topic Re: Deactivate the detection of low disk space anomalies at the hosts group level in Open Q&A

Deactivate the detection of low disk space anomalies at the hosts group level

Babar_Qayyum — Wed, 30 Sep 2026 07:55:08 GMT

Dear All,

Is it possible to deactivate the low disk space anomaly detection at the hosts group level?

Regards,

Babar Qayyum

Re: Deactivate the detection of low disk space anomalies at the hosts group level

Mohamed_Hamdy — Wed, 30 Sep 2026 08:33:21 GMT

I think you can achieve this by using Custom disk-detection rules at the host-group level

https://docs.dynatrace.com/managed/shortlink/api-v2-settings-get-schemas-builtin-anomaly-detection-disk-rules
https://docs.dynatrace.com/managed/shortlink/problem-detection-sensitivity-infrastructure#thresholds-for-specific-disks

Re: Deactivate the detection of low disk space anomalies at the hosts group level

Babar_Qayyum — Wed, 30 Sep 2026 08:52:59 GMT

Dear @Mohamed_Hamdy

I appreciate your feedback. I do not observe the identical on/off mechanism. Rather, we must decrease the percentage and sample limit parameters. Furthermore, even if I adjust the value to 0%, alerts will still be activated.

Regards,

Babar Qayyum

Re: Deactivate the detection of low disk space anomalies at the hosts group level

Mohamed_Hamdy — Wed, 30 Sep 2026 09:21:39 GMT

Hello @Babar_Qayyum , you can create the rule and disable it, Disabled custom disk detection rules will exclude all matching disks from environment settings

Re: Deactivate the detection of low disk space anomalies at the hosts group level

Babar_Qayyum — Wed, 30 Sep 2026 09:31:09 GMT

Dear @Mohamed_Hamdy

I appreciate your comments. Are you suggesting that the aforementioned custom rule, which has been created and subsequently disabled, should perform an equivalent function for the hosts group?

Regards,

Babar Qayyum

Re: Deactivate the detection of low disk space anomalies at the hosts group level

AntonPineiro — Wed, 30 Sep 2026 11:33:00 GMT

Hi,

I would try to use disk edge as much as possible. It would be the most flexible option.

Best regards

Re: Deactivate the detection of low disk space anomalies at the hosts group level

Babar_Qayyum — Wed, 30 Sep 2026 11:59:26 GMT

Hello @AntonPineiro

What would be the procedure to achieve the subject objective?

Regards,

Babar Qayyum

Re: Deactivate the detection of low disk space anomalies at the hosts group level

AntonPineiro — Wed, 30 Sep 2026 15:10:25 GMT

Hi,

Using Disk Edge instead, where you can filter by host metadata and by filter disk, to create logic you need.

Best regards

Re: Deactivate the detection of low disk space anomalies at the hosts group level

Mohamed_Hamdy — Wed, 30 Sep 2026 15:47:48 GMT

Yes, exactly. You can create a Custom disk-detection rule at the host-group level and disable it. As indicated in the UI, disabled custom rules exclude the matching disks from the Environment-level disk settings. For this specific requirement, this should be the simplest approach.

You can also consider Disk Edge, as @AntonPineiro mentioned, Dynatrace highlights Disk Edge as the improved disk anomaly-detection mechanism, and Disk Edge policies can also be configured at the Host Group level.

One possible Disk Edge approach would be to create a Host Group policy with a condition that can never realistically be met, for example: Available disk space (MiB) below 0

https://docs.dynatrace.com/docs/shortlink/host-monitoring#disk-edge