230 Implementing the IBM Storwize V5000 Gen2 with IBM Spectrum Virtualize V8.1
Figure 5-37 Allocation of NPIV virtual WWPN ports per physical port after a node failure
With V7.7.0 onwards, this all happens automatically when NPIV is enabled at a system level
in SVC. At this time, the failover only happens automatically between the two nodes in an I/O
Group.
There is a transitional mode for compatibility with an earlier version during the transition
period as well.
The processes for enabling NPIV on a new IBM Spectrum Virtualize system is slightly
different than on an existing system. For more information, see IBM Knowledge Center:
https://ibm.biz/BdjSrn
5.4.1 NPIV prerequisites
The following key points should be considered for NPIV enablement:
For NPIV enablement, the IBM Spectrum Virtualize system must be at version 7.7.0 or
later.
A version 7.7.0 or later system with NPIV enabled as backend storage for a system that is
earlier than version 7.7.0 is not supported.
Both nodes in an IO group should have identical hardware to allow failover to work as
expected.
Fibre Channel switches must permit each physically connected IBM Spectrum Virtualize
system port the ability to create two additional NPIV ports.
Check the configuration and restriction webpage at https://ibm.biz/BdjSJx to ensure
your operating environment is supported for NPIV.
Note: NPIV is only supported for Fibre Channel protocol. It is not supported for FCoE
protocol or iSCSI.
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