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OceanStor 9000 V300R006C00 Object Storage Service (Compatible with OpenStack Swift APIs) Administrator Guide 07

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Viewing SSD Wear Status

Viewing SSD Wear Status

SSD wear refers to the state of being worn due to read and write operations. Because SSD wear is inevitable, periodically check SSD wear status. When SSD wear reaches or is about to reach the severe degree, replace the SSD to prevent data loss.

Context

The SSD life span is determined by erase times. The minimum erasure unit of SSD is block. One block can be erased for 10 to 1,000,000 times. The system computes the remaining service life and total service life under the current workload based on disk wear status in the last one or multiple statistical periods and uses the percentage of used service life (the total service life minus the remaining service life) to total service as the wear.

Procedure

  1. Log in to DeviceManager.
  2. Choose System.
  3. Click a cabinet and a node that you want to view. In the front view of the node, click an SSD.
    • In a Performance node, an SSD sits in slot 0.

    • In a Capacity node, an SSD sits in slot 0.
  4. In the function pane, view the SSD enclosure location and color corresponding to the wear. Table 13-6 describes the mapping between the color and wear.

    Table 13-6  SSD wear

    Color

    Wear

    Alarm

    Recommended Action

    Green

    Mild wear

    None

    None

    Yellow

    Medium wear

    None

    None

    Red

    About to be used up

    Disk wear alarm

    Replace the malfunctioning SSD immediately.

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Updated: 2019-04-28

Document ID: EDOC1000122524

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