Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.0(4d) (OL-21012-06 B0, May 2011)

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Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.0(4d)
OL-21012-06
Limitations and Restrictions
On-Demand Port Activation License
On-demand ports allow customers to benefit from Cisco NX-OS Software features while initially
purchasing only a small number of activated ports on 8-Gbps or 4-Gbps Cisco MDS 9100 Series
Multilayer Fabric switches. As needed, customers can expand switch connectivity by licensing
additional ports.
I/O Accelerator Package
The Cisco I/O Accelerator (IOA) package activates IOA on the Cisco MDS 9222i fabric switch, the
Cisco MDS 9000 18/4 Multiservice Module (MSM-18/4), and on the SSN-16 module. The IOA package
is licensed per service engine and is tied to the chassis. The number of licenses required is equal to the
number of service engines on which the intelligent fabric application is used.The SSN-16 requires a
separate license for each engine on which you want to run IOA. Each SSN-16 engine that you configure
for IOA checks out a license from the pool managed at the chassis level. SSN-16 IOA licenses are
available as single licenses.
XRC Acceleration License
The Cisco Extended Remote Copy (XRC) acceleration license activates FICON XRC acceleration on the
Cisco MDS 9222i switch and on the MSM-18/4 in the Cisco MDS 9500 Series directors. One license per
chassis is required. You must install the Mainframe Package and the SAN Extension over FCIP Package
before you install the XRC acceleration license. The Mainframe Package enables the underlying FICON
support, and the FCIP license or licenses enable the underlying FCIP support. XRC acceleration is not
supported on the SSN-16.
Limitations and Restrictions
This section lists the limitations and restrictions for this release. The following limitations are described:
• Support for Generation One Modules, page 29
• IPv6, page 29
• User Roles, page 29
• Red Hat Enterprise Linux, page 30
• Generation 1 Module Limitation, page 30
• Schedule Job Configurations, page 30
• Maximum Number of Zones Supported in Interop Mode 4, page 30
• InterVSAN Routing, page 30
• Java Web Start, page 30
• VRRP Availability, page 31
• Using a RSA Version 1 Key for SSH Following an Upgrade, page 31
• CFS Cannot Distribute All Call Home Information, page 31
• Availability of F Port Trunking and F Port Channels, page 32
• Reserved VSAN Range and Isolated VSAN Range Guidelines, page 32