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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 link

show performance link


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


show performance link link_id=?

show performance link link_id_list=?






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

To obtain the value, run "show remote_device link".


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

  • To obtain the value, run "show remote_device link".
  • Separate the link IDs with commas (,) or hyphens (-).
  • A maximum of 50 IDs can be queried.



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" display 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.


Query the performance statistics on the read I/Os for link whose ID is "0".

admin:/>show performance link link_id=0  
0.Queue Length                                            
2.Average Read I/O Size(KB)                               
3.Read Throughput(IOPS)(IO/s)                             
4.Average Write I/O Size(KB)                              
5.Write Throughput(IOPS)(IO/s)                            
6.Service Time(Excluding Queue Time)(ms)                 
7.Read Bandwidth(MB/s)                                   
8.Write Bandwidth(MB/s)                                   
9.Average IO Size(KB)                                     
10.% Read                                                 
11.% Write                                                
12.Max IOPS(IO/s)                                         
13.Failed IOs                                             
14.Failed IOs/sec                                         
15.Failed IO Ratio(%)                                     
16.Average I/O Latency(us)                                
17.Max. I/O Latency(us)                                   
18.Average Read I/O Latency(us)                           
19.Average Write I/O Latency(us)                          
20.Max. Bandwidth(MB/s)                                   
21.Bandwidth(MB/s) / Block Bandwidth(MB/s)                
22.Total Bandwidth(KB/s)                                  
23.Sending bandwidth for replication(KB/s)                
24.Receiving bandwidth for replication(KB/s)              
25.The cumulative count of I/Os                          
26.The cumulative count of data transferred in Kbytes     
27.The cumulative count of all writes                     
28.The cumulative count of data written in Kbytes 
Input item(s) number separated by comma:0 
  Queue Length : 2

System Response


Updated: 2019-07-16

Document ID: EDOC1100049140

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