Release Notes

Send documentation comments to [e-mail]
27
)Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.0(1a)
OL-21012-01
Hardware Changes
SFP Diagnostics
Any error message related to SFP failures or SNMP traps will be written to syslog. Customers can listen
to syslog for events related to SFP failures.
Where Documented
For documentation on SFP messages that are written to syslog, see the Cisco MDS 9000 Family NX-OS
System Management Configuration Guide.
Discontinued Software Features
As of NX-OS Release 5.0(1a), support for Fabric Congestion Control (FCC) is discontinued. If you are
currently using FCC in your SAN environment, you should turn it off before upgrading to NX-OS
Release 5.0(1a). Use the no fcc enable command to turn off the FCC feature.
Hardware Changes
This section describes hardware changes associated with NX-OS Release 5.0(1a).
MDS 9148 Multilayer Fabric Switch
The Cisco MDS 9148 Multilayer Fabric Switch is a high-performance, flexible, cost-effective platform
that provides high-density, line-rate 8-Gbps ports for storage networking deployments in small,
medium-sized, and large enterprise environments. The MDS 9148 offers up to 48 autosensing Fibre
Channel ports capable of speeds of 1-, 2-, 4-, or 8-Gbps. The switch comes with three preconfigured
models for 16, 32, or 48 ports. The 16- and 32-ports models can be upgraded onsite to enable additional
ports by adding one or more 8-port Cisco MDS 9148 On-Demand Port Activation licenses.
Where Documented
For hardware installation information about the MDS 9148 switch, see the Cisco MDS 9100 Series
Hardware Installation Guide. For software information related to the MDS 9148 switch, see the Cisco
MDS 9000 NX-OS Interfaces Configuration Guide and the Cisco MDS 9000 Family Command
Reference.
Generation 1 Hardware Support Discontinued
Cisco MDS NX-OS Release 5.0(1a) does not support the following Generation 1 modules:
• DS-X9302-14K9 - 14/2-port Multiprotocol Services (MPS-14/2) Module
• DS-X9016 - 16-port 1-, 2-Gbps Fibre Channel Switching Module
• DS-X9032 - 32-port 1-, 2-Gbps Fibre Channel Switching Module
• DS-X9032SSM - 32-port Storage Services Module (SSM)
Generation 1 modules should be removed from a switch chassis before the installation of NX-OS Release
5.0(1a) begins.
In addition, Cisco MDS NX-OS Release 5.0(1a) does not support the MDS 9216i switch.