how much memory does the host machine have total?
how many V-machines are running on it at any one time?
Are you jumping from the host to the v-server because that uses more then just sitting on one or the other...
are we talking vmware (needs more ram) or hyper-v?
Bottom line is 1g ram is not allowing a 12r2 server to walk and chew gum... they need at least 3 and thats just a min.
It is a 2012r2 server farm of 4 with a connection broker server allocating where uses log in. Each vm has 8gb of memory allocated. I have upped the virtual memory on one of them to 4gb min to see if this one performs better. They are all ticking over nicely at the moment, but randomly one can have this issue and needs a restart to sort it out
True random is extremely rare in computers but can be caused by a faulty cpu… if it keeps up then I would pull one out of the cluster that has previously locked at least once and transfer/ run it on another physical host until it locks up again (not a faulty cpu) or convinces me the software set up is stable when running on another machine.