statistics disk show
Disk throughput and latency metrics
Availability: This command is available to cluster administrators at the advanced privilege level.
Description
This command continuously displays performance data for disks at a regular interval. The command output displays data in the following columns:
- Disk - disk name.
- Node - node name.
- Busy (%) - percentage of time there was at least one outstanding request to the disk.
- Total Ops - total operations per second.
- Read Ops - read operations per second.
- Write Ops - write operations per second.
Parameters
- [-disk <text>] - Disk
- Selects the disk for which you want to display performance data.
- [-node {<nodename>|local}] - Node
- Selects the node 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 disks to display. The default setting is 25.
Examples
The following example displays disk statistics:
statistics disk show
Cluster1 : 12/13/2020 20:35:15
Busy *Total Read Write Read Write Latency
Disk Node (%) Ops Ops Ops (Bps) (Bps) (us)
----- --------------- ---- ------ ---- ----- ------ ------ -------
1.0.1 Multiple_Values 0 7 3 4 149504 154624 65
1.0.0 Multiple_Values 0 7 3 4 149504 154624 67
1.0.2 Multiple_Values 0 4 2 2 8192 28672 26
1.0.3 Multiple_Values 0 3 1 1 49152 51200 68
1.0.9 Multiple_Values 0 2 1 1 76800 37888 92
1.0.7 Multiple_Values 0 2 1 1 32768 37888 61
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