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Command Reference

OceanStor 18000 and 18000F V5 Series V500R007

This document is applicable to OceanStor 18500 V5, 18800 V5, 18500F V5, and 18800F V5 storage systems. It describes hardware installation of those storage systems for helping you easily and quickly finish the installation.

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show controller io

show controller io


show controller io command is used to query information about concurrent I/Os of a specified controller.


show controller io io_type=? controller_id=?





io_type=? Type of concurrent I/Os of a controller.

The value can be "frontEnd" or "backEnd", where:

  • "frontEnd": indicates front-end concurrent I/Os.
  • "backEnd": indicates back-end concurrent I/Os.
controller_id=? Controller ID.

The value is in the format of "XA", "XB", "XC" or "XD", where the "X" is an integer ranging from 0 to 3.

To obtain the value, run "show controller general".



Usage Guidelines



  • Query information about front-end concurrent I/Os of controller "0A".
admin:/>show controller io io_type=frontEnd controller_id=0A
  Controller Id   : 0A
  Front End IO    : 0
  Front End Limit : 128

System Response

The following table describes the parameter meanings.



Controller Id

Controller ID.

Front End IO

Front-end concurrent I/Os.

Front End Limit

Upper limit of front-end concurrent I/Os.

Port Type

Type of the back-end port.

Port Id

ID of the back-end port.

Back End IO

Back-end concurrent I/Os.

Back End Limit

Upper limit of back-end concurrent I/Os.

Updated: 2020-01-17

Document ID: EDOC1000181601

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