Issue when you decide to unmanage a device

Hi,

I would like to stop to monitor few device by modifying the status from Manage to unmanage, I need to do that because I need to keep data history for these devices.

When I idi that, I continue to receive alarm regarding services down etc, I don't want to remove service from device snapshot for reason mentioned before.

Is it possible to correct it to stop to send alarm when the status of a device is unmanaged specially for escalation.

We would like to do it also for ours printers (156 printers) we stop the monitoring at 06:00 PM and restart it at 04:00 AM during this period I don't want to receive any escalation etc.

Thank you for your quick answer

Regards
Philippe