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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 storage systems. It describes hardware installation of those storage systems for helping you easily and quickly finish the installation.

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show performance lun

show performance lun


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


show performance lun lun_id=?

show performance lun lun_id_list=?





lun_id=? ID of a LUN whose performance statistics you want to query.

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

lun_id_list=? ID list of LUNs whose performance statistics you want to query.
  • To obtain the value, run "show lun general" without parameters.
  • Separate multiple IDs with commas (,). Consecutive IP addresses can be represented by a hyphen (-).
  • A maximum of 50 IDs can be queried.



Usage Guidelines

  • After this command is executed, performance data categories are displayed. You need to type the serial numbers before categories and press "Enter" to view the specific categories of performance data (If you need to type multiple categories, use commas to separate them).
  • Performance statistics is updated in real time.
  • You can type "q" on the command line interface (CLI) to exit the page that shows performance statistics.


Query traffic statistics on read I/Os of LUN "1".

admin:/>show performance lun lun_id=0
0.Max. Bandwidth(MB/s)                                                              
1.Usage Ratio(%)                                                                    
2.Queue Length                                                                      
3.Bandwidth(MB/s) / Block Bandwidth(MB/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.Full-stripe Write Request                                                        
37.Prefetch Rate(%)                                                                 
38.Read Cache Hit Ratio(%)                                                          
39.Write Cache Hit Ratio(%)                                                         
40.Average Read I/O Latency(ms)                                                     
41.Average Write I/O Latency(ms)                                                    
42.Read I/O Latency Distribution: [10ms,20ms)(%)                                    
43.Read I/O Latency Distribution: [20ms,50ms)(%)                                    
44.Read I/O Latency Distribution: [50ms,100ms)(%)                                   
45.Read I/O Latency Distribution: [100ms,200ms)(%)                                  
46.Read I/O Latency Distribution: >= 200ms(%)                                       
47.Write I/O Latency Distribution: [10ms,20ms)(%)                                   
48.Write I/O Latency Distribution: [20ms,50ms)(%)                                   
49.Write I/O Latency Distribution: [50ms,100ms)(%)                                  
50.Write I/O Latency Distribution: [100ms,200ms)(%)                                 
51.Write I/O Latency Distribution: >= 200ms(%)                                      
52.Average IO Size                                                                  
53.% Read                                                                           
54.% Write                                                                          
55.% Hit                                                                            
56.Max IOPS(IO/s)                                                                   
57.Average I/O Latency(us)                                                          
58.Max. I/O Latency(us)                                                             
59.Average Read I/O Latency(us)                                                     
60.Average Write I/O Latency(us)                                                    
61.Read I/O Latency Distribution: [5ms,10ms)(%)                                     
62.Write I/O Latency Distribution: [5ms,10ms)(%)                                    
63.Read I/O Latency Distribution: [0ms,5ms)(%)                                      
64.Write I/O Latency Distribution: [0ms,5ms)(%)                                     
65.Number of failed read I/Os                                                       
66.Number of failed write I/Os                                                      
67.The cumulative count of I/Os                                                     
68.The cumulative count of data transferred in Kbytes                               
69.The cumulative elapsed I/O time(ms)                                              
70.The cumulative count of all reads                                                
71.The cumulative count of all read cache hits(Reads from Cache)                    
72.The cumulative elapsed time for all Read I/Os for all cumulative Read I/Os       
73.The cumulative count of data read in Kbytes(1024bytes = 1KByte)                  
74.The cumulative count of all writes                                               
75.The cumulative count of Write Cache Hits (Writes that went directly to Cache)    
76.The cumulative elapsed time for all Write I/Os for all cumulative Writes         
77.The cumulative count of data written in Kbytes                                   
78.Cache page preservation(%)                                                       
79.Cache chunk preservation(%)                                                      
80.Unmap Command Bandwidth (MB/s)
81.Unmap Command IOPS (IO/s)
82.Avg. Unmap Command Size (KB)
83.Avg. Unmap Command Response Time (us)
84.WRITE SAME Command Bandwidth (MB/s)
85.WRITE SAME Command IOPS (IO/s)
86.Avg. WRITE SAME Command Size (KB)
87.Avg. WRITE SAME Command Response Time (us)
88.Full Copy Read Request Bandwidth (MB/s)
89.Full Copy Read Request IOPS (IO/s)
90.Avg. Full Copy Read Request Size (KB)
91.Avg. Full Copy Read Request Response Time (us)
92.Full Copy Write Request Bandwidth (MB/s)
93.Full Copy Write Request IOPS (IO/s)
94.Avg. Full Copy Write Request Size (KB)
95.Avg. Full Copy Write Request Response Time (us)
96.ODX Read Request Bandwidth (MB/s)
97.ODX Read Request IOPS (IO/s)
98.Avg. ODX Read Request Size (KB)
99.Avg. ODX Read Request Response Time (us)
100.ODX Write Request Bandwidth (MB/s)
101.ODX Write Request IOPS (IO/s)
102.Avg. ODX Write Request Size (KB)
103.Avg. ODX Write Request Response Time (us)
104.ODX Write Zero Request Bandwidth (MB/s)
105.ODX Write Zero Request IOPS (IO/s)
106.Avg. ODX Write Zero Request Size (KB)
107.Avg. ODX Write Zero Request Response Time (us)
Input item(s) number separated by comma:7
  Read Throughput(IOPS)(IO/s) : 2857

System Response


Updated: 2020-01-17

Document ID: EDOC1000181601

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