SQL_Server_2014_Virtualization_Licensing_Guide.pdf

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Microsoft SQL
Server 2014
Virtualization
Licensing Guide
June 2014
Contents
1
1
Introduction
Quick Overview: Licensing SQL Server
2014 for Virtualization
-Licensing Individual Virtual Machines
-Licensing for Maximum Virtualization
3
Scenario 1: Server Consolidation
-Licensing Individual VMs
7
Scenario 2: Dynamic Virtual Environments
-License Mobility
© 2014 Microsoft Corporation. All rights
reserved.
8
Scenario 3: High Volume Dynamic Virtual
Environments
-Licensing for Maximum Virtualization
This document is for informational purposes
only. MICROSOFT MAKES NO WARRANTIES,
EXPRESS OR IMPLIED, IN THIS SUMMARY.
Microsoft provides this material solely for
informational and marketing purposes.
Customers should refer to their agreements
for a full understanding of their rights and
obligations under Microsoft’s Volume
Licensing programs. Microsoft software is
licensed not sold. The value and benefit
gained through use of Microsoft software and
services may vary by customer. Customers
with questions about differences between this
material and the agreements should contact
their reseller or Microsoft account manager.
Microsoft does not set final prices or payment
terms for licenses acquired through resellers.
Final prices and payment terms are
determined by agreement between the
customer and its reseller. Eligibility for
Software Assurance benefits varies by offering
and region and is subject to change. The
Terms and Conditions of your Volume License
Agreement and the Terms and Conditions
under which any specific Software Assurance
benefits are offered will take precedence in
the case of any conflict with the information
provided here. For eligibility criteria and
current benefit program rules, see the
Microsoft Product List.
10
10
Summary
Appendix
- SQL Server Virtualization Rights for Prior
Software Releases
Microsoft SQL Server 2014 Virtualization Licensing Guide
Introduction
Virtualization is being employed in a wide range of computing scenarios
today, from software development and testing, to disaster recovery and
load balancing. To date, one of the major drivers of virtualization has
been server consolidation. With the increase in server core density, a
typical workload may use just a small fraction of the available
computing capacity, and virtualization offers a simple way to carve out
and use only the required processing power from server hardware. A key
trend today is database virtualization, which allows the database to run
in a virtual environment, enabling benefits like more efficient hardware
utilization, easier management, and higher availability.
To gain the benefits of database virtualization, Microsoft customers are
virtualizing their SQL Server workloads and will increasingly do so. With
SQL Server 2014, Microsoft provides licensing options to help customers
take advantage of virtualization, and to pay in a more granular and fair
way than the industry has typically seen.
In this paper, we will cover the virtualization licensing options available
with SQL Server 2014 and take a close look at the key principles
involved. Along the way, we will also examine a few real-world scenarios
to help illustrate how these principles are put into practice.
Quick
Overview:
Licensing SQL
Server 2014 for
Virtualization
SQL Server 2014 offers customers a unique level of flexibility when
licensing in virtual environments – with options to license for
maximum/unlimited virtualization or to carve out just the computing
power needed by licensing individual virtual machines (VMs). In this
document, we will cover each of these options and the related licensing
rules in detail. First, let’s start with a brief overview of these two paths.
Microsoft SQL Server 2014 Virtualization Licensing Guide
1
Licensing
Individual Virtual
Machines
Microsoft offers the unique option to license VMs individually. This is in
contrast to other database vendors in the industry that usually require
customers to license the entire server, even when the workload utilizes
only a fraction of the available computing power. The option to license
individual VMs is designed to help organizations use hardware
resources more cost-effectively by carving out and paying for just the
computing power that is needed. SQL Server can be licensed in
individual VMs using the “Per Core” or the “Server+CAL” licensing
model.
Per Core Licensing Model:
Purchase a core license for each virtual core (or virtual processor/virtual
CPU/virtual thread) allocated to the VM, subject to a four core license minimum per VM.
Server+CAL Licensing Model:
SQL Server 2014 Business Intelligence and Standard Edition customers
purchase one server license for each VM running SQL Server software. In this model, each user or device
accessing SQL Server 2014 must also be licensed with a SQL Server 2014 Client Access License (CAL).
Note that individual VMs may also be licensed for SQL Server 2014 Enterprise Edition through the
Server+CAL model. See page 8 for more details.
Licensing for
Maximum
Virtualization
As virtualized environments grow and become more dynamic,
customers have the option to license for maximum virtualization, which
can dramatically simplify software licensing management.
SQL Server 2014 Enterprise Edition customers who have licensed all
of the physical cores on the server, and have Software Assurance (SA)
coverage for those licenses, may deploy any number of VMs on that
server.
SQL Server 2014 Enterprise Edition customers who have licensed all
the physical cores on the server, but who do not have SA coverage,
can only deploy a number of VMs equal to the number of core
licenses assigned to the server.
SQL Server 2014 Edition
Enterprise
(Server+CAL)*
Business Intelligence
(Server+CAL)
Standard
(Per Core)
Standard
(Server+CAL)
Licensing Option
Individual Virtual Machines
Maximum Virtualization
Enterprise
(Per Core)
This table summarizes the virtualization licensing options available for each SQL Server 2014 edition.
*For additional information on licensing the SQL Server 2014 Enterprise Edition in the Server+CAL licensing model, see page 8.
For more information on these licensing options, refer to the “SQL Server 2014 Licensing Guide”, which
can be found here:
http://go.microsoft.com/fwlink/?LinkId=230678
Next, we will discuss these licensing rules in more detail and walk through a few use cases to help illustrate
how these can be applied in real-world scenarios.
Microsoft SQL Server 2014 Virtualization Licensing Guide
2
Scenario 1:
Server
Consolidation
Licensing Individual VMs
Server consolidation has been a major driver of virtualization in today’s
IT environments. Virtualizing workloads and consolidating them onto
fewer physical servers can improve hardware utilization and reduce
server hosting and administration costs.
As an example, consider a manufacturing company that has a reporting
workload running on a SQL Server 2014 database, hosted on a
dedicated server. Similarly, the company has CRM and HR applications
built on SQL Server databases, and each running on their own dedicated
server. After purchasing new high capacity hardware, the company
decides to virtualize these three workloads and move them to a single
server.
A manufacturing company virtualizes its reporting, HR, and CRM systems and consolidates
them onto a single high capacity server.
In this scenario, the company chooses to license each VM individually. This provides the flexibility to license
only the computing power required by each SQL Server workload. Let’s look in depth at how to license
individual VMs in this example using each of the available licensing models.
Licensing Individual VMs in the Per Core Model
To license each of these VMs in the Per Core licensing model, this customer must purchase a core license for
each virtual core allocated to the VM. Consistent with Per Core licensing in the physical environment, there is a
four core minimum license requirement for each VM.
(Note that for licensing purposes, a virtual core is
equivalent to a virtual thread and may also be referred to as a virtual processor or virtual CPU.)
To illustrate this, we’ll continue with our manufacturing company example in which three workloads have been
virtualized and consolidated on a single server. In this example, these workloads are static and will remain on
the server.
Microsoft SQL Server 2014 Virtualization Licensing Guide
3

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