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Advanced O&M Command Reference

OceanStor 2800 V5 V500R007

This document is applicable to OceanStor 2800 V5. Based on the CLI, this document describes how to use various commands classified by functions and how to set the CLI and manage the storage system through these commands. The document that you browse online matches the latest C version of the product. Click Download to download documents of other C versions.

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change disk_domain format_parallel

change disk_domain format_parallel

Function

The change disk_domain format_parallel command is used to modify the concurrency parameters for background formatting.

Format

change disk_domain format_parallel switch=? [disk_parallel=?] [disk_io_parallel=?]

Parameters

Parameter

Description

Value

switch=? Whether to enable the function of modifying background formatting concurrency parameters.

The value is "on" or "off", where:

  • "on": enables the function of modifying background formatting concurrency parameters.
  • "off": disables the function of modifying background formatting concurrency parameters.
disk_parallel=? Number of concurrent disks.

The value is an integer from 1 to 512.

disk_io_parallel=? Number of concurrent I/Os per disk.

The value is an integer from 1 to 16.

Views

Developer view

Usage Guidelines

None

Example

  • Accelerate background formatting.

    developer:/>change disk_domain format_parallel switch=on
    DANGER: You are about to modify the formatting concurrency parameters. Increasing the formatting concurrency may affect services. Decreasing the concurrency may affect the formatting speed. After the formatting is complete, you must disable the switch. 
    Suggestion: Confirm that you want to perform this operation.
    Have you read danger alert message carefully?(y/n)y
     
    Are you sure you really want to perform the operation?(y/n)y
    Command executed successfully.
  • Modify the number of concurrent disks formatted in the background to 30 and the number of concurrent I/Os per disk to 4.

    developer:/>change disk_domain format_parallel switch=on disk_parallel=30 disk_io_parallel=4
    DANGER: You are about to modify the formatting concurrency parameters. Increasing the formatting concurrency may affect services. Decreasing the concurrency may affect the formatting speed. After the formatting is complete, you must disable the switch. 
    Suggestion: Confirm that you want to perform this operation.
    Have you read danger alert message carefully?(y/n)y
     
    Are you sure you really want to perform the operation?(y/n)y
    Command executed successfully.
  • Disable the function of modifying background formatting concurrency parameters.

    developer:/>change disk_domain format_parallel switch=off                                   
    DANGER: You are about to modify the formatting concurrency parameters. Increasing the formatting concurrency may affect services. Decreasing the concurrency may affect the formatting speed. After the formatting is complete, you must disable the switch. 
    Suggestion: Confirm that you want to perform this operation.
    Have you read danger alert message carefully?(y/n)y
     
    Are you sure you really want to perform the operation?(y/n)y
    Command executed successfully.

System Response

None

Translation
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Updated: 2020-01-17

Document ID: EDOC1000181575

Views: 729172

Downloads: 32

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