San Device Virtualization; About Sdv - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

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SAN Device Virtualization

This chapter describes how to configure virtual devices to represent physical end devices for switches
running Cisco MDS SAN-OS Release 3.1(2) and later, or NX-OS Release 4.1(1a) and later.
Cisco SAN device virtualization (SDV) is a licensed feature included in the Cisco MDS 9000 Family
Enterprise package (ENTERPRISE_PKG). See
details about acquiring licenses.
This chapter includes the following sections:
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•
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About SDV

As of Cisco SAN-OS Release 3.1(2) and NX-OS Release 4.1(1a), you can use Cisco SDV to create
virtual devices that represent physical end-devices. Virtualization of SAN devices accelerates swapout
or failover to a replacement disk array, and it also minimizes downtime when replacing host bus adapters
(HBAs) or when re-hosting an application on a different server.
SAN devices that are virtualized can be either initiators or targets. You can virtualize targets to create a
virtual target, and also virtualize initiators to create a virtual initiator. Such configurations do not
distinguish between virtual initiators and virtual targets (see
Figure 27-1
Server
OL-17256-03, Cisco MDS NX-OS Release 4.x
About SDV, page 27-1
Configuring SDV, page 27-4
Default Settings, page 27-10
Target Virtualization
Virtual
target
Traffic from
server
C H A P T E R
Chapter 10, "Obtaining and Installing Licenses,"
Primary target
Secondary target
Cisco MDS 9000 Family Fabric Manager Configuration Guide
27
Figure 27-1 and Figure 27-2).
for
27-1