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Command Reference for Block

OceanStor Dorado V3 Series V300R002

This document is applicable to OceanStor Dorado3000 V3, Dorado5000 V3, Dorado6000 V3 and Dorado18000 V3. Based on the CLI provided by the DeviceManager, this document describes how to use various commands classified by functions and how to set the CLI and manage the storage system through these commands.
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show performance disk_domain

show performance disk_domain

Function

The show performance disk_domain command is used to query the performance statistics on a disk domain. Run this command to analyze the performance statistics on a disk domain in real time.

Format

show performance disk_domain [ disk_domain_id=? ] [ disk_domain_id_list=? ]

Parameters

Parameter

Description

Value

disk_domain_id=?

ID of a disk domain on which you want to query performance statistics.

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

disk_domain_id_list=?

ID list of disk domains on which you want to query performance statistics.

  • To obtain the value, run "show disk_domain general".
  • Separate the IDs of disk domains with commas (,). Consecutive IDs can be represented by using a hyphen (-).

Level

Guest

Usage Guidelines

  • You will be prompted with optional performance statistics categories upon running this command. In this condition, typing a number or multiple numbers (separated by commas) for the selected categories and pressing "Enter" displays the performance statistics for those categories.
  • Performance statistics will be updated in real time.
  • Typing "q" on the command line interface (CLI) exits the active performance statistics display.
  • "disk_domain_id" is mutually exclusive with "disk_domain_id_list".

Example

Query the I/O throughput of disk domain "0".

admin:/>show performance disk_domain disk_domain_id=3 
0.Queue Length                                            
1.Bandwidth(MB/s) / Block Bandwidth(MB/s)                 
2.Throughput(IOPS)(IO/s)                                
3.Read Bandwidth(MB/s)                                    
4.Average Read I/O Size(KB)                               
5.Read Throughput(IOPS)(IO/s)                             
6.Write Bandwidth(MB/s)                                   
7.Average Write I/O Size(KB)                              
8.Write Throughput(IOPS)(IO/s)                            
9.Service Time(Excluding Queue Time)(ms)                  
10.Read I/O Granularity Distribution: [0K,1K)(%)          
11.Read I/O Granularity Distribution: [1K,2K)(%)          
12.Read I/O Granularity Distribution: [2K,4K)(%)          
13.Read I/O Granularity Distribution: [4K,8K)(%)          
14.Read I/O Granularity Distribution: [8K,16K)(%)         
15.Read I/O Granularity Distribution: [16K,32K)(%)        
16.Read I/O Granularity Distribution: [32K,64K)(%)        
17.Read I/O Granularity Distribution: [64K,128K)(%)       
18.Read I/O Granularity Distribution: [128K,256K)(%)      
19.Read I/O Granularity Distribution: [256K,512K)(%)      
20.Read I/O Granularity Distribution: >= 512K(%)          
21.Write I/O Granularity Distribution: [0K,1K)(%)         
22.Write I/O Granularity Distribution: [1K,2K)(%)         
23.Write I/O Granularity Distribution: [2K,4K)(%)         
24.Write I/O Granularity Distribution: [4K,8K)(%)         
25.Write I/O Granularity Distribution: [8K,16K)(%)        
26.Write I/O Granularity Distribution: [16K,32K)(%)       
27.Write I/O Granularity Distribution: [32K,64K)(%)       
28.Write I/O Granularity Distribution: [64K,128K)(%)      
29.Write I/O Granularity Distribution: [128K,256K)(%)     
30.Write I/O Granularity Distribution: [256K,512K)(%)     
31.Write I/O Granularity Distribution: >= 512K(%)         
32.Average I/O Latency(ms)                                
33.Max. I/O Latency(ms)                                   
34.Average Read I/O Latency(ms)                           
35.Average Write I/O Latency(ms)                          
36.Average IO Size(KB)                                    
37.BE Reqs/sec                                            
38.BE Read Reqs/sec                                       
39.BE Write Reqs/sec                                      
40.BE MBs transferred/sec                                 
41.BE MBs Read/sec                                        
42.BE MBs Written/sec                                     
43.% Read                                                 
44.% Write                                                
45.BE % Reads                                             
46.BE % Writes                                            
47.Average I/O Latency(us)                                
48.Max. I/O Latency(us)                                   
49.Average Read I/O Latency(us)                           
50.Average Write I/O Latency(us)                          
51.BE Read Response Time(us)                              
52.BE Write Response Time(us)                             
53.BE Avg Response Time(us)                               
54.Average utilization of member disks(%) 
Input item(s) number separated by comma:2 
Throughput(IOPS)(IO/s) : 4310

System Response

The following table describes the parameter meanings.

Parameter

Meaning

Usage Ratio(%)

Usage rate.

Queue Length

Queue length.

Bandwidth(MB/s) / Block Bandwidth(MB/s)

Bandwidth.

Throughput(IOPS)(IO/s)

Input/output operations per second.

Read Bandwidth(MB/s)

Read bandwidth.

Average Read I/O Size(KB)

Average read I/O size.

Read Throughput(IOPS)(IO/s)

Read operations per second.

Write Bandwidth(MB/s)

Write bandwidth.

Average Write I/O Size(KB)

Average write I/O size.

Write Throughput(IOPS)(IO/s)

Write operations per second.

Service Time(Excluding Queue Time)(ms)

Service time (excluding the queue time).

Read I/O Granularity Distribution: [0K,1K)(%)

Proportion of read I/Os with I/O size [0 KB, 1 KB).

Read I/O Granularity Distribution: [1K,2K)(%)

Proportion of read I/Os with I/O size [1 KB, 2 KB).

Read I/O Granularity Distribution: [2K,4K)(%)

Proportion of read I/Os with I/O size [2 KB, 4 KB).

Read I/O Granularity Distribution: [4K,8K)(%)

Proportion of read I/Os with I/O size [4 KB, 8 KB).

Read I/O Granularity Distribution: [8K,16K)(%)

Proportion of read I/Os with I/O size [8 KB, 16 KB).

Read I/O Granularity Distribution: [16K,32K)(%)

Proportion of read I/Os with I/O size [16 KB, 32 KB).

Read I/O Granularity Distribution: [32K,64K)(%)

Proportion of read I/Os with I/O size [32 KB, 64 KB).

Read I/O Granularity Distribution: [64K,128K)(%)

Proportion of read I/Os with I/O size [64 KB, 128 KB).

Read I/O Granularity Distribution: [128K,256K)(%)

Proportion of read I/Os with I/O size [128 KB, 256 KB).

Read I/O Granularity Distribution: [256K,512K)(%)

Proportion of read I/Os with I/O size [256 KB, 512 KB).

Read I/O Granularity Distribution: >= 512K(%)

Proportion of read I/Os with I/O size greater than or equal to 512 KB.

Write I/O Granularity Distribution: [0K,1K)(%)

Proportion of write I/Os with I/O size [0 KB, 1 KB).

Write I/O Granularity Distribution: [1K,2K)(%

Proportion of write I/Os with I/O size [1 KB, 2 KB).

Write I/O Granularity Distribution: [2K,4K)(%)

Proportion of write I/Os with I/O size [2 KB, 4 KB).

.Write I/O Granularity Distribution: [4K,8K)(%)

Proportion of write I/Os with I/O size [4 KB, 8 KB).

Write I/O Granularity Distribution: [8K,16K)(%).

Proportion of write I/Os with I/O size [8 KB, 16 KB).

Write I/O Granularity Distribution: [16K,32K)(%)

Proportion of write I/Os with I/O size [16 KB, 32 KB).

Write I/O Granularity Distribution: [32K,64K)(%)

Proportion of write I/Os with I/O size [32 KB, 64 KB).

Write I/O Granularity Distribution: [64K,128K)(%)

Proportion of write I/Os with I/O size [64 KB, 128 KB).

Write I/O Granularity Distribution: [128K,256K)(%)

Proportion of write I/Os with I/O size [128 KB, 256 KB).

Write I/O Granularity Distribution: [256K,512K)(%)

Proportion of write I/Os with I/O size [256 KB, 512 KB).

Write I/O Granularity Distribution: >= 512K(%)

Proportion of write I/Os with I/O size greater than or equal to 512 KB.

Average I/O Latency(ms)

Average I/O latency.

Max. I/O Latency(ms)

Maximum I/O latency.

Average Read I/O Latency(ms)

Average read I/O latency.

Average Write I/O Latency(ms)

Average write I/O latency.

Average IO Size

Average I/O size.

BE Reqs/sec

Number of back-end requests per second.

BE Read Reqs/sec

Number of back-end read requests per second.

BE MBs Read/sec

Back-end read traffic.

Max. I/O Latency(us)

Maximum I/O latency.

BE MBs transferred/sec

Back-end traffic.

BE Write Reqs/sec

Number of back-end write requests per second.

BE MBs Written/sec

Back-end write traffic.

% Read

Read ratio (%).

% Write

Write ratio (%).

BE Read Response Time(ms)

Back-end read response time.

BE Write Response Time(ms)

Back-end write response time.

BE Avg Response Time(ms)

Back-end average response time.

BE % Reads

Back-end read ratio (%).

BE % Writes

Back-end write ratio (%).

Average I/O Latency(us)

Average I/O latency.

Average Read I/O Latency(us)

Average read I/O latency.

Average Write I/O Latency(us)

Average write I/O latency.

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Updated: 2019-07-16

Document ID: EDOC1100049140

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