---
title: "VMware Performance Host Disk Alarms"
slug: "vmware-performance-host-disk-alarms"
description: "Configure SysTrack alarms that trigger when the free space on a VMware host disk stays below a limit for a set time."
status: "update"
updated: 2026-10-26T15:14:41Z
published: 2026-10-26T15:14:41Z
canonical: "documentation.lakesidesoftware.com/vmware-performance-host-disk-alarms"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://documentation.lakesidesoftware.com/llms.txt
> Use this file to discover all available pages before exploring further.

# VMware Performance Host Disk Alarms

This article describes the alarm of the Performance: VMware Host Disk category and its factory defaults. Using this category on the Roles page Alarms tab, you can configure yellow and red level alarms for the VMware host Disk Free Space counter to monitor the percentage of total usable space on the selected logical disk drive that is free.

The **Performance: VMware Host Disk** category is on the **Alarms** tab of a role (**Configure** > **System Configuration** > **Roles**). To turn these alarms on and change their limits, times, and profiles, see [Configure Alarms in a Role](/documentation/docs/configure-alarms-in-a-role).

In the example alarm configuration called out below, if % Disk Free Space is below 20% for 120 seconds, a **Yellow** level alarm is triggered. If % Disk Free Space is below 10% for 240 seconds, a **Red** level alarm is triggered.

![](https://cdn.document360.io/87d11426-6b1f-4b19-b593-b71e55a81af3/Images/Documentation/image(489).png?sv=2026-02-06&spr=https&st=2026-11-08T17%3A12%3A34Z&se=2026-11-08T18%3A12%3A34Z&sr=c&sp=r&sig=LwaoG0KinAPkRYQSKJvH0%2FMbDtVTXBpaMyiVttAyR%2B0%3D)

## Performance VMware Host Disk Alarms and Defaults

The **Performance: VMware Host Disk** category has this alarm. The **Default** column shows the factory values. A role can change them.

| Alarm | Description | Default |
| --- | --- | --- |
| % Disk Free Space | Monitors the percentage of total usable space on the selected logical disk drive that is free. | Off. Yellow 20 for 120 s, Red 10 for 240 s. |