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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 disk_domain relocation_parallel

change disk_domain relocation_parallel

Function

The change disk_domain relocation_parallel command is used to modify the concurrency parameters of reconstruction, pre-copy, and balancing tasks.

Format

change disk_domain relocation_parallel [ckg_parallel=?] [ckg_io_parallel=?] [disk_io_parallel=?] [disk_io_parallel_nohost=?]

Parameters

Parameter

Description

Value

ckg_parallel =? Maximum number of concurrent CKGs per task.

The value is an integer from 1 to 512.

ckg_io_parallel=? Number of concurrent I/Os per CKG.

The value is an integer from 1 to 8.

disk_io_parallel=? Number of concurrent I/Os per disk with host I/Os.

The value is an integer from 1 to 8.

disk_io_parallel_nohost=? Number of concurrent I/Os per disk without host I/Os.

The value is an integer from 1 to 16.

Views

Engineer view

Usage Guidelines

None

Example

Change the maximum number of concurrent CKGs of a reconstruction, pre-copy, or balancing task to 200, the number of concurrent I/Os per CKG to 4, that per disk with host I/Os to 1, and that per disk without host I/Os to 4.

engineer:/>change disk_domain relocation_parallel ckg_parallel=200 ckg_io_parallel=4 disk_io_parallel=1 disk_io_parallel_nohost=4
DANGER: You are about to modify the concurrency parameters of the reconstruction, pre-copy, and balancing tasks. Increasing the concurrency parameters will affect service performance. Decreasing the concurrency parameters will reduce the reconstruction, pre-copy, and balancing speeds. 
Suggestion: Confirm that you want to perform this operation.
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.

System Response

None

Translation
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Updated: 2020-01-17

Document ID: EDOC1000181602

Views: 757089

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