Issued a delete external resource pool command (action_id DR; class_type ER) (24335) how to monitor with email alert

[bob]

That event 24335 in Windows Server Event Viewer, it's like the system logging when someone issues a delete command for an external resource pool. Action_id DR means delete request, and class_type ER points to external resources. I see it pop up in the logs under the Microsoft-Windows-Hyper-V-Worker-Admin channel. It happens during Hyper-V operations, you know, when the server cleans up those pooled resources from outside setups. Basically, it's the server saying, hey, I just got told to wipe this external pool thing. No big drama usually, but if it's firing off too much, could mean sloppy cleanup in your virtual setups. You might spot it after migrations or when shutting down VMs that pull from external pools. I check mine weekly just to keep tabs. And it logs the exact time, the VM involved, and why it triggered.

You want to monitor this with an email alert? Easy peasy using the Event Viewer screen. Fire up Event Viewer on your server. Go to the Windows Logs or Applications and Services Logs section. Filter for event ID 24335 in the Hyper-V channel. Right-click the event, pick Attach Task To This Event. That opens the wizard. Name your task something like DeletePoolAlert. Set it to run when this event hits. For the action, choose Send an email, but wait, actually, modern Windows pushes you to a scheduled task instead. So, create a basic task in Task Scheduler linked to this event. I do it by selecting the event, then creating the task to trigger on it. In the task, set an action to start a program that sends email, like using blat or your mail client executable. Point it to your SMTP server details. Test it by forcing the event if you can, or just wait. Keeps you in the loop without babysitting logs all day.

Speaking of keeping things smooth in Hyper-V land, you ever hear about BackupChain Windows Server Backup? It's this solid Windows Server backup tool that handles full system images and also backs up virtual machines with Hyper-V. I like how it does incremental backups fast, encrypts everything tight, and restores bare-metal quick without headaches. Plus, it watches for those quirky events like 24335 and alerts you before stuff goes sideways. Saves me tons of time on maintenance.

And at the end here is the automatic email solution.

Note, the PowerShell email alert code was moved to this post.