qos statistics volume characteristics show
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Display volume characteristics
Availability: This command is available to cluster administrators at the admin privilege level.
Description
The qos statistics volume characteristics show command displays data that characterizes the behavior of volumes.
The command displays the following data:
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QoS volume name (Workload)
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QoS workload ID (ID)
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Input/output operations per second (IOPS)
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Throughput achieved in kilobytes per second (KB/s) or megabytes per second (MB/s) as appropriate (Throughput)
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Request size in bytes (B) (Request size)
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Read percentage from total IOPS (Read)
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Concurrency, which indicates the number of concurrent users generating the I/O traffic (Concurrency)
The results displayed per iteration are sorted by IOPS. Each iteration starts with a row that displays the total IOPS used across all volumes. Other columns in this row are either totals or averages.
Parameters
[-node {<nodename>|local}]- Node-
Selects the volumes that match this parameter value. If you do not specify this parameter, the command displays data for the entire cluster.
- {
[-rows <integer>]- Number of Rows in the Output -
Specifies the number of busiest QoS policy groups to display. The default setting is 10. The allowed range of values is 1 to 20.
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-vserver <vserver name>- Vserver Name -
Specifies the Vserver to which the volume belongs.
-volume <volume name>- Volume Name }-
Selects the characteristic data that match this parameter value. Enter a complete volume name or press the <Tab> key to complete the name. Wildcard query characters are not supported.
[-iterations <integer>]- Number of Iterations-
Specifies the number of times the display is refreshed before terminating. If you do not specify this parameter, the command iterates until interrupted by Ctrl-C.
[-refresh-display {true|false}]- Toggle Screen Refresh Between Each Iteration-
Specifies the display style. If true, the command clears the display after each data iteration. If false, the command displays each data iteration below the previous one. The default is false.
[-show-flexgroup-as-constituents {true|false}]- Display Flexgroups as Constituents-
If the parameter is specified and if the value is true, it will display data for FlexVols and Flexgroup Constituents. Otherwise it will display data for FlexVols and Flexgroups.
Examples
cluster1::> qos statistics volume characteristics show -iterations 100 -rows 3 Workload ID IOPS Throughput Request size Read Concurrency --------------- ------ -------- ---------------- ------------ ---- ----------- -total- - 68 176.00KB/s 2650B 7% 8 vs1vol0-wid102 102 24 96.00KB/s 4096B 20% 13 vol_1-wid103 103 20 80.00KB/s 4096B 0% 12 vol_2-wid104 104 1 0KB/s 0B 0% 0 -total- - 157 528.00KB/s 3443B 3% 4 vol_2-wid104 104 48 192.00KB/s 4096B 0% 9 vol_1-wid103 103 43 172.00KB/s 4096B 0% 0 vs1vol0-wid102 102 41 164.00KB/s 4096B 14% 6 -total- - 274 1016.00KB/s 3797B 2% 2 vs1vol0-wid102 102 85 340.00KB/s 4096B 8% 4 vol_2-wid104 104 85 340.00KB/s 4096B 0% 1 vol_1-wid103 103 84 336.00KB/s 4096B 0% 3
The example above displays characteristics for the 3 volumes with the highest IOPS and it refreshes the display 100 times before terminating.
cluster1::> qos statistics volume characteristics show -vserver vs0 -volume vs0_vol0 -iterations 100 Workload ID IOPS Throughput Request Size Read Concurrency --------------- ------ -------- ---------------- ------------ ---- ----------- -total- - 1567 783.33KB/s 512Kb 90% 2 vs0_vol0-wid1.. 15658 785 392.33KB/s 512Kb 89% 1 -total- - 1521 760.50KB/s 512Kb 90% 1 vs0_vol0-wid1.. 15658 982 491.17KB/s 512Kb 90% 0 -total- - 1482 741.00KB/s 512Kb 89% 0 vs0_vol0-wid1.. 15658 945 472.50KB/s 512Kb 90% 0 -total- - 1482 741.00KB/s 512Kb 89% 0 vs0_vol0-wid1.. 15658 945 472.50KB/s 512Kb 90% 0 -total- - 1702 850.83KB/s 512Kb 90% 0 vs0_vol0-wid1.. 15658 1018 509.00KB/s 512Kb 90% 0
The example above displays characteristics for volume vs0_vol0 in Vserver vs0 and it refreshes the display 100 times before terminating.