Cisco SN6000C Release Note page 33

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
Saving Copies of the Running Kickstart and System Images
After you upgrade to MDS NX-OS Release 4.2(1b), you are not allowed to delete, rename, move, or
overwrite the kickstart and system images that are in the current system bootvar settings on an active or
standby MDS Supervisor-2 module on any Cisco MDS 9500 Series switch. This restriction does not
apply to the integrated supervisor module on the MDS 9200 and MDS 9100 series switches.
Configuring Buffer Credits on a Generation 2 or Generation 3 Module
When you configure port mode to auto or E on a Generation 2 module, one of the ports will not come
up for the following configuration:
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When you configure port mode to auto or E on a Generation 3 module, one or two of the ports will not
come up for the following configuration:
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When you configure port mode to auto or E for all ports in the global buffer pool, you need to reconfigure
buffer credits on one or more of the ports. The total number of buffer credits configured for all the ports
in the global buffer pool should be reduced by 64.
Features Not Supported on the Cisco MDS 9148 Switch
The Cisco MDS 9148 Multilayer Fabric Switch does not support the following NX-OS features:
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In addition, the following features have these limits:
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PPRC Not Supported with FCIP Write Acceleration
IBM Peer to Peer Remote Copy (PPRC) is not supported with FCIP Write Acceleration.
OL-21012-04
Port Mode: auto or E for all of the ports
Rate Mode: dedicated
Buffer Credits: default value
Port Mode: auto or E for the first half of the ports, the second half of the ports, or for all of the ports
Rate Mode: dedicated
Buffer Credits: default value
IVR
Remote Span
Translative loop support
FCC - no generation, quench reaction only
FC-Redirect
VSANs - 31 maximum
SPAN - 1 session maximum
Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.0(4b)
Limitations and Restrictions
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