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Command Reference

OceanStor 2800 V3 V300R006

This document is applicable to OceanStor 2800 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 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=?






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

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


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: 2019-07-12

Document ID: EDOC1000138382

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