Why SCOM 2019 showing a low free disk space alert in Warning instead of Critical even after threshold was already exceeded?

Nishant Potdar 81 Reputation points
2024-07-04T05:55:30.6466667+00:00

Warning alert

Hello All,

I've SCOM 2019 environment in our organization. There are a few random still critical servers with the similar issue where, A low free disk space is in the critical state, instead of moving the alert notification in the Critical pane, I see this alert in the Warning pane under the SCOM console.

Can someone please help here?

I really appreciate any help you can provide.

Nishant Potdar

Windows Server 2019
Windows Server 2019
A Microsoft server operating system that supports enterprise-level management updated to data storage.
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Operations Manager
Operations Manager
A family of System Center products that provide infrastructure monitoring, help ensure the predictable performance and availability of vital applications, and offer comprehensive monitoring for datacenters and cloud, both private and public.
1,441 questions
Microsoft System Center
Microsoft System Center
A suite of Microsoft systems management products that offer solutions for managing datacenter resources, private clouds, and client devices.
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  1. XinGuo-MSFT 15,781 Reputation points
    2024-07-05T07:33:36.5233333+00:00

    Hi,

    The behavior you’re observing could be due to the way SCOM 2019 handles disk space monitoring. In SCOM, the “Logical Disk Free Space Monitor” treats system disks (typically the C: drive) differently than other disks.

    Kevin Holman's Blog provides a detailed explanation of how Logical Disk free space monitoring works in SCOM. It mentions that by default, the monitor will only generate alerts when the monitor is in a Critical health state, and Warnings are for showing state/health only. It also explains that the monitor treats SYSTEM disks differently than other disks and that both the Free Space in MB threshold and the Percentage free disk space threshold must be breached for the monitor to change state.