HP Cisco Nexus 5000 Cisco MDS 9000 Family CLI Configuration Guide - Release 4. - Page 533

Chapter 21 SAN Device Virtualization Configuring SDV Send documentation comments to [email protected] Note When you enable SDV, CFS distribution is also enabled; CFS distribution cannot be disabled for SDV. The following sections describe how to configure SDV: • Configuring a Virtual Device, page 21-5 • Configuring a Zone for a Virtual Device, page 21-7 • Linking a Virtual Device with a Physical Device, page 21-10 • Configuring LUN Zone Members for SDV Devices, page 21-10 • Resolving Fabric Merge Conflicts, page 21-11 Configuring a Virtual Device A virtual device is identified by an alphanumeric name of up to 32 characters and defines all the real devices (one primary and one or more secondary) that it represents. Upon the successful creation of a virtual device, the virtual device name is internally registered as the device alias name with the device alias database; the pWWN is automatically assigned by the system using Cisco Organizational Unique 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. Note As of Cisco MDS SAN-OS Release 3.1(2) and NX-OS Release 4.1(1a), SDV supports up to 1024 virtual devices per VSAN. Figure 21-5 shows a configuration that includes a new virtual device, vt1. Figure 21-5 Creating a Virtual Device i1pwwn i2pwwn i3pwwn i1 i2 i3 SAN Device Virtualization vtpwwn vt1 VT Virtual Device t1pwwn t1 t2pwwn t2 Primary Secondary 159900 OL-18084-01, Cisco MDS NX-OS Release 4.x Cisco MDS 9000 Family CLI Configuration Guide 21-5