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Command Reference for Block

OceanStor Dorado V3 Series V300R002

This document is applicable to OceanStor Dorado3000 V3, Dorado5000 V3, Dorado6000 V3 and Dorado18000 V3. Based on the CLI provided by the 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.
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show performance lun

show performance lun

Function

The show performance lun command is used to query performance statistics on a logical unit number (LUN). Run this command to analyze the performance statistics on a LUN in real time.

Format

show performance lun lun_id=?

show performance lun lun_id_list=?

Parameters

Parameter

Description

Value

lun_id=?

ID of a LUN on which you want to query performance statistics.

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

lun_id_list=?

ID list of LUNs on which you want to query performance statistics.

  • To obtain the value, run "show lun general".
  • Separate LUN IDs by commas (,), or the ID range by hyphens (-).
  • A maximum of 50 IDs can be queried.

Level

Guest

Usage Guidelines

  • You will be prompted with optional performance statistics categories upon running this command. In this condition, typing a number or multiple numbers (separated by commas) for the selected categories and pressing "Enter" displays the performance statistics for those categories.
  • 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 for LUN "1".

admin:/>show performance lun lun_id=1 
0.Max. Bandwidth(MB/s)                                                               
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.Read I/O Granularity Distribution: [0K,1K)(%)                                     
11.Read I/O Granularity Distribution: [1K,2K)(%)                                     
12.Read I/O Granularity Distribution: [2K,4K)(%)                                     
13.Read I/O Granularity Distribution: [4K,8K)(%)                                     
14.Read I/O Granularity Distribution: [8K,16K)(%)                                 
15.Read I/O Granularity Distribution: [16K,32K)(%)                                   
16.Read I/O Granularity Distribution: [32K,64K)(%)                                   
17.Read I/O Granularity Distribution: [64K,128K)(%)                                  
18.Read I/O Granularity Distribution: [128K,256K)(%)                                 
19.Read I/O Granularity Distribution: [256K,512K)(%)                                 
20.Read I/O Granularity Distribution: >= 512K(%)                                     
21.Write I/O Granularity Distribution: [0K,1K)(%)                                    
22.Write I/O Granularity Distribution: [1K,2K)(%)                                    
23.Write I/O Granularity Distribution: [2K,4K)(%)                                    
24.Write I/O Granularity Distribution: [4K,8K)(%)                                    
25.Write I/O Granularity Distribution: [8K,16K)(%)                                   
26.Write I/O Granularity Distribution: [16K,32K)(%)                                  
27.Write I/O Granularity Distribution: [32K,64K)(%)                                  
28.Write I/O Granularity Distribution: [64K,128K)(%)                                 
29.Write I/O Granularity Distribution: [128K,256K)(%)                                
30.Write I/O Granularity Distribution: [256K,512K)(%)                                
31.Write I/O Granularity Distribution: >= 512K(%)                                    
32.Read Cache Hit Ratio(%)                                                           
33.Write Cache Hit Ratio(%)                                                             
34.Average IO Size(KB)                                                               
35.% Read                                                                            
36.% Write                                                                           
37.% Hit                                                                             
38.Max IOPS(IO/s)                                                                    
39.Service Time(Excluding Queue Time)(us)                                            
40.Average I/O Latency(us)                                                           
41.Max. I/O Latency(us)                                                              
42.Average Read I/O Latency(us)                                                      
43.Average Write I/O Latency(us)                                                     
44.Read I/O Latency Distribution: [0us,500us)(%)                                     
45.Read I/O Latency Distribution: [500us,1ms)(%)                                     
46.Read I/O Latency Distribution: [1ms,2ms)(%)                                       
47.Read I/O Latency Distribution: [2ms,5ms)(%)                                       
48.Read I/O Latency Distribution: [5ms,10ms)(%)                                      
49.Read I/O Latency Distribution: >= 10ms(%)                                         
50.Write I/O Latency Distribution: [0us,500us)(%)                                    
51.Write I/O Latency Distribution: [500us,1ms)(%)                                    
52.Write I/O Latency Distribution: [1ms,2ms)(%)                                      
53.Write I/O Latency Distribution: [2ms,5ms)(%)                                      
54.Write I/O Latency Distribution: [5ms,10ms)(%)                                     
55.Write I/O Latency Distribution: >= 10ms(%)                                        
56.Read and Write I/O Latency Distribution: [0us,500us)(%)                           
57.Read and Write I/O Latency Distribution: [500us,1ms)(%)                           
58.Number of failed read I/Os                                                        
59.Number of failed write I/Os                                                       
60.Max. Read I/O Size(KB)                                                            
61.Max. Write I/O Size(KB)                                                           
62.Max. I/O Size(KB)                                                                 
63.The cumulative count of I/Os                                                      
64.The cumulative count of data transferred in Kbytes                                
65.The cumulative elapsed I/O time(ms)                                               
66.The cumulative count of all reads                                                 
67.The cumulative count of all read cache hits(Reads from Cache)                     
68.The cumulative count of data read in Kbytes(1024bytes = 1KByte)                   
69.The cumulative count of all writes                                                
70.The cumulative count of Write Cache Hits (Writes that went directly to Cache)     
71.The cumulative count of data written in Kbytes                                    
72.Cache page preservation(%)  
73.Unmap Command Bandwidth (MB/s) 
74.Unmap Command IOPS (IO/s) 
75.Avg. Unmap Command Size (KB) 
76.Avg. Unmap Command Response Time (us) 
77.WRITE SAME Command Bandwidth (MB/s) 
78.WRITE SAME Command IOPS (IO/s) 
79.Avg. WRITE SAME Command Size (KB) 
80.Avg. WRITE SAME Command Response Time (us) 
81.Full Copy Read Request Bandwidth (MB/s) 
82.Full Copy Read Request IOPS (IO/s) 
83.Avg. Full Copy Read Request Size (KB) 
84.Avg. Full Copy Read Request Response Time (us) 
85.Full Copy Write Request Bandwidth (MB/s) 
86.Full Copy Write Request IOPS (IO/s) 
87.Avg. Full Copy Write Request Size (KB) 
88.Avg. Full Copy Write Request Response Time (us) 
89.ODX Read Request Bandwidth (MB/s) 
90.ODX Read Request IOPS (IO/s) 
91.Avg. ODX Read Request Size (KB) 
92.Avg. ODX Read Request Response Time (us) 
93.ODX Write Request Bandwidth (MB/s) 
94.ODX Write Request IOPS (IO/s) 
95.Avg. ODX Write Request Size (KB) 
96.Avg. ODX Write Request Response Time (us) 
97.ODX Write Zero Request Bandwidth (MB/s) 
98.ODX Write Zero Request IOPS (IO/s) 
99.Avg. ODX Write Zero Request Size (KB) 
100.Avg. ODX Write Zero Request Response Time (us) 
Input item(s) number separated by comma:7 
Write Bandwidth(MB/s) : 0 

System Response

None

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Updated: 2019-07-16

Document ID: EDOC1100049140

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