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Advanced O&M Command Reference

OceanStor 18000 and 18000F V5 Series V500R007

This document is applicable to OceanStor 18500 V5, 18800 V5, 18500F V5, and 18800F 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 cache volume_dsgroot_concur

change cache volume_dsgroot_concur

Function

The change cache volume_dsgroot_concur command is used to set the number of root_destage concurrencies of global concurrent objects in volume_cache.

Format

change cache volume_dsgroot_concur concur_type=? reqnum=? pagenum=?

Parameters

Parameter

Description

Value

concur_type=?

Concurrent type.

The value of "concur_type" can be "thick_lun","thin_lun" or "all",where:

  • thick_lun:The concurrency type is thick lun.
  • thin_lun:The concurrency type is thin lun.
  • all:The concurrency type is "all".

reqnum=?

Number of concurrent REQs.

The value is an integer ranging from 1 to 8192. This parameter is used to set the number of concurrent REQs for the cache destage.

pagenum=?

Number of concurrent pages.

The value is an integer ranging from 1 to 2621440. This parameter is used to set the number of concurrent pages for the cache destage.

Views

Developer view

Usage Guidelines

Set the number of REQs and Pages of root_destage concurrencies of global concurrent objects in volume_cache.

Example

Set the number of REQs and Pages of root_destage concurrencies of global concurrent objects in volume_cache to "256" and "65535" respectively.

developer:/>change cache volume_dsgroot_concur concur_type=all reqnum=256 pagenum=65535 
WARNING:You are about to change the number of REQ and Page concurrencies of cache global concurrent objects.This operation may affect the system performance. 
Suggestion:Before running this operation, ensure that the number of REQ and Page concurrencies of cache global concurrent objects is correct. 
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: 2019-07-11

Document ID: EDOC1000181602

Views: 626747

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