Applications Systems

VM Disk Latency Alert Variables

Out-of-the-box alert called VM disk latency. How to show the current values of the disk read latency and the disk Write latency.

First published date

12/23/2021 7:09 PM

Last published date

12/23/2021 7:09 PM

Overview

This article shows how to find the hidden values for the out-of-the-box alert called VM disk latency. This alert is made available with VMAN module. This alert looks at the disk read latency in this great latency of the virtual machine and ensures that it is not exceeding the warning threshold set by virtualization thresholds. If you must adjust the default VMAN virtualization thresholds for disk or other values, go to settings, all settings, virtualization thresholds (under Thresholds and Polling section).

Product section

Virtualization Manager

Cause

The variables are either not present in the lookup variable dialog box or they are mislabeled.

Resolution

One ProTip that can be offered is that you may extract SWQL at any time by going to the trigger conditions page of the alert and clicking on this ^ And select "Show SWQL." This can be used to guess what the variable might be.

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Read Latency
•Current Value (miliseconds) ${N=SwisEntity;M=LatencyReadThreshold.CurrentValue} 
•Warning Threshold (milliseconds) ${N=SwisEntity;M=LatencyReadThreshold.Level1Value} 
•Critical Threshold (milliseconds) ${N=SwisEntity;M=LatencyReadThreshold.Level2Value} 

Write Latency
•Current Value (miliseconds) ${N=SwisEntity;M=LatencyWriteThreshold.CurrentValue} 
•Warning Threshold (milliseconds) ${N=SwisEntity;M=LatencyWriteThreshold.Level1Value} 
•Critical Threshold (milliseconds) ${N=SwisEntity;M=LatencyWriteThreshold.Level2Value} 


See also
Commonly Used Alert Email Variables in Orion Platform