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zhangyue 3eb84d1abc SFS UMN DOC 
Reviewed-by: Muller, Martin <martin.muller@t-systems.com>
Co-authored-by: zhangyue <zhangyue164@huawei.com>
Co-committed-by: zhangyue <zhangyue164@huawei.com>
2023-08-30 08:42:18 +00:00

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File System Types

SFS provides two types of file systems: SFS Capacity-Oriented and SFS Turbo. SFS Turbo is classified into SFS Turbo Standard, SFS Turbo Standard – Enhanced, SFS Turbo Performance, and SFS Turbo Performance – Enhanced.

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

Feature

Highlight

Application Scenario

SFS Capacity-Oriented

-
  • Maximum bandwidth: 10 GB/s; maximum IOPS: 10,000
  • With optimized features, it is suitable for services that require large capacity and high bandwidth.
  • The maximum capacity can reach 2 PB, and the latency range is as follows:
    • For sequential large I/Os of large files, the latency ranges from 20 ms to 50 ms.
    • For sequential small I/Os of large files, the latency ranges from 10 ms to 20 ms.
    • For random small I/Os of large files, the latency ranges from 200 ms to 500 ms.
NOTE:
  • Latency refers to the minimum latency under low workload conditions. It is unstable.
  • Large files refer to files larger than 10 MB, and large I/Os refer to I/Os larger than 1 MB.

Large capacity, high bandwidth, and low cost

Cost-sensitive workloads which require large-capacity scalability, such as media processing, file sharing, HPC, and data backup. For workloads dealing with massive small files, SFS Turbo is recommended.

SFS Turbo

SFS Turbo Standard
  • Maximum bandwidth: 120 MB/s; maximum IOPS: 3,000
  • Latency: 10 to 20 ms; maximum capacity: 32 TB
  • It is suitable for services with massive small files and services that require low latency.

Low latency and tenant exclusive

Workloads dealing with massive small files, such as code storage, log storage, web services, and virtual desktop

SFS Turbo Standard - Enhanced
  • Maximum bandwidth: 1 GB/s; maximum IOPS: 15,000
  • Latency: 10 to 20 ms; maximum capacity: 320 TB
  • Enhanced bandwidth, IOPS, and capacity

Low latency, high bandwidth, and tenant exclusive

Workloads dealing with massive small files and those requiring high bandwidth, such as code storage, file sharing, enterprise office automation (OA), and log storage.

SFS Turbo Performance
  • Maximum bandwidth: 320 MB/s; maximum IOPS: 20,000
  • Latency: 6 to 10 ms; maximum capacity: 32 TB
  • With optimized features, it is suitable for services with massive small files and services that require low latency and high IOPS.

Low latency, high IOPS, and tenant exclusive

Workloads dealing with massive small files, and random I/O-intensive and latency-sensitive services, such as high-performance websites, file sharing, and content management

SFS Turbo Performance - Enhanced
  • Maximum bandwidth: 2 GB/s; maximum IOPS: 100,000
    NOTE:

    Maximum performance can be reached with 5 ECSs in parallel which have recommended configuration c4.4xlarge.4.

  • Latency: 6 to 10 ms; maximum capacity: 320 TB
  • Enhanced bandwidth, IOPS, and capacity

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

Workloads dealing with massive small files, and latency-sensitive and bandwidth-demanding workloads, such as image rendering, AI training, and enterprise OA.
Parent topic: Introduction