Hello Abhishek, When you enable HA on your compute offering, CS will try to restart the VMs on other available hosts as part of HA if any host goes down due to any unplanned issue. You will also need to enable HA on your hypervisor side as well. This will only work if your host goes down ( most of the time in case of hardware failure, host usually go down if host continues to run the CS may not restart or migrate the VM, so it’s better to set alerts on hardware failure, so that you move your workload before host goes down ).
Regards, Vivek Kumar > On 25-Jul-2021, at 10:53 AM, Abishek <abckd...@gmail.com> wrote: > > Hello Every One, > > Just for future planning I want to know what will happen when there is a CPU > and memory failure in hosts. > Suppose a host is running at fully capacity of its 1.5TB of allocated RAM to > vm's. Suddenly lets say 3 RAM went awol. Will the vms start to get migrated > to another host or will cloudstack stop the VM's or will cloudstack run > continuously with overprovisioning RAM. Also, same scenario with CPU. What > will be the cloudstack's response to memory and CPU failures. > > Thank You.
