Hello All,
We have multiple Server 2008R2 VM's on different Server 2012R2 hosts that have the following problem.
VM Dynamic Memory enabled
Startup 2048Mb
Minimal 1024Mb
Maximum 10240Mb
VM starts up and allocates memory, Memory demand is ok and Memory status also. Sometimes after a reboot the Assigned memory is 2048Mb, the Memory demand and Memory status columns are empty (hyper-v manager), dynamic memory is still enabled according to the column and inside the VM the maximum memory is 2048Mb. On the host I get the following event:
Event id 19548
The dynamic memory balancer could not add memory to the virtual machine 'vm01' because its configured maximum has been reached (Virtual machine ID 5AC8B7DE-0848-49E2-AD0B-7D2C1A56803D).
There is plenty of RAM available on the host to cover twice the maximum configured RAM. All the VM's and Hosts have the latest updates, all the integration services are running inside the VM and there is no message in the event log inside the VM. I can't figure out why this event id is generated because there is more than enough RAM. I looked in several event logs on the Host and inside the VM but the only thing I can find is the one above (that's related to this problem I guess). Any help? for now the workaround is to reboot the server and watch what it does.
Regards,
Peter