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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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usermode sio show deviostat

usermode sio show deviostat

Function

The usermode sio show deviostat command is used to view the I/O performance data of a disk in user mode.

Format

usermode sio show deviostat sdid=? [ interval=? ]

Parameters

Parameter

Description

Value

sdid=? Physical ID of the disk.

To obtain the value, run "usermode sddebug show disk" without parameter.

interval=? Interval.

The value is an integer ranging from 1 to 60(default:1). The default unit is second.

Views

Diagnostic view

Usage Guidelines

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

Example

View the I/O performance data of a disk.

admin:/diagnose>usermode sio show deviostat sdid=64 interval=5
sdId : 64
rrqm/s : 0.0
wrqm/s : 0.0
r/s : 0.0
w/s : 0.0
rkB/s : 0.0
wkB/s : 0.0
avgrq-sz : 0.0
avgqu-sz : 0.0
drv_avg/ms : 0.0
await/ms : 0.0
r_avg/ms : 0.0
w_avg/ms : 0.0
svctm/ms : 0.0
util : 0.0
iod/ms : 0.0
dif/ms : 0.0
ftds/ms : 0.0
sio : 0
sched : 0
dsp : 0
drv : 0
rcvIoCnt : 0

System Response

The following table describes the parameter meanings.

Parameter

Meaning

sdId

Physical ID of the disk.

rrqm/s

Number of merged read I/Os per second.

wrqm/s

Number of merged write I/Os per second.

r/s

Read IOPS.

w/s

Write IOPS.

rkB/s

Bandwidth of read I/Os.

wkB/s

Bandwidth of write I/Os.

avgrq-sz

Average I/O size.

avgqu-sz

Average queue depth.

drv_avg/ms

Average latency of read/write I/Os.

await/ms

I/O waiting time on the block device management (BDM) side.

r_avg/ms

Average latency of read I/Os.

w_avg/ms

Average latency of write I/Os.

svctm/ms

Average service time of I/Os.

util

Disk utilization.

iod/ms

Time for IOD scheduling.

dif/ms

Time for the DIF of I/Os.

ftds/ms

Time for FTDS.

sio

Number of I/Os on the SIO layer.

sched

Number of I/Os in the scheduler.

dsp

Number of I/Os under the dispatching layer.

drv

Number of I/Os delivered to the driver.

rcvIoCnt

Number of I/Os that are processed.

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Updated: 2020-01-17

Document ID: EDOC1000181602

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