Figure 5.14 Specifying alternate credentials to manage a remote Hyper-V server
The Virtual Machines pane at the top center shows the virtual machines that are
hosted by the currently selected Hyper-V server. Note that it is not possible to select
multiple servers to see virtual machines from them. Only one server’s virtual machine
inventory can be shown. By default, several pieces of information are shown in the
virtual machine’s view, specifically its name, current state (such as Running, Paused,
Saved, or Off), the CPU usage, assigned memory, uptime, and status. It’s also possible
to add a Replication Health column by right-clicking the column headings and
selecting Add/Remove Columns, which also allows columns to be removed and the
order rearranged. This view is useful to get a high-level view of the virtual machines
on a host. If a node is clustered, only the virtual machines running on the node will be
shown and not all virtual machines in the cluster.
Note that the CPU Usage value shown is the percentage of resources used of the entire
Hyper-V host and not the resource usage of the virtual processors within the virtual
machine. For example, a virtual machine with a single vCPU may be running at 100
percent, but if a server has 24 logical processors in total, then 100 percent would be
about only 4 percent of the total system resources, which is the number that would be
visible in Hyper-V Manager. This is why on large systems it is common for virtual
machines to show a value of 0 for CPU usage. Figure 5.15 shows an example of this
with a virtual machine running a CPU stress-test tool with its single processor
running at 100 percent, while Hyper-V Manager shows it using only 3 percent.
SCVMM shows the actual CPU utilization of the virtual machine’s allocated resources