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Command Reference

OceanStor 18000 V3 Series V300R006

This document is applicable to OceanStor 18500 V3 and 18800 V3. Based on the CLI provided by the DeviceManager, this document describes how to use variouscommands classified by functions and how to set the CLI and manage the storage system throughthese 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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show performance elink

show performance elink

Function

The show performance elink command is used to query performance statistics on heterogeneous links. If you want to analyze the real-time performance statistics on heterogeneous links, run this command.

Format

show performance elink { link_id=? | link_id_list=? }

Parameters

Parameter

Description

Value

link_id=?

ID of the heterogeneous link whose performance statistics you need to collect.

To obtain the value, run the "show remote_device elink" command.

link_id_list=?

ID list of heterogeneous links whose performance statistics you need to collect.

  • To obtain the value, run the "show remote_device elink" command.
  • Separate the IDs of heterogeneous links with commas (,). Consecutive IDs can be represented by a hyphen (-). Only the same type (such as Fibre Channel or iSCSI) of heterogeneous links are supported. A maximum of 50 links can be displayed.

Level

Guest

Usage Guidelines

  • After this command is executed, performance data categories are displayed. You can enter the serial number before a category and press "Enter" to view the category of data. You can enter multiple serial numbers and use commas (,) to separate them.
  • Performance statistics will be updated in real time.
  • Typing "q" on the command line interface (CLI) exits the active performance statistics display.

Example

Query read I/Os statistics of link "268435456".

admin:/>show performance elink link_id=268435456 
0.Max. Bandwidth(MB/s) 
1.Usage Ratio(%) 
2.Queue Length 
3.Bandwidth(MB/s) / Block Bandwidth(MB/s) 
4.Throughput(IOPS)(IO/s) 
5.Read Bandwidth(MB/s) 
6.Average Read I/O Size(KB) 
7.Read Throughput(IOPS)(IO/s) 
8.Write Bandwidth(MB/s) 
9.Average Write I/O Size(KB) 
10.Write Throughput(IOPS)(IO/s) 
11.Service Time(Excluding Queue Time)(ms) 
12.Average I/O Latency(ms) 
13.Max. I/O Latency(ms) 
14.Average Read I/O Latency(ms) 
15.Average Write I/O Latency(ms) 
16.Average IO Size 
17.% Read 
18.% Write 
19.Max IOPS(IO/s) 
20.Failed IOs 
21.Failed IOs/sec 
22.Failed IO Ratio(%) 
23.Average I/O Latency(us)                                
24.Max. I/O Latency(us)                                   
25.Average Read I/O Latency(us)                           
26.Average Write I/O Latency(us)                          
27.The cumulative count of I/Os                           
28.The cumulative count of data transferred in Kbytes     
29.The cumulative count of all writes                     
30.The cumulative count of data written in Kbytes 
Input item(s) number separated by comma:30 
  The cumulative count of data written in Kbytes : 0

System Response

None

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Updated: 2019-07-12

Document ID: EDOC1000138390

Views: 227570

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