ONTAP 9.12.1 commands

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  • ONTAP 9.12.1 commands(CA08871-263en.pdf)
  • statistics cache flash-pool show

    Flash pool throughput metrics

    Availability: This command is available to cluster and Vserver administrators at the admin privilege level.

    Description

    This command continuously displays performance data for flash pool caches at a regular interval. The command output displays data in the following columns:

    • Aggregate - aggregate name.

    • Vserver - vserver name.

    • Volume - volume name.

    • Read Hit - percent of IOs serviced from a cache level.

    • Write Hit - percent of IOs serviced from a cache level.

    • Cache Used - SSD cache blocks used.

    • Read Blocks - read blocks.

    • Write Blocks - write blocks.

    • Rejects - cache rejects.

    Parameters

    [-aggregate <text>] - Aggregate

    Selects the aggregate for which you want to display performance data.

    [-vserver <vserver name>] - Vserver

    Selects the vserver for which you want to display performance data.

    [-volume <text>] - Volume

    Selects the volume for which you want to display performance data.

    [-sort-key <text>] - Column to Sort By

    If this parameter is specified, the command displays statistics sorted by the specified column.

    -interval <integer> - Interval

    Specifies, in seconds, the interval between statistics updates. The default setting is 5 seconds.

    -iterations <integer> - Iterations

    Specifies the number of iterations the command runs before terminating. The default setting is 1. If the number is 0 (zero), the command continues to run until you interrupt it by pressing Ctrl-C.

    -max <integer> - Maximum Number of Instances

    Specifies the maximum number of flash pools to display. The default setting is 25.

    Examples

    The following example displays flash pool statistics:

    cluster1::> statistics cache flash-pool show
    cluster1 : 12/31/2013 16:00:04
    Read Write
                                   Hit   Hit       Cache    Read   Write
       Aggregate  Vserver  Volume  (%)   (%)        Used  Blocks  Blocks Rejects
     ----------- -------- ------- ---- ----- ----------- ------- ------- -------
           aggr1        - -total-    0     0           0       0       0       0
           aggr2      vs1    vol1    0     0           0       0       0       0
    [...]
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