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    E-MapReduce:SystemDisk

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    E-MapReduce:SystemDisk

    Last Updated:May 28, 2026

    Parameter

    Type

    Description

    Example

    object

    Category

    string

    The type of the system disk. Valid values:

    • cloud_efficiency: Ultra Disk.

    • cloud_ssd: SSD Cloud Disk.

    • cloud_essd: ESSD.

    • cloud: Basic Disk.

    cloud_essd
    Size

    integer

    The size of the system disk, in GB.

    60
    PerformanceLevel

    string

    The performance level of the ESSD. This parameter is valid only when Category is set to cloud_essd. Valid values:

    • PL0: Up to 10,000 random read/write IOPS per disk.

    • PL1 (default): Up to 50,000 random read/write IOPS per disk.

    • PL2: Up to 100,000 random read/write IOPS per disk.

    • PL3: Up to 1,000,000 random read/write IOPS per disk.

    PL1
    Count

    integer

    Specifies the number of system disks on each node. Default value: 1.

    1