You have selected free tutorial of the Microsoft Corporation for the Microsoft Technology Associate (MTA) :
98-365: MTA: Windows Server Administration Fundamentals :
Module 2: Understanding Server Roles :
Identify storage technologies.
Shared storage and clustering in Windows Server 2012 R2 deliver arguably the most signifi cant
functionality that any large enterprise or datacenter infrastructure design requires. Ensuring
that resources such as applications, services, fi les, and folders are delivered in a highly
available, centralized, and scalable offering should be paramount to every IT administrator and
consultant. Utilizing shared storage and clustering gives organizations the ability to scale out
storage on demand, create centralized locations for resources, and make them highly available
(HA) to the business.
The concepts of shared storage and clustering aren’t new or exclusive to Windows Server
2012 R2, but gaining a clear understanding of each will allow you to confi dently deploy the
enhanced HA offerings that come out of the box with the operating system. In this chapter you
will learn to:
- Use the available storage options for clustering
- Use quorums to help in clustering
- Build out host and guest clusters
In its most basic form, shared storage offers a central location inside an organization’s IT
infrastructure to host a specifi c set of fi les or applications so that multiple users can have
simultaneous access to them. Many different storage devices can be utilized for this technology,
examples of which are storage area networks (SANs), Network Attached Storage (NAS), and
Serial Attached SCSI (SAS). Depending on your requirements (and budget), which of these
options you deploy is up to you. Ultimately, when combined with clustering, they all achieve
the same goal of enabling people to keep working with their applications and fi les in the event
of a server outage. A simple example of this is a person named Sarah in Human Resources.
Sarah needs to make sure that she has a location to securely store critical documents related
to employees, which could include their Social Security numbers. With a properly designed
and implemented shared storage solution, Sarah can place these fi les on a shared location that
is encrypted and backed up and could potentially have rights management or other security
measures enabled. Other employees with the associated rights to this location have access
to these fi les, and Sarah doesn’t have to worry about trying to share the fi les from her own
workstation or even risk losing them if it was to crash.
Storage, and the ability to provide controlled access to it, is one of the most common
requirements of any organization. Many different storage options are available. Before we get
into the options available in Windows Server 2012 R2, let’s review the basic components:
- iSCSI SAN
- Fiber Channel SAN
- SAS enclosures
- SMB 3.0 Server 2012
With the feature advancements in Windows Server 2012 R2 specifi c to storage, you can
start utilizing these components on the infrastructure you already own. Let’s dig into these
technologies for a brief overview.
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