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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 disk

show performance disk

Function

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

Format

show performance disk [ disk_id=? ] [ disk_id_list=? ]

Parameters

Parameter

Description

Value

disk_id=?

ID of the disk whose performance statistics you need to collect.

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

disk_id_list=?

ID list of disks whose performance statistics you need to collect.

  • To obtain the value, run "show disk general".
  • Separate the IDs of disks with commas (,). Consecutive IDs can be represented by a hyphen (-). A maximum of 50 IDs can be queried.

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 I/O throughput of the disk in slot "0" of disk enclosure "CTE0.0".

admin:/>show performance disk disk_id=CTE0.0 
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.Complete SCSI commands per second 
40.Verify commands per second 
41.% Read 
42.% Write 
43.Max IOPS(IO/s) 
44.Average I/O Latency(us) 
45.Max. I/O Latency(us) 
46.Average Read I/O Latency(us) 
47.Average Write I/O Latency(us) 
48.The cumulative count of I/Os 
49.The cumulative count of data transferred in Kbytes 
50.The cumulative elapsed I/O time(ms) 
51.The cumulative count of all reads 
52.The cumulative count of data read in Kbytes(1024bytes = 1KByte) 
53.The cumulative count of all writes 
54.The cumulative count of data written in Kbytes                      
Input item(s) number separated by comma:5 
  Read Bandwidth (MB/s) : 11 

System Response

None

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Updated: 2019-07-12

Document ID: EDOC1000138390

Views: 226310

Downloads: 150

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