Storage Class and Performance Specification

Last updated: 2020-08-10 11:22:07

    CFS offers two types of file systems: standard and high-performance. Below are their features, benefits, and use cases.

    File System Type Features Benefits Use Cases
    Standard
  • Elastic scaling of storage capacity based on the number of writes, up to 160 TB
  • Linear scaling of throughput based on file system capacity, up to 300 MB/s
  • Up to 4K IOPS (4 KB random read/write)
  • Low costs
  • High volume
  • The most common file sharing scenarios that require high cost efficiency, such as data backup, OA, log storage, and small file sharing
    High-performance
  • Elastic scaling of storage capacity based on the number of writes, up to 2 PB
  • Linear scaling of throughput based on file system capacity, up to 40 GB/s
  • Up to 60K IOPS (4 KB random read/write)
  • High throughput
  • High IOPS
  • High-through, compute-intensive workloads mainly involving large files, such as high-performance computing, media asset rendering, and machine learning

    Performance Formula

    The relationship between the throughput of a single standard or high-performance file system and the amount of write storage is as follows:

    File System Type Performance Formula
    Standard Throughput (MB/s) = storage usage (GB) * 0.1 + 100
    High-performance Throughput (MB/s) = storage usage (GB) * 0.2 + 200

    Note:

    The above formulas show the capabilities a file system can provide. To reach the upper performance limit, you usually need to perform multi-threaded reads/writes by using multiple computing nodes.

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