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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 provided by 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. 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 host

show performance host


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


show performance host host_id=?

show performance host host_id_list=?






ID of a host.

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


ID list of hosts.

  • To obtain the value, run "show host general".
  • Separate the host 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. Type a number or multiple numbers separated by commas (,) for the selected categories and press "Enter" to display the performance statistics for those categories.
  • Performance statistics will be updated in real time.
  • Typing "q" exits the performance statistics display.


Query the performance statistics on the read I/Os of host "0".

admin:/>show performance host host_id=0 
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.Read I/O Granularity Distribution: [0K,1K) (%) 
13.Read I/O Granularity Distribution: [1K,2K) (%) 
14.Read I/O Granularity Distribution: [2K,4K) (%) 
15.Read I/O Granularity Distribution: [4K,8K) (%) 
16.Read I/O Granularity Distribution: [8K,16K) (%) 
17.Read I/O Granularity Distribution: [16K,32K) (%) 
18.Read I/O Granularity Distribution: [32K,64K) (%) 
19.Read I/O Granularity Distribution: [64K,128K) (%) 
20.Read I/O Granularity Distribution: [128K,256K) (%) 
21.Read I/O Granularity Distribution: [256K,512K) (%) 
22.Read I/O Granularity Distribution: >= 512K (%) 
23.Write I/O Granularity Distribution: [0K,1K) (%) 
24.Write I/O Granularity Distribution: [1K,2K) (%) 
25.Write I/O Granularity Distribution: [2K,4K) (%) 
26.Write I/O Granularity Distribution: [4K,8K) (%) 
27.Write I/O Granularity Distribution: [8K,16K) (%) 
28.Write I/O Granularity Distribution: [16K,32K) (%) 
29.Write I/O Granularity Distribution: [32K,64K) (%) 
30.Write I/O Granularity Distribution: [64K,128K) (%) 
31.Write I/O Granularity Distribution: [128K,256K) (%) 
32.Write I/O Granularity Distribution: [256K,512K) (%) 
33.Write I/O Granularity Distribution: >= 512K (%) 
34.Average I/O Latency (ms) 
35.Max. I/O Latency (ms) 
36.Average Read I/O Latency(ms) 
37.Average Write I/O Latency(ms) 
38.Average IO Size 
39.% Read 
40.% Write 
41.Max IOPS(IO/s) 
42.Average I/O Latency(us) 
43.Max. I/O Latency(us) 
44.Average Read I/O Latency(us) 
45.Average Write I/O Latency(us) 
Input item(s) number separated by comma:7 

  Read Throughput(IOPS) (IO/s) : 35

System Response


Updated: 2019-09-02

Document ID: EDOC1000181601

Views: 322257

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