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Advanced O&M Command Reference

OceanStor 2000, 5000, and 6000 V3 Series V300R006

This document is applicable to OceanStor 2200 V3, 2600 V3 Video Surveillance Edition, 2600 V3, 5300 V3, 5500 V3, 5600 V3, 5800 V3, and 6800 V3. 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. 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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devlun showdispatchio

devlun showdispatchio

Function

The devlun showdispatchio command is used to view information about I/Os delivered onto LUNs.

Format

devlun showdispatchio [ lunid num | lunid ]

Parameters

Parameter

Description

Value

lunid

LUN ID.

The value ranges from 0 to n

minus one. n indicates the

maximum number of LUNs.

num

Information about num LUNs after a LUN ID.

LUN ID plus num is less than

n minus one, where n

indicates the maximum

number of LUNs supported

by a product.

Views

Diagnostic view

Usage Guidelines

None

Example

  • View information about I/Os delivered onto a LUN.
    admin:/diagnose>devlun showdispatchio 1 
    Dispatched read IO count(1), write IO count(1). 
    index req parent opcode LBA length io flag 
    ----- --- ------ ------ --- ------ -------
  • View information about I/Os delivered onto num LUNs after a LUN ID.
    admin:/diagnose>devlun showdispatchio 0 13 
    lunid read IO count write IO count 
    ----- ------------- -------------- 
    0 1 1 
    1 1 1 
    2 1 1 
    3 1 1 
    4 2 6 
    5 1 1 
    6 1 1 
    7 1 1 
    8 1 1 
    9 1 1 
    10 1 1 
    11 1 1 
    12 1 1
  • View information about I/Os delivered on all LUNs.
    admin:/diagnose>devlun showdispatchio 
    lunid read IO count write IO count 
    ----- ------------- -------------- 
    0 1 1 
    1 1 1 
    2 1 1 
    3 1 1 
    4 2 6 
    5 1 1 
    6 1 1 
    7 1 1 
    8 1 1 
    9 1 1 
    10 1 1 
    11 1 1 
    12 1 1 
    13 1 1 
    14 1 1 
    15 1 0
  • View information about I/Os delivered on all LUNs when switch is off.
    admin:/diagnose>devlun showdispatchio 
     
    The dispatch io switch is off, open it first.

System Response

The following table describes the parameter meanings.

Parameter

Meaning

Dispatched read IO count

Count of delivered read I/Os.

write IO count

Count of delivered write I/Os.

index

Current I/O index.

req

Current REQ.

parent

Parent REQ.

opcode

Operation code.

LBA

Start address of REQ access.

length

Address length of REQ access.

io flag

I/O flag.

lunid

LUN ID.

read IO count

Count of delivered read I/Os.

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Updated: 2019-07-12

Document ID: EDOC1000138402

Views: 605890

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