The minimum bandwidth of an SFS Turbo file system is 150 MB/s. If the calculated bandwidth is less than 150 MB/s, 150 MB/s will be the bandwidth of this file system. There will also be a maximum bandwidth for each type of SFS Turbo file systems. If the calculated bandwidth is greater than the maximum bandwidth, the maximum bandwidth will be the bandwidth of this file system.

  • In the table, the maximum IOPS and maximum bandwidth all include both the read and write operations. So, maximum IOPS = read IOPS + write IOPS.
  • The minimum expansion increment of an SFS Turbo Standard, Standard-Enhanced, Performance, or Performance-Enhanced file system is 100 GB. The expansion increment of a 20 MB/s/TiB, 40 MB/s/TiB, 125 MB/s/TiB, or 250 MB/s/TiB file system is 1.2 TB, and the new capacity must be an integral multiple of 1.2.