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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_tp

change cache destage_tp

命令功能

change cache destage_tp命令用于设置多时间点刷盘和cache对象多时间点刷盘对应参数。

命令格式

change cache destage_tp info=? { chunk_number_for_tp=? | tp_mark_ratio=? | tp_threshold=? } controller=?

参数说明

参数

参数说明

取值

info=?

需要修改的多时间点刷盘参数类型。

取值为:

  • chunk_number:多时间点刷盘选chunk数。
  • high_mark:触发多时间点刷盘的水位百分比。
  • low_mark:停止多时间点刷盘的水位百分比。
  • object_tp:cache对象多时间点刷盘。

chunk_number_for_tp=?

需要修改的多时间点刷盘选chunk数。

取值范围为8~1000。

tp_mark_ratio=?

需要修改的触发或停止多时间点刷盘的水位百分比。

取值范围为1~100。

tp_threshold=?

需要修改的cache对象多时间点刷盘触发阈值。

取值范围为4~64。

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_tp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 tp命令查询。

使用实例

  • 修改A控的多时间点刷盘选chunk数。
    developer:/>change cache destage_tp info=chunk_number chunk_number_for_tp=100 controller=0A 
    DANGER: You are about to modify the parameters of flushing and cache object flushing at multiple points in time. 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控的停止多时间点刷盘水位百分比。
    developer:/>change cache destage_tp info=low_mark tp_mark_ratio=50 controller=0A 
    DANGER: You are about to modify the parameters of flushing and cache object flushing at multiple points in time. 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cache对象多时间点刷盘触发阈值。
    developer:/>change cache destage_tp info=object_tp tp_threshold=50 controller=0A 
    DANGER: You are about to modify the parameters of flushing and cache object flushing at multiple points in time. 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控触发多时间点刷盘水位百分比。
    developer:/>change cache destage_tp info=high_mark tp_mark_ratio=80 controller=0A 
    DANGER: You are about to modify the parameters of flushing and cache object flushing at multiple points in time. 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

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