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Strengths

Last updated: 2022-04-06 15:30:09

    Benefits

    Integrated management

    • CFS supports POSIX access syntax (such as strong data consistency and file locking). Tencent Cloud's computing resources can be mounted to CFS through the NFS v3.0/v4.0 protocol.
    • CFS comes with a console where you can quickly create and configure a file system, reducing the time needed for deployment and the workload of file system maintenance.

    Automatic scaling

    CFS can automatically expand the storage capacity of a file system based on file size without interrupting requests and applications during the process, thereby ensuring exclusive use of storage resources while reducing the time cost and workload of management.

    Security and reliability

    • CFS employs a three-copy distributed mechanism that can securely store data across racks to ensure reliability up to 99.9999999%. The service won't return a success response to a write request until it confirms that the data has been written in all three copies. In case that any one of the copies fails, CFS will quickly copy a new one through data migration to ensure that there are always three copies ready for use.
    • CFS can strictly control access to file systems, allowing you to implement access control by using the security groups in the basic network or VPCs together with permission groups.

    Low costs

    • CFS can dynamically adjust the capacity as needed, without early storage capacity scheduling required. You only need to pay for what you use with no minimum fees or deployment or OPS fees.
    • CFS allows multiple compute nodes to share the same storage capacity via the NFS and CIFS/SMB protocols, eliminating your need to purchase other storage services or care about cache.

    Model Selection

    Application scenarios: CFS vs. CBS

    Category Single CFS File System Single Cloud Disk
    Throughput Up to 40 GB/s for high-performance CFS

    Up to 300 MB/s for standard CFS

    Up to 260 MB/s for SSD cloud disk

    Up to 150 MB/s for premium cloud disk

    IOPS Up to 60K IOPS for high-performance CFS

    Up to 4K IOPS for standard CFS

    Up to 26K IOPS for SSD cloud disk

    Up to 6K IOPS for premium cloud disk

    Sharing Shared by tens of thousands of clients with strong data consistency Shared by dozens of clients with no guarantee for consistency
    Number of redundant copies 3 3
    How to use Usable directly after mount File system installation required

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