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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 controller

show performance controller


The show performance controller command is used to query the performance statistics on a controller of the storage system. Run this command to analyze the performance statistics on a controller in real time.


show performance controller controller_id=? [ mode=? ] [ times=? ]

show performance controller controller_id_list=? [ mode=? ] [ times=? ]






ID of a controller.

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


ID list of controllers.

  • To obtain the value, run "show controller general".
  • Separate the controller IDs with commas (,).


Mode name.

To obtain the value, run the "show performance mode" command.


Display times.

The value must be an integer from 1 to 65535.



Usage Guidelines

  • You need to specify the controllers whose statistics you want to query.
  • If parameter "times" is not specified, the performance data will be refreshed in real time until you press q to exit. If parameter "times" is specified, the performance data is refreshed for the specified times and then the system automatically exits the performance data query.
  • If parameter "mode" is not specified, the system will prompt you to enter the serial numbers of performance data types and press Enter to view data of specified types. Use commas (,) to separate multiple serial numbers. Performance data of the specified types will be refreshed in real time.
  • If parameter "mode" is specified, performance data in the specified mode will be refreshed in real time (you can run the "show performance mode mode=?" command to view performance data types).


  • Query the performance statistics on the read I/Os for controller "0A".
    admin:/>show performance controller controller_id=0A 
    0.Max. Bandwidth(MB/s) 
    1.Queue Length 
    2.Bandwidth(MB/s) / Block Bandwidth(MB/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.CPU Usage(%) 
    33.Memory Usage(%) 
    34.Percentage of Cache Flushes to Write Requests(%) 
    35.Cache Flushing Bandwidth(MB/s) 
    36.Read Cache Hit Ratio(%) 
    37.Write Cache Hit Ratio(%) 
    38.Cache Read Usage(%) 
    39.Cache Write Usage(%) 
    40.Average IO Size(KB) 
    41.% Read 
    42.% Write 
    43.% Hit 
    44.Max IOPS(IO/s) 
    45.Cache Water(%) 
    46.Service Time(Excluding Queue Time)(us) 
    47.Average I/O Latency(us) 
    48.Max. I/O Latency(us) 
    49.Average Read I/O Latency(us) 
    50.Average Write I/O Latency(us) 
    51.NFS operation count per second 
    52.Max. Read I/O Size(KB) 
    53.Max. Write I/O Size(KB) 
    54.Max. I/O Size(KB) 
    55.The cumulative count of I/Os 
    56.The cumulative count of data transferred in Kbytes 
    57.The cumulative elapsed I/O time(ms) 
    58.The cumulative count of all reads 
    59.The cumulative count of all read cache hits(Reads from Cache) 
    60.The cumulative count of data read in Kbytes(1024bytes = 1KByte) 
    61.The cumulative count of all writes 
    62.The cumulative count of Write Cache Hits (Writes that went directly to Cache) 
    63.The cumulative count of data written in Kbytes 
    64.Cache page utilization(%) 
    65.Cache chunk utilization(%) 
    66.ISCSI IOPS (IO/s) 
    67.CIFS operation count per second 
    68.Disk Max. Usage(%) 
    69.Total Disk IOPS(IO/s) 
    70.READ Disk IOPS(IO/s) 
    71.WRITE Disk IOPS(IO/s) 
    72.SCSI IOPS (IO/s) 
    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:0 
    Max. Bandwidth(MB/s) : 0
  • Query performance statistics of controller 0B in controller_san mode once.
    admin:/>show performance controller controller_id=0B mode=controller_san times=1 
      CPU Usage(%)        : 5  
      Throughput(IOPS)(IO/s) : 0  
      SCSI IOPS (IO/s)       : 0  
      ISCSI IOPS (IO/s)      : 0  
      Total Disk IOPS(IO/s)  : 0

System Response


Updated: 2019-07-16

Document ID: EDOC1100049140

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