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Command Reference 10

OceanStor 5300 V3, 5500 V3, 5600 V3, 5800 V3, and 6800 V3 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 lun

show performance lun


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


show performance lun lun_id=?

show performance lun lun_id_list=?





lun_id=? ID of the LUN whose performance statistics you need to collect.

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

lun_id_list=? ID list of LUNs whose performance statistics you need to collect.
  • To obtain the value, run "show lun general".
  • Separate the IDs of LUNs 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.


Query the read I/Os of LUN "1".

admin:/>show performance lun lun_id=1
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.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 count of data read in Kbytes(1024bytes = 1KByte)                  
73.The cumulative count of all writes                                               
74.The cumulative count of Write Cache Hits (Writes that went directly to Cache)    
75.The cumulative count of data written in Kbytes                                   
76.Cache page preservation(%)                                                       
77.Cache chunk preservation(%) 
Input item(s) number seperated by comma:7
Read Throughput(IOPS) (IO/s) : 7

System Response


Updated: 2019-07-22

Document ID: EDOC1000084195

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