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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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xnet iodis

xnet iodis

Function

The xnet iodis command is used to collect statistics on I/O interval distribution.

Format

xnet iodis -s -a [step] -n [dst_nid] -f [flag] -usermode

Parameters

Parameter

Description

Value

-a An interval for collecting statistics.

-

-f Start and end flags.

The value can be "0" or "1", where:

  • "0": starts collecting statistics.
  • "1": stops collecting statistics.
-n Destination node ID.

-

-s Displays statistics.

-

usermode This parameter is mandatory. It must be added to the end of a command as a suffix to query user state information.

The value can be:

  • "-app_data": executes the command for the app_data process.
  • "-devm": executes the command for the devm process.
  • "-sys_app": executes the command for the sys_app process.
  • "-cfg_app": executes the command for the cfg_app process.

Views

Developer view

Usage Guidelines

OceanStor 18500 V5 Kunpeng, 18500F V5 Kunpeng, 18800 V5 Kunpeng and 18800F V5 Kunpeng storage systems support this command.

Example

  • Start collecting statistics on I/Os with an interval of 100 us.

    admin:/diagnose>xnet iodis -a 100 -n 786433 -f 1 -app_data
    Start static iodis, step(100 us) dst nid(0xc0001).
  • Query statistics on I/Os with an interval of 100 us.

    admin:/diagnose>xnet iodis -s -app_data
  • Stop collecting statistics on I/Os with an interval of 100 us.

    admin:/diagnose>xnet iodis -a 100 -n 786433 -f 0 -app_data
    Stop static iodis success.

System Response

The following table describes the parameter meanings.

Parameter

Meaning

step

An interval for collecting statistics.

dst nid

Destination node ID.

Translation
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Updated: 2020-01-17

Document ID: EDOC1000181602

Views: 758762

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