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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 disk_domain

show performance disk_domain


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


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





disk_domain_id=? ID of the disk domain whose performance statistics you need to collect.

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

disk_domain_id_list=? ID list of disk domains whose performance statistics you need to collect.
  • To obtain the value, run "show disk general".
  • Separate the IDs of disk domains with commas (,). Consecutive IDs can be represented by a hyphen (-).



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.
  • "disk_domain_id" is mutually exclusive with "disk_domain_id_list".


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

admin:/>show performance disk_domain disk_domain_id=0
0.Usage Ratio (%)
1.Queue Length
2.Bandwidth (MB/s) / Block Bandwidth (MB/s)
3.Throughput(IOPS) (IO/s)
4.Read Bandwidth (MB/s)
5.Average Read I/O Size (KB)
6.Read Throughput(IOPS) (IO/s)
7.Write Bandwidth (MB/s)
8.Average Write I/O Size (KB)
9.Write Throughput(IOPS) (IO/s)
10.Service Time (Excluding Queue Time) (ms)
11.Read I/O Granularity Distribution: [0K,1K) (%)
12.Read I/O Granularity Distribution: [1K,2K) (%)
13.Read I/O Granularity Distribution: [2K,4K) (%)
14.Read I/O Granularity Distribution: [4K,8K) (%)
15.Read I/O Granularity Distribution: [8K,16K) (%)
16.Read I/O Granularity Distribution: [16K,32K) (%)
17.Read I/O Granularity Distribution: [32K,64K) (%)
18.Read I/O Granularity Distribution: [64K,128K) (%)
19.Read I/O Granularity Distribution: [128K,256K) (%)
20.Read I/O Granularity Distribution: [256K,512K) (%)
21.Read I/O Granularity Distribution: >= 512K (%)
22.Write I/O Granularity Distribution: [0K,1K) (%)
23.Write I/O Granularity Distribution: [1K,2K) (%)
24.Write I/O Granularity Distribution: [2K,4K) (%)
25.Write I/O Granularity Distribution: [4K,8K) (%)
26.Write I/O Granularity Distribution: [8K,16K) (%)
27.Write I/O Granularity Distribution: [16K,32K) (%)
28.Write I/O Granularity Distribution: [32K,64K) (%)
29.Write I/O Granularity Distribution: [64K,128K) (%)
30.Write I/O Granularity Distribution: [128K,256K) (%)
31.Write I/O Granularity Distribution: [256K,512K) (%)
32.Write I/O Granularity Distribution: >= 512K (%)
33.Average I/O Latency (ms)
34.Max. I/O Latency (ms)
35.Average Read I/O Latency(ms)
36.Average Write I/O Latency(ms)
37.Average IO Size
38.BE Reqs/sec
39.BE Read Reqs/sec
40.BE Write Reqs/sec
41.BE MBs transferred/sec
42.BE MBs Read/sec
43.BE MBs Written/sec
44.% Read
45.% Write
46.BE Read Response Time (ms)
47.BE Write Response Time (ms)
48.BE Avg Response Time (ms)
49.BE % Reads
50.BE % Writes
51.Average I/O Latency(us)                               
52.Max. I/O Latency(us)                                  
53.Average Read I/O Latency(us)                          
54.Average Write I/O Latency(us) 
Input item(s) number seperated by comma:3
Throughput(IOPS) (IO/s) : 1071

System Response


Updated: 2019-07-22

Document ID: EDOC1000084078

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