Forum Discussion

David_Lee's avatar
David_Lee
Former Employee
8 years ago

Windows Drive Space Alerts

Windows Drive Space Alerts By default, LogicMonitor alerts on the percentage used on any drive. This in general is fine, but sometimes not. Let’s imagine you have a 2.2 terabytes drive....
alerts
disk
thresholds
windows
Kevin_Ford's avatar
Kevin_Ford
Icon for Employee rankEmployee
6 years ago

We took a simpler approach in handling large volumes by adding a complex datapoint to the WinVolumeUsage datasource that alerts if both of the following are true: PercentFree < 5% AND FreeGB < 10 GB. So far this has worked well for us in reducing noise.

The following datapoint will equal "1" if the conditions are met, "0" if all is well:

    if(&&(gt(PercentUsed, 95), lt(FreeGB, 10)), 1, 0)

Since I hate hard-coding limits, we later modified it to pull the limits from properties so we can vary them by group/device/instance as needed. We set the default values for these properties (LowDiskSpacePercentFree & LowDiskSpaceFreeGB) at the top of our device tree.

    if(&&(gt(PercentUsed, LowDiskSpacePercentFree), lt(FreeGB, LowDiskSpaceFreeGB)), 1, 0)

Below is what this looks like. (We prefix many of our custom properties with our company name, which I obfuscated to be safe.)