Release Notes HP C-series FC Switches for NX-OS_5.2(6b)(5697-2551, April 2013)

12 MDS 9000 Series Multilayer Director & Multilayer Fabric Switches Release Notes
The following guidelines must be considered when using the HP SN8000C Fabric 3 Director Module, HP
SN8000C 8Gb 48-Port Advanced Fibre Channel Module and the HP SN8000C 8Gb 32-Port Advanced
Fibre Channel Module:
• HP SN8000C Fabric 3 Director Module is supported only with Cisco NX-OS Release 5.2(2) or a
later release.
• You cannot use any Generation 4 8-Gbps Advanced Fibre Channel module in a director until you
upgrade to NX-OS Release 5.2(2) or a later release.
• Supervisor-2 or Supervisor-2A modules are required for the director to support any Generation 4 8-
Gbps Advanced Fibre Channel Switching module.
• Before installing the Generation 4 8-Gbps Advanced Fibre Channel module, ensure that the
configurations associated with LUN zoning, read-only zoning, and broadcast zoning are removed
from the chassis. If you try to power up the modules with any one of the configurations present, the
operation will fail.
• When a Generation 4 8-Gbps Advanced Fibre Channel module is installed in an existing chassis,
and broadcast zoning is already enabled in any of the VSANs, the modules will not power up. You
need to first disable broadcast zoning by entering the no zone broadcast enable vsan vsan id
command, and then power up the modules. To verify that broadcast zoning is disabled or enabled in
the VSAN, enter the show zone status vsan vsan_id command.
• Although broadcast zoning is not completely deprecated in the Cisco NX-OS Release 5.2, the
broadcast zoning configurations are disabled in the VSAN if the Generation 4 8-Gbps Advanced
Fibre Channel module is online in the chassis. If you change the zone mode to enhanced when
either of these modules is online, broadcast zoning will not be enabled. When these modules are not
online broadcast zoning is automatically enabled in the VSAN when you change the zone mode to
enhanced.
• You must do the following to increase the bandwidth capabilities of the HP SN8000C 13-Slot
Supervisor 2A Fabric 2 Director Switch and the HP Cisco MDS 9513 Director Switch:
– Upgrade to Cisco NX-OS Release 5.2(2) or a later release.
– Migrate from the existing Fabric 2 or Fabric 1 modules in the HP SN8000C 13-Slot
Supervisor 2A Fabric 2 Director Switch or the HP Cisco MDS 9513 Director Switch to HP
SN8000C Fabric 3 Director Module.
– If needed, reload the switch to enable the increased bandwidth. A switch reload is not
necessary for specific upgrades.
– If you install the HP SN8000C Fabric 3 Director Module, the active slot bandwidth of HP
SN8000C 13-Slot Supervisor 2A Fabric 2 Director Switch or the HP Cisco MDS 9513
Director Switch is 256-Gbps, or 512-Gbps full duplex.
• Once you upgrade to Cisco NX-OS Release 5.2 or a later release, a downgrade to an earlier NX-OS
release will be disruptive. Following the downgrade, the Generation 4 8-Gbps Advanced Fibre
Channel Switching modules in the switch will not power up.
Detailed instructions for migrating to the HP SN8000C Fabric 3 Director Module, the HP SN8000C 8Gb
48-Port Advanced Fibre Channel Module, and the HP SN8000C 8Gb 32-Port Advanced Fibre Channel
Module are included in Appendix A and Appendix B of the Cisco MDS 9500 Series Hardware Installation
Guide (OL-25184-01, July 2011).