I looked through the forums but didn't see much on this. I did see a few people saying sleep isn't supported. With that said, I'm running Windows 10 with Hyper-V. My Laptop has a 128GB SSD so I run all my VMs off an external USB 3.0 drive. Since I'm not running a prod environment on my home laptop, I'd still like to be able to put my computer to sleep during the night if I want to put a project on hold without shutting down my guest VM(s). Last night, I paused my VM and put my host to sleep. This morning, I woke my laptop, resumed the VM and it appeared to work at first (running off what was left in memory) but then I realized it didn't seem connected to disk. I was unable to open any files, programs were terminating, and finally, when attempting to shutdown the OS (Linux), I got I/O errors.
Anyone have thoughts? Is this expected behavior since sleep isn't "supported?" Or, maybe this has something to do with me running my VMs on an external USB drive? IIRC, I think I've run VirtualBox VMs from my external drive while suspending and sleeping without problems.