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OceanStor Dorado V3系列 V300R002 高级运维命令参考(块业务)

本产品文档适用于OceanStor Dorado3000 V3, Dorado5000 V3, Dorado6000 V3和Dorado18000 V3。本文档针对CLI命令行,介绍如何使用CLI设置和管理存储系统,以及按功能分类详细介 绍各命令的使用方法。
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change disk schedule_work_status

change disk schedule_work_status

命令功能

change disk schedule_work_status命令用于设置指定类型硬盘的I/O调度模式。

命令格式

change disk schedule_work_status work_status=? { scenario=? | medium_type=? } *

参数说明

参数

参数说明

取值

medium_type=?

盘片类型。

取值为nvme_ssd。

说明:

Dorado5000 V3只支持nvme_ssd,Dorado6000 V3只支持ssd。

scenario=?

应用场景。

可以取以下值:

smr。

work_status=?

调度器的工作模式。

可以取以下值:

normal, read_first。

视图

研发视图

使用指南

根据不同类型的硬盘性能要求,改变硬盘I/O的调度模式,此命令只能使用支持SSH协议的远程登录软件登录存储系统CLI控制界面执行。

使用实例

  • 将所有应用场景为SMR的NVMe_SSD硬盘的I/O调度模式设为读优先。
    developer:/>change disk scheduler_work_status work_status=read_first medium_type=nvme_ssd scenario=smr 
    DANGER: You are about to change the I/O scheduling mode of disks. This operation may cause system abnormalities. 
    Suggestion: Note the following before and after the command execution: 
    1. Ensure that the command is to be executed by the R&D personnel. 
    2. This command changes the I/O scheduling mode of disks, which may deteriorate system read and write performance. 
    3. After executing this command, check whether the service system is running correctly.  
    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.
  • 将所有NVMe_SSD硬盘的I/O调度模式设为读优先。
    developer:/>change disk scheduler_work_status work_status=read_first medium_type=nvme_ssd 
    DANGER: You are about to change the I/O scheduling mode of disks. This operation may cause system abnormalities. 
    Suggestion: Note the following before and after the command execution: 
    1. Ensure that the command is to be executed by the R&D personnel. 
    2. This command changes the I/O scheduling mode of disks, which may deteriorate system read and write performance. 
    3. After executing this command, check whether the service system is running correctly.  
    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.
  • 将所有应用场景为SMR的硬盘的I/O调度模式设为读优先。
    developer:/>change disk scheduler_work_status work_status=read_first scenario=smr  
    DANGER: You are about to change the I/O scheduling mode of disks. This operation may cause system abnormalities. 
    Suggestion: Note the following before and after the command execution: 
    1. Ensure that the command is to be executed by the R&D personnel. 
    2. This command changes the I/O scheduling mode of disks, which may deteriorate system read and write performance. 
    3. After executing this command, check whether the service system is running correctly.  
    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.

输出说明

无。

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更新时间:2019-07-17

文档编号:EDOC1100049100

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