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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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io show

io show

Function

The io show command is used to query the count of I/Os (start, end, and not back) or information about I/O delay.

Format

io show -m valid [-c|-t] [-n keyword] [-h]

io show -m all [-c|-t] [-n keyword] [-h]

io show -m pid [-c|-t] [-n keyword] [-h]

io show -l level [-c|-t] [-n keyword] [-h]

Parameters

Parameter

Description

Value

-m Module.

-

-l Level.

-

-c Shows the count.

-

-t Shows the delay.

-

-h Shows historical data.

-

-n Shows I/O statistics at a single count point or delay point.

-

valid Statistics on valid I/Os at a specific statistics point. If the statistics on an I/O are zeros, the statistics are not displayed.

-

all Statistics on all I/Os at a specific statistics point. All statistics, no matter whether they are zeros, are displayed.

-

pid Module PID.

-

level Statistics point level.

-

keyword Statistics point name.

-

Views

Diagnostic view

Usage Guidelines

  • One of -m and -l must be selected.
  • If -m is selected, one of valid, all, and pid must be selected.
  • If -l is selected, the parameter is level.
  • Other parameters are optional.

Example

Query information about the I/O statistics point whose I/O count is not zero.

admin:/diagnose>io show -m valid
Name                              pid     level     Start      Back Good     Back Bad     Not Back       Av           Max          Min           Total         Location
  ------------                     ------- ------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ---------------- ------------
  BDM_LD                               151       3          923          923            0            0            0            0            0                0   0x00160003
  BDM_SIO_RW                           151       3          766          766            0            0            0            0            0                0   0x0016001f
  BDM_SIO_DISK_DISP                    151       3          789          789            0            0            0            0            0                0   0x00160025
  BDM_SIO_DRV_RW                       151       2          789          789            0            0        17364       145153           60         13700245   0x00160026
  BDM_LD_READ                          151       2           40           40            0            0          799         1443          425            31972   0x0016002c
  BDM_LD_WRITE                         151       2          883          883            0            0        17008       145224           93         15018369   0x0016002d
  BDM_LD_SYSPOOL_READ                  151       2           40           40            0            0          795         1437          424            31816   0x00160034
  BDM_LD_SYSPOOL_WRITE                 151       2          883          883            0            0        17005       145220           92         15016180   0x00160035
  BDM_PRI_EXTREME_HIGH_WRITE           151       3          588          588            0            0          111        34127            1            65628   0x0016003a
  BDM_SIO_READ                         151       2           31           31            0            0          700         1392          416            21726   0x00160049
  BDM_SIO_WRITE                        151       2          735          735            0            0        18439       145189           83         13552979   0x0016004a
  BDM_SIO_DISK_DIF_READ                151       2           31           31            0            0          670         1370          405            20794   0x0016004b
  BDM_SIO_DISK_DIF_WRITE               151       2          758          758            0            0        18073       145159           66         13699429   0x0016004c
  BDM_SIO_DRV_READ                     151       2           31           31            0            0          658         1356          402            20417   0x0016004d
  BDM_SIO_DRV_WRITE                    151       1          758          758            0            0        18049       145155           61         13681304   0x0016004e
  BDM_SIO_DISK_DISP_READ               151       2           31           31            0            0          683         1378          410            21181   0x0016004f
  BDM_SIO_DISK_DISP_WRITE              151       2          758          758            0            0        18229       145168           74         13818004   0x00160050

System Response

The following table describes the parameter meanings.

Parameter

Meaning

Name

Name of the statistical item.

Start

Number of delivered I/Os of a specific type.

Back Good

Number of successful I/Os of a specific type.

Back Bad

Number of failed I/Os of a specific type.

Not Back

Number of I/Os of a specific type that are not returned.

Pid

ID of the specific type.

Level

Level of the specific type.

Av

Average delay.

Max

Maximum delay.

Min

Minimum delay.

Total

Total delay.

Location

Location ID.

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Updated: 2020-01-17

Document ID: EDOC1000181602

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