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Advanced O&M Command Reference

OceanStor 2800 V3 V300R006

This document is applicable to OceanStor 2800 V3. Based on the CLI, this document describes how to use various commands classified by functionsand 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 cache dsgact_concur

change cache dsgact_concur

Function

The change cache dsgact_concur command is used to set the concurrent number of requests for cache global object cache flushing.

Format

change cache dsgact_concur cache_layer=? concur_type=? reqnum=? pagenum=?

Parameters

Parameter

Description

Value

cache_layer=?

Cache layer.

The value can be "volume_cache" or "stripe_cache", where:

  • "volume_cache": layer-1 cache or volume cache.
  • "stripe_cache": layer-2 cache or stripe cache.

concur_type=?

Type of concurrent requests.

The value can be "normal", "write_through", or "all", where:

  • "normal": normal cache flushing.
  • "write_through": write-through cache flushing.
  • "all": all types of cache flushing.

pagenum=?

Number of concurrent pages.

The value ranges from 1 to 262,1440.

The value indicates the number of concurrent cache flushing pages.

reqnum=?

Number of concurrent requests.

The value ranges from 1 to 8192.

The value indicates the number of concurrent cache flushing requests.

Views

Developer view

Usage Guidelines

Set the actual number of concurrent requests and pages for cache flushing of layer-1 or layer-2 cache global objects.

Example

Set the number of concurrent requests for stripe cache global objects' normal cache flushing and write-through cache flushing to "32" and "65535" respectively.

developer:/>change cache dsgact_concur cache_layer=stripe_cache concur_type=all reqnum=256 pagenum=65535 
WARNING: You are about to change the number of concurrent requests and pages of cache global object flushing. This operation may affect the system performance.  
Suggestion: Before performing this operation, ensure that the number of concurrent requests and pages needs to be changed. 
Have you read warning 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: 2019-07-12

Document ID: EDOC1000138381

Views: 666987

Downloads: 36

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