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Filtering the statistics

You can use filters to help you track resource utilization for a specific object, or narrow down the amount of statistics that are collected. For example, collecting statistics from 30,000 LUNs in a system could take a long time to complete, and you could narrow down the amount of statistics that are collected and the time it takes to complete by filtering statistics by volume name.

About this task

The examples in this procedure show how you can filter performance data by volume.

Steps

  1. Use the statistics volume show command to view performance data for a volume.
    The output includes the most important counters and sorts the results by the most active instances of the object you specify.
    Example
    In this example, the output shows the volumes reporting the highest IOP values:
    cluster1::> statistics volume show                                      
    cluster1 : 12/31/2013 16:00:04                                                                                                        
                                                                                                                                                
                             *Total Read Write Other  Read Write Latency                                    
    Volume Vserver Aggregate    Ops  Ops   Ops   Ops (Bps) (Bps)    (us)                                                 
    ------ ------- --------- ------ ---- ----- ----- ----- ----- -------                                                                 
    vol0       -   aggr0         58   13    15    29 9585   3014      39                                                                 
    vol1       -   aggr0_n0      56    0    11    45 8192  28826      47
    
  2. Filter the output by volume name.
    Example
    In this example, the output shows statistics for vol1:
    cluster1::> statistics volume show –volume vol1                                            
    cluster1 : 12/31/2013 16:00:04                                                                                                            
                                                                                                                                                
                             *Total Read Write Other   Read Write Latency                                                                    
    Volume Vserver Aggregate    Ops  Ops   Ops   Ops  (Bps) (Bps)    (us)                                                            
    ------ ------- --------- ------ ---- ----- ----- ------ ----- -------                                                                                                                          
    vol1       -   aggr0_n0      56    0    11    45   8192 28826      47