Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual page 599

Chapter 27 SAN Device Virtualization
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
Identifier (OUI). A virtual device appears as a real, physical device. You can enumerate up to 128 devices
for a virtual device. There is a limit of 4095 on the number of virtual devices that you can create in a
single VSAN.
Figure 27-5
Figure 27-5
Virtualization
As of MDS NX-OS Release 4.1(1a), the following conditions must be considered when configuring the
virtual device failover attributes:
The attribute configuration is supported only with MDS NX-OS Release 4.1(1a) and later. In a
•
mixed mode fabric where earlier releases are combined, the attribute configuration will fail.
When the failover attribute is configured, if the primary device is offline then the secondary device
•
becomes active.
When the failover attribute is deleted after the primary device failover to the secondary device, then
•
the primary becomes active if the primary device is online. If the primary device is not online, then
the SDV virtual device is shut down.
Note The SDV attributes configuration is supported in MDS Fabric Manager Release 4.1(2) and later.
To configure a virtual target and commit it to the fabric configuration using Fabric Manager, follow these
steps:
Expand SAN in the Logical Domains pane. Then expand the fabric in which your VSAN resides.
Step 1
Expand the VSAN in which you wish to create the virtual target and select SDV. You see the switches
Step 2
in the VSAN that you selected listed in the Information pane.
In the Control tab, select enable from the drop-down menu in the Command column to enable SAN
Step 3
device virtualization for a particular switch in the VSAN(see
OL-17256-03, Cisco MDS NX-OS Release 4.x
shows a configuration that includes a new virtual device, vt1.
Creating a Virtual Device
i1pwwn
SAN Device
vtpwwn
vt1
VT
i2pwwn i3pwwn
i1 i2 i3
Virtual
Device
t1pwwn t2pwwn
t1 t2
Primary Secondary
Cisco MDS 9000 Family Fabric Manager Configuration Guide
Configuring SDV
Figure 27-6).
27-5