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OceanStor 2200 V3 and 2600 V3 Storage System V300R005 SmartCache Feature Guide 05

"This document describes the implementation principles and application scenarios of theSmartCache feature. Also, it explains how to configure and manage SmartCache."
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Viewing SmartCache Partition Information

Viewing SmartCache Partition Information

This operation enables you to view information about a SmartCache partition.

Context

The license for SmartCache has been imported.

Procedure

  1. Log in to DeviceManager.
  2. Choose Provisioning > Resource Performance Tuning > SmartCache > SmartCache Partition.
  3. View SmartCache partition information. Table 3-2 describes related parameters.

    Table 3-2  SmartCache partition parameters

    Parameter

    Description

    Value

    Name

    Name of the SmartCache partition.

    The name must meet the following requirements so that the SmartCache partition is available to compatible applications:

    [Value range]

    • The name must be unique.
    • The name can contain only letters, digits, underscores (_), periods (.), and hyphens (-).
    • The name contains 1 to 31 characters.

    [Example]

    SmartCachePartition001

    ID

    ID of the SmartCache partition.

    [Example]

    1

    Owning Engine

    Engine of the SmartCache partition.

    [Example]

    StorageEngine000

    Expect Capacity

    The capacity of the SmartCache partition you expect to use.
    NOTE:

    The Expect Capacity, Used Capacity, and Free Capacity of a partition must comply with the following principle:

    (Used capacity of partition A + Free capacity of partition A)/Total capacity of SSDs in SmartCache pools on the engine to which partition A belongs ≈ Expect capacity of partition A/Sum of the maximum capacity of SmartCache pools on the engine to which partition A belongs

    [Example]

    300 MB

    Used Capacity

    Used capacity of the SmartCache partition.

    [Example]

    100 MB

    Free Capacity

    Free capacity of the SmartCache partition.

    [Example]

    200 MB

    SSD Real-Time Hit Ratio (%)

    Every 10 seconds, the ratio of read I/O hits of data in the SmartCache partition to the total read I/O requests the SmartCache partition receives. For example, the SmartCache partition receives 10 read I/O requests, 5 of them successfully processed in the partition, therefore the SSD real-time hit ratio is 50%.

    [Example]

    50%

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Updated: 2018-06-04

Document ID: EDOC1000106151

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