Information Technology Reference
In-Depth Information
10.
Coni gure the VM with the determined amount of RAM by typing in the desired mem-
ory value, as shown in Figure 9.9. The default memory sizing is listed in megabytes (MB),
so it may be easier to change it to gigabytes (GB) so that you do not need to know the pre-
cise number of megabytes.
Figure 9.9
Based on guest
OS selection, the
vSphere Web Client
provides some basic
guidelines on the
amount of memory
you should confi g-
ure for the VM.
As shown in Figure 9.9, the vSphere Web Client displays recommendations about the
minimum and recommended amounts of RAM based on the earlier selection of operat-
ing system and version. This is one of the reasons the selection of the correct guest OS is
important when creating a VM.
The amount of RAM coni gured on this page is the amount of RAM the guest OS rel ects
in its system properties, and it is the maximum amount that a guest OS will ever be able
to use. Think of it as the virtual equivalent of the amount of physical RAM installed in a
system. Just as a physical machine cannot use more memory than is physically installed
in it, a VM cannot access more memory than it is coni gured to use.
When you've selected the amount of RAM you want allocated to the VM, click Next.
Do You Know Where Your Memory Is?
h e setting on the Customize Hardware page is not a guarantee that physical memory will be used
to achieve the confi gured value. As we discuss in later chapters, memory for a VM might be physical
RAM, VMkernel swap fi le space, or some combination of the two.
11.
Select the number of network adapters, the type of each network adapter, and the net-
work to which each adapter will connect. Figure 9.10 shows a screen shot of coni guring
