FAQ: Hyper-V
What are the requirements to run Hyper-V?
What operating systems can be installed on a virtual machine?
How many virtual machines can a server run?
The number of virtual machines a server can run varies depending upon server processors, RAM, and hard disk space.
Is the RAM customizable on each virtual machine?
Yes. You can use Hyper-V to customize the system resources for each virtual machine, including memory.
How much RAM does a virtual machine need?
RAM needs vary based on requirements for the virtual machine. Check the system requirements for your guest operating system. The amount of memory that is provided to a virtual machine can be changed at any time.
Can a virtual machine access to more than one processor?
You can grant a virtual machine access to multiple processors with any Windows virtual machine. However, Linux virtual machines are limited to a single processor.
Can hard disk sizes change after a virtual machine is created?
Yes.
Does each virtual operating system need to have a license?
Windows virtual machines are licensed through IBM Cloud. Linux virtual machines are freely licensed and require no action.
Do the virtual machines have access to the private network?
Yes. Virtual machines can connect to both a public and private network.
What advantages are there to providing private network access to virtual machines?
Providing private network access to virtual machines allows virtual machines to communicate with each other. Private network access also allows virtual machines to communicate with other internal systems such as NAS and iSCSI and any other servers that you have with IBM Cloud.
Can virtual machines use the secondary IP block that came with the server?
No. The secondary IP that was is provided with your server is routed specifically to work on the physical server and not a virtual machine. You need portable IP blocks to connect your virtual machine to the network.
What are portable IP addresses?
For information about portable IP addresses, see Getting started with Subnets and IPs.
How do I order Hyper-V?
You can install Hyper-V on an existing server by issuing an OS Reload and changing the operating system to a supported Windows Server Datacenter Edition with Hyper-V. To provision a new server with Hyper-V, order a new server and select a supported Windows Server Datacenter Edition with Hyper-V. See Obtaining installation media
The OS Reload for Hyper-V is done. What's next?
Hyper-V needs to be set up. For more information about setting up Hyper-V, see Setting up Hyper-V.
A virtual machine does not start. “Cannot initialize machine remoting system: Error:'Unspecified error'” How do I resolve this issue?
To resolve this problem, stop the Hyper-V service and restart it. This problem is typically caused by Hyper-V trying to start while the server activation occurs. Restarting the service brings the virtual machine back up after the activation completes.