statistics cache flash-pool show
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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:
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Aggregate - aggregate name.
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Vserver - vserver name.
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Volume - volume name.
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Read Hit - percent of IOs serviced from a cache level.
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Write Hit - percent of IOs serviced from a cache level.
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Cache Used - SSD cache blocks used.
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Read Blocks - read blocks.
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Write Blocks - write blocks.
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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 Pool aggregates 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
[...]