I have seen this before and never thought much about it but now it has come up again and I'd like to know what is causing the gap in monitoring on certain disks.
Below I have screen shots of different drives on the same server. The gap in December is fine as that's when I was doing some maintenance on the solarwinds box. but the Jan 1st on the D drive is what I am worried about.
The one I seen before this was on our exchange server, some logs filled up the c drive to 100% full and SW stated that it was 0% used. The cause for this one was there was no room on the c drive for wmi to run(so this is acceptable)