DHCP Pool Percent In Use

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Put together a datasource that will report/alert on specific DHCP Scopes percent in use

LM Exchange: HMT9K4

sawyer_lef

Posted 8 years ago·Last reply 8 years ago

13 comments

mnagel

·8 years ago

I found the same thing and also elected to install the necessary module on our collectors rather than remote PS via WMI as the LM version uses. I also found the published DS does not account for superscopes, so I did my own (based on code I found, which is credited :). Sadly, there is no way to place linebreaks in the instance labels so superscopes labels tend to run off the edge of the column.

9AMZCD

Justin

·8 years ago

I was referring to the fact that the core datasources do not work on server 2008.

Andrey_Kitsen

·8 years ago

1 hour ago, Justin said:

I wasn't happy with the idea that this would only work on Server 2012, so I updated it to run on the collector instead of the monitored DHCP server. this also removes the need to add psconfig properties. The only catch is that all of your collectors must be running Server 2012 with DHCP management tools installed. The script will check and if necessary install the DHCP tools at first discovery. Let me know your thoughts. Solved a lot of issues for me.

DHCP_Scope: 4P2WKM

DHCP_Server_Stats: MT7GPT

@Justin the DHCP DataSources in core work for 2012 and newer, not just 2012. Not sure where you got that information.

The reason we use the PropertySource is to identify a host and to apply appropriate categories prior to attempting to discover any instances. This removes a significant amount of load off the collector.

Justin

·8 years ago

I wasn't happy with the idea that this would only work on Server 2012, so I updated it to run on the collector instead of the monitored DHCP server. this also removes the need to add psconfig properties. The only catch is that all of your collectors must be running Server 2012 with DHCP management tools installed. The script will check and if necessary install the DHCP tools at first discovery. Let me know your thoughts. Solved a lot of issues for me.

DHCP_Scope: 4P2WKM

DHCP_Server_Stats: MT7GPT

Andrey_Kitsen

·8 years ago

1 minute ago, WillFulmer said:

Will DHCP servers be automatically discovered or must the Windows_DHCP be tagged on these specific devices?

@WillFulmer there's a PropertySource in our core repository called 'addCategory_Microsoft_DHCPServer' which will automatically add the categories.

You can also import it by locatorID GF2K94

Will Fulmer

·8 years ago

Will DHCP servers be automatically discovered or must the Windows_DHCP be tagged on these specific devices?

Andrey_Kitsen

·8 years ago

On 1/9/2018 at 11:22 AM, mkerfoot said:

7EMGDK

I have modified the script so that it monitors all DHCP pools on Windows Server 2012 R2. It should work on any Windows machine with PowerShell v5+ though.

PoolUsagePercentage threshold = >=90,95,98

good reuse of code.

Would anyone else find what @mkqai created useful ? @WillFulmer @sawyer.lef @jamiemurphyit

If yes, I'll go ahead and file a ticket to get additional monitoring for Windows DHCP.

mkerfoot

·8 years ago

7EMGDK

I have modified the script so that it monitors all DHCP pools on Windows Server 2012 R2. It should work on any Windows machine with PowerShell v5+ though.

PoolUsagePercentage threshold = >=90,95,98

Kerry DeVilbiss

·8 years ago

Hey @WillFulmer,

The two official DHCP datasources are now available from the repository, so you can check for them through Settings-> LogicModules-> DataSources-> Add-> From LogicMonitor Repository.

Alternatively, here are the names and locator codes:

Microsoft_DHCP_IPv4Server - K9AN49
Microsoft_DHCP_IPv4Scopes - 3LWA7T

Cheers,

Kerry

Will Fulmer

·8 years ago

Any update on ETA for this?

sawyer_lef

OP8 years ago

Sorry I should of mentioned. This is for DHCP scope monitoring on Windows Server 2012 R2. I have not tested it on other verions of WIndows Server

jamiemurphyit

·8 years ago

@sawyer.lef what is this for? cisco, juniper etc?

Andrey_Kitsen

·8 years ago

@sawyer.lef we are close to releasing our official supported DHCP scope monitoring. I'll let you know when it goes live in core.