application commands
qos statistics workload characteristics show
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Display QoS workload characterization
Availability: This command is available to cluster administrators at the admin privilege level.
Description
The qos statistics workload characteristics show command displays data that characterizes the behavior of QoS workloads.
The command displays the following data:
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The QoS workload name (Workload)
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The QoS workload ID (ID)
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Input/output operations performed 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 QoS workloads. Other columns in this row are either totals or averages.
Parameters
[-node {<nodename>|local}]- Node-
Selects the QOS workloads that match this parameter value. If you do not specify this parameter, the command displays data for the entire cluster.
[-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.
- {
[-rows <integer>]- Number of Rows in the Output -
Specifies the number of busiest QoS policy groups to display. Valid values are from 1 to 20. The default value is 10.
[-policy-group <text>]- QoS Policy Group Name-
Selects the QoS workloads that belong to the QoS policy group specified by this parameter value. If you do not specify this parameter, the command displays data for all QoS workloads.
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[-workload <text>]- QoS Workload Name -
Selects the QoS workload that match this parameter value. If you do not specify this parameter, the command displays data for all QoS workloads.
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[-workload-id <integer>]- QoS Workload ID } -
Selects the QoS workload that match the QoS workload ID specified by this parameter value.
[-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 workload characteristics show -iterations 100 -rows 4 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 _Scan_Besteff.. 101 23 0KB/s 0B 0% 0 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 _Scan_Besteff.. 101 25 0KB/s 0B 0% 0 -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 _Scan_Besteff.. 101 20 0KB/s 0B 0% 0
The example above displays characteristics for the 4 QoS workloads with the highest IOPS and it refreshes the display 100 times before terminating.
cluster1::> qos statistics workload characteristics show -iterations 100 -rows 2 -policy-group pg1
Workload ID IOPS Throughput Request size Read Concurrency
--------------- ------ -------- ---------------- ------------ ---- -----------
-total- - 243 546.86KB/s 2307B 61% 1
file-test1_a-.. 6437 34 136.00KB/s 4096B 100% 0
file-test1_c-.. 5078 33 133.33KB/s 4096B 100% 0
-total- - 310 3.09MB/s 10428B 55% 1
file-test1_a-.. 6437 36 142.67KB/s 4096B 100% 0
file-test1_b-.. 9492 35 138.67KB/s 4096B 100% 0
-total- - 192 575.71KB/s 3075B 71% 1
file-test1-wi.. 7872 39 157.33KB/s 4096B 100% 0
file-test1_c-.. 5078 38 153.33KB/s 4096B 100% 0
The example above displays the characteristics for the 2 QoS workloads belonging to QoS policy group pg1 with the highest IOPS and it refreshes the display 100 times before terminating.
cluster1::> qos statistics workload characteristics show -iterations 100 -workload-id 9492
Workload ID IOPS Throughput Request size Read Concurrency
--------------- ------ -------- ---------------- ------------ ---- -----------
-total- - 737 2.14MB/s 3045B 79% 1
file-test1_b-.. 9492 265 1058.67KB/s 4096B 100% 0
-total- - 717 4.26MB/s 6235B 80% 1
file-test1_b-.. 9492 272 1086.67KB/s 4096B 100% 1
-total- - 623 2.50MB/s 4202B 86% 0
file-test1_b-.. 9492 263 1050.67KB/s 4096B 100% 0
-total- - 595 2.11MB/s 3712B 89% 0
file-test1_b-.. 9492 266 1064.00KB/s 4096B 100% 0
The example above displays the characteristics for the QoS workload with QoS workload ID 9492 and it refreshes the display 100 times before terminating.