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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       
[...]