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Custom alerts to monitor Physical Memory usage by group of server

Hello,

I'm fairly new to NPM, at my company we require to set custom alerts for critical servers; since our critical servers can increase or decrease in numbers, I am wondering what is the best way to create an alert that monitor the physical memory usage (by percentage) of servers in a group and send email alerts, indicating the name of the server with issue and the percentage usage of the physical memory. Once we have this figured out we can create more alerts for specific monitor, like CPU or disks percentage utilization.

Does any one know how to accomplish this or that can point me to a good article in how to do it.

My NPM version is 11.5.2

Thanks,

Didier

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d09h

Do you already have a node custom property handling this? If not, start by creating one,for example CriticalServer and set it to yes/ true where applicable. Your alerts can make this a condition--

if CriticalServer=True and CPU Usage > 90%

dcaamano

Hello d09h,

Thank you for your prompt response, I'm currently handling the alert through a group member custom property (see attached image SW_Custom_Alarm_Triger_Condition.png), the trigger condition is working, the main issue is the email alert, although I receive the email alert, the content of the alert is the condition I configure through NPM and not the values themselves (see attached image SW_Custom_Alarm_Email_Alert.png), what you see on the image is the exact thing I receive in the email alert, but not the server name and the memory utilization number. Any help is appreciated.

dcaamano

Hello,

Is there anyone that could assist me with the issue I'm having?

Thanks,

dcaamano

Any one that can help?

mbird

It sounds like you might just need to change the syntax in your alert. I know that it's different when you alert on a component vs. an application, etc. so if you search for the variable and then use the insert variable button you might be able to get the right one in there.

Here's an example of one of mine off of an application:

There is a problem with one or more XYZ services as of ${N=Alerting;M=AlertTriggerTime;F=DateTime}.

${N=SwisEntity;M=ApplicationAlert.ApplicationName} is ${N=SwisEntity;M=ApplicationAlert.ComponentsWithStatus} on ${N=SwisEntity;M=Node.Caption}

View full object details here: ${N=SwisEntity;M=DetailsUrl}.

View full alert details here: ${N=Alerting;M=AlertDetailsUrl}

Click here to acknowledge the alert: ${N=Alerting;M=AcknowledgeUrl}

dcaamano

Hey mbird,

Thanks for your response, what i'm concern is if the trigger is configured properly, I know the alert activates and send the email; however, is it configured properly so I can have the node alerts related objects on the syntax?

mbird

You can test it by using the simulate button when you're done with the alert creation. Alternatively if you want to really see if, just put your own email address in for the recipient and then you can actually build your alert and execute it.

Aside from that, unless you have your custom property to be filled in "yes", you may want to change the group syntax above to have the condition be along the lines of "group member", etc. and then have your group name be the value.

I don't do much with groups for the time being, but that's how I'd structure an alert. I think we're both on the same page with this, let me know what you think.

mesverrum

@Dcaamano

I think that ultimately you are going down the wrong road by setting up an alert thats keyed into the group membership. You don't want to use groups in the way you are trying to do at all because it is just going to make your life harder in the end. Just create a custom property on the nodes themselves not on the group, tag the nodes, then create an alert with a condition that says something like If "CriticalServer" custom property = Yes and memory greater than 90% or whatever then trigger the alert. The compound alert conditions are actually a way for you to take two completely separate events and correlate them to trigger a single alert. The way you have your alert set up will not work how you want and is way more complex than it has to be.

It's almost always my recommendation that if you want to build "groups" in Solarwinds you do it via the custom properties, not the Manage groups. the use cases where people actually need to use Manage groups are very different than what the name might lead you to believe.

-Marc Netterfield

Loop1 Systems: SolarWinds Training and Professional Services

LinkedIN: Loop1 Systems
Facebook: Loop1 Systems
Twitter: @Loop1Systems

FormerMember

Request to please share the message ($N=Swiss entity...) details for CPU and Memory alert. I tried to configure but not getting in proper format. Please help.