20-07-2012, 10:57 AM
VMware Infrastructure Architecture Overview
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Storage Networks and Arrays
Fiber Channel SAN arrays, iSCSI SAN arrays and NAS arrays
are widely-used storage technologies supported by VMware
Infrastructure to meet different data center storage needs.
Sharing the storage arrays between (by connecting them to)
groups of servers via storage area networks allows aggregation
of the storage resources and provides more flexibility in provisioning
them to virtual machines.
IP Networks
Each computing server can have multiple gigabit Ethernet
network interface cards (NICs) to provide high bandwidth and
reliable networking to the entire data center.
Management Server
The VirtualCenter Management Server provides a convenient
single point of control to the data center. It runs on Windows
2003 Server to provide many essential data center services such
as access control, performance monitoring and configuration.
It unifies the resources from the individual computing servers to
be shared among virtual machines in the entire data center. As
shown in Figure 1-3, VirtualCenter Management Server accomplishes
this by managing the assignment of virtual machines to
the computing servers. VirtualCenter Management Server also
manages the assignment of resources to the virtual machines
within a given computing server based on the policies set by
the system administrator.
Desktop Clients
VMware Infrastructure provides a selection of interfaces for
data center management and virtual machine access. Users
can choose the interface that best meets their needs: Virtual
Infrastructure Client (VI Client), Web Access through a Web
browser, or terminal services (such as Windows Terminal
Services or Xterm).
Virtual Data Center Architecture
VMware Infrastructure virtualizes the entire IT infrastructure
including servers, storage and networks. It aggregates these
heterogeneous resources and presents a simple and uniform
set of elements in the virtual environment.
ESX Server External Interfacing Components
ESX Server is a virtualization layer that abstracts the processor,
memory, storage, and networking resources of a physical server
into multiple virtual machines that run side-by-side in a secured
and isolated manner. There is one copy of the ESX Server that
runs on each physical x86 machine. In this section, only the
components of ESX Server that interfaces with the outside
world are described, see Figure 1-13. For more detail information
on ESX Server, please consult numerous other ESX Server
technical documents.
Conclusion
Of all the virtualization solutions in the market, only VMware
Infrastructure is architected from the ground up to enable
customers to bring the benefits of virtualization to the entire
enterprise platform, including server, storage and networking
systems. VMware Infrastructure not only enables customers to
build an entire virtual data center that matches the capabilities
available in the physical world, but it goes one step further by
offering the flexibility and control that is physically cost-prohibitive
or impossible.
With a whole suite of complementary virtualization and management
services such as virtual VMware VMotion, VMware
DRS, VMware HA and VMware Consolidated Backup, VMware
Infrastructure is the only offering that delivers a complete
solution rather than piece-meal approach for customers to
build a data center in a virtual environment.