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CHAPTER 1 VMware VSphere 4 OVerView
implementation to automate your failover plans. You can also test these workflows completely
so that you know the recovery will work if and when you need it. It utilizes storage replication
to ensure that data is successfully and accurately transferred to the failover site. Because of vir-
tualization, you do not have to maintain strict hardware compatibility or map servers one to one
with your primary site environment.
For more details, check the vCenter Site Recovery Manager product page at www.vmware.com/
products/site-recovery-manager/.
VMware vSphere Editions
VMware provides vSphere in two separate offerings: one targeted for small businesses and the
other for midsize and enterprise businesses. Each of these offerings includes different editions
of vSphere that are tiered, based on the features included. In this section, we will provide a
quick overview of these offerings.
vSphere for Small Businesses
For the small businesses, these are the vSphere editions available:
VMware vSphere Essentials
•u
VMware vSphere Essentials Plus •u
Both these editions are limited to three physical servers and allow you to create vir-
tual machines with up to four virtual CPUs. Unlike the vSphere editions for midsize and
enterprise businesses, these editions also include the license for VMware vCenter Server
for Essentials to help you manage the virtual environment. The Essentials Plus edition adds
VMware HA and VMware Data Recovery to the Essential edition to provide the high-avail-
ability and data protection features. Note that these editions for small businesses are self-con-
tained packages that cannot be combined with other VMware vSphere editions.
If you want to virtualize only one physical server, you can use VMware ESXi, which is the
free version of the VMware ESX hypervisor with a smaller footprint. You will need to upgrade
to other vSphere editions to leverage any additional vSphere features or use vCenter Server for
management.
To address the needs of smaller deployments at retail and branch offices, VMware provides
special editions of the vSphere Essentials packages:
VMware vSphere Essentials for Retail and Branch Offices
•u
VMware vSphere Essentials Plus for Retail and Branch Offices•u
These retail and branch office editions allow you to upgrade the vCenter Server for Essentials
edition to vCenter Server Standard edition. This Standard edition adds support for vCenter
Orchestrator and vCenter Linked Mode features. The Essentials Plus edition adds VMware HA
and VMware Data Recovery to the Essential edition to provide the high-availability and data
protection features.
You can find the detailed comparison between these small business editions at www.vmware.com/
products/vsphere/buy/small_business_editions_comparison.html.
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