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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 cache destage_timer

change cache destage_timer

命令功能

change cache destage_timer命令用于修改定时器刷盘的时间间隔、触发正常水位刷盘的频率、worker切换调度的最大循环次数、超时时间以及停正常水位刷盘的最大循环次数。

命令格式

change cache destage_timer info=? { worker_max_time=? | worker_max_loop=? | destage_max_loop=? | timer_value=? | frequency=? } controller=?

参数说明

参数

参数说明

取值

info=?

需要修改的刷盘参数类型。

取值为:

  • worker_time:worker切换调度的超时时间。
  • worker_loop:worker切换调度的最大循环次数。
  • normal_destage_loop:停止正常水位刷盘的最大循环次数。
  • destage_timer:定时器刷盘时间间隔。
  • quota_trigger_frequency:触发正常水位刷盘的频率。

worker_max_time=?

需要修改的worker切换调度的超时时间。单位ms。

取值范围为1~10。

worker_max_loop=?

需要修改worker切换调度的最大循环次数。

取值范围为64~4096。

destage_max_loop=?

需要修改的停正常水位刷盘的最大循环次数。

取值范围为64~4096。

timer_value=?

需要修改的定时器刷盘时间间隔。单位ms。

取值范围为10~100。

frequency=?

需要修改的触发正常水位刷盘的频率。

取值范围为1000~10000。

controller=?

控制器ID。

取值格式为“XA”或“XB”或“XC”或“XD”,其中“X”是取值范围为0~3的整数,比如“0A”,“1C”。

视图

研发视图

使用指南

change cache destage_timer命令只保证命令下发成功,如果需要查询命令执行结果,通过diagnose视图下的ncache show destage worker和ncache show destage normal命令查询。

使用实例

  • 修改A控worker切换调度的超时时间。
    developer:/>change cache destage_timer info=worker_time worker_max_time=100000 controller=0A 
    DANGER: You are about to modify the interval of flushing triggered by timers,  and the frequency for triggering flushing by the resource change. This operation will affect the system performance. 
    Suggestion: Before performing this operation, confirm that you know about the impact. 
    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.
  • 修改A控触发正常水位刷盘的频率。
    developer:/>change cache destage_timer info=quota_trigger_frequency frequency=3000 controller=0A 
    DANGER: You are about to modify the interval of flushing triggered by timers,  and the frequency for triggering flushing by the resource change. This operation will affect the system performance. 
    Suggestion: Before performing this operation, confirm that you know about the impact. 
    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.
  • 修改A控定时器刷盘的时间间隔。
    developer:/>change cache destage_timer info=destage_timer timer_value=50 controller=0A 
    DANGER: You are about to modify the interval of flushing triggered by timers,  and the frequency for triggering flushing by the resource change. This operation will affect the system performance. 
    Suggestion: Before performing this operation, confirm that you know about the impact. 
    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.
  • 修改停止正常水位刷盘的最大循环次数。
    developer:/>change cache destage_timer info=normal_destage_loop destage_max_loop=500 controller=0A 
    DANGER: You are about to modify the interval of flushing triggered by timers,  and the frequency for triggering flushing by the resource change. This operation will affect the system performance. 
    Suggestion: Before performing this operation, confirm that you know about the impact. 
    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.
  • 修改A控worker切换调度的最大循环时间。
    developer:/>change cache destage_timer info=worker_loop worker_max_loop=500 controller=0A 
    DANGER: You are about to modify the interval of flushing triggered by timers,  and the frequency for triggering flushing by the resource change. This operation will affect the system performance. 
    Suggestion: Before performing this operation, confirm that you know about the impact. 
    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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