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Command Reference 10

OceanStor 18500 V3 and 18800 V3 Mission Critical Storage System V300R003

"Based on the CLI, 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

Function

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.

Format

show performance host host_id=?

show performance host host_id_list=?

Parameters

Parameter

Description

Value

host_id=? ID of a host.

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

host_id_list=? ID list of hosts.
  • To obtain the value, run "show host general".
  • Separate the host IDs with commas (,) or hyphens (-).

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 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 seperated by comma:7
 
  Read Throughput(IOPS) (IO/s) : 35

System Response

None

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Updated: 2019-07-22

Document ID: EDOC1000084078

Views: 317710

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