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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 functionsand how to set the CLI and manage the storage system through these commands.

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change lun_cache force_destage

change lun_cache force_destage

Function

The change lun_cache force_destage command is used to forcibly refresh dirty page in cache.

Format

change lun_cache force_destage layer=?

Parameters

Parameter

Description

Value

layer=? Layer of the Cache that needs to be refreshed.

The value can be volume_cache or stripe_cache.

Views

Developer view

Usage Guidelines

The change lun_cache force_destage command can be sucessfully sent. To view the command execution result, run the cache show cmd trace all command in diagnose view.

Example

To forcibly refresh the dirty page of all LUNs in volume cache.

developer:/>change lun_cache force_destage layer=volume_cache
CAUTION: You are about to flush cache data.
Suggestion: Before performing this operation, ensure that services have been stopped.
Do you wish to continue?(y/n)y
Command executed successfully.

System Response

None

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Updated: 2020-01-17

Document ID: EDOC1000181602

Views: 762256

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