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Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.0(4b)
OL-21012-04
Limitations and Restrictions
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 28
•
IPv6, page 28
•
User Roles, page 28
•
Red Hat Enterprise Linux, page 28
•
Generation 1 Module Limitation, page 28
•
Schedule Job Configurations, page 29
•
Maximum Number of Zones Supported in Interop Mode 4, page 29
•
InterVSAN Routing, page 29
•
Java Web Start, page 29
•
VRRP Availability, page 29
•
Using a RSA Version 1 Key for SSH Following an Upgrade, page 29
•
CFS Cannot Distribute All Call Home Information, page 30
•
Availability of F Port Trunking and F Port Channels, page 31
•
Reserved VSAN Range and Isolated VSAN Range Guidelines, page 31
•
Applying Zone Configurations to VSAN 1, page 32
•
Running Storage Applications on the MSM-18/4, page 32
•
RSPAN Traffic Not Supported on CTS Ports on 8-Gbps Switching Modules, page 32
•
I/O Accelerator Feature Limitations, page 32
•
Support for FCIP Compression Modes, page 32
