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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:

  • The QoS workload name (Workload)

  • The QoS workload ID (ID)

  • Input/output operations performed per second (IOPS)

  • Throughput achieved in kilobytes per second (KB/s) or megabytes per second (MB/s) as appropriate (Throughput)

  • Request size in bytes (B) (Request size)

  • Read percentage from total IOPS (Read)

  • 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.

| [-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.

| [-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.