Datasheet

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CHAPTER 1 INTRODUCING VMWARE VSPHERE 5
These vRAM entitlements are per license of vSphere 5, and vSphere 5 continues to be licensed
on a per-processor basis. So, a physical server with two physical CPUs would need two licenses,
and there is no limit on the number of cores or the amount of RAM that can be physically
installed in the server. If you were to license that server with two licenses of vSphere Enterprise
Plus, you would have a vRAM entitlement of 192 GB. This means that you can have up to 192 GB
of vRAM allocated to running VMs. (The vRAM entitlement only applies to powered-on VMs.) If
you were to license the server with Standard Edition, you would have a vRAM entitlement of 64
GB, and you could have up to 64 GB of vRAM allocated to running VMs on that server.
Further, vRAM entitlements can be pooled across all the hosts being managed by vCenter
Server. So, if you had fi ve dual-socket hosts, you’d need ten vSphere 5 licenses (one each for the ten
CPUs across the fi ve dual-socket hosts). Depending on which edition you used, you would have a
pooled vRAM entitlement for the entire pool of servers of 320 GB (for Standard Edition), 640 GB (for
Enterprise Edition), or 960 GB (for Enterprise Plus Edition). vRAM entitlements that aren’t being
used by one server can be used on another server, as long as the total across the entire pool falls
below the limit. This gives administrators greater fl exibility in managing vRAM entitlements.
The basic idea behind vRAM entitlements is to help organizations move closer to usage-
based cost and chargeback models that are more typical of cloud computing environments and
Infrastructure as a Service (IaaS) models.
Let’s now summarize the features that are supported for each edition of VMware vSphere 5, along
with the associated vRAM entitlements for each edition. This information is presented in Table 1.3.
Table 1.3: Overview of VMware vSphere product editions
Essentials
Essentials
Plus Standard Enterprise
Enterprise
Plus
vCenter Server
compatibility
vCenter
Server for
Essentials
vCenter
Server for
Essentials
vCenter
Server
Foundation
and Standard
vCenter Server
Foundation and
Standard
vCenter Server
Foundation and
Standard
vRAM
Entitlement
32 GB 32 GB 32 GB 64 GB 96 GB
vCPUs per VM 8 8 8 8 32
High
Availability
XX X X
Data Recovery X X X X
vMotion X X X X
Virtual Serial
Port
Concentrator
XX
Hot Add X X
vShield Zones X X
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