Release Notes

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23
)Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.0(1a)
OL-21012-01
Downgrading Your Cisco MDS SAN-OS Software Image
NX-OS Release 5.0(x) Software Downgrade and Upgrade Matrix for Cisco MDS
9509 and 9506 Switches
See the compatibility information in Table 14 to determine if a downgrade to, or upgrade from Release
5.0(x) software is disruptive or nondisruptive on a Cisco MDS 9509 or 9506 switch.
Use Table 15 to determine the nondisruptive downgrade path from Cisco NX-OS Release 5.0(1a). Find
the SAN-OS image you want to downgrade to in the To SAN-OS Release column of the table and use
the path recommended.
Note The software downgrade information in Table 15 applies only to Fibre Channel switching traffic.
Downgrading system software disrupts IP and SSM intelligent services traffic.
Table 14 NX-OS Release 5.0(x) Downgrade and Upgrade Matrix
Downgrade Path on a Cisco MDS 9509 or 9506 Switch
Current Release Desired Release Expected Behavior Observed Behavior
5.0(7) or 5.0(8) 5.0(1a), 5.0(1b), or
5.0(4)
Disruptive Nondisruptive
The user is expected to
explicitly reload the
switch using the reload
command.
5.0(7) or 5.0(8) 4.2(x) or 4.1(x) Disruptive Disruptive
5.0(4) 5.0(1a) Nondisruptive Nondisruptive
5.0(1a), 5.0(1b), or
5.0(4)
4.2(x) or 4.1(x) Nondisruptive Nondisruptive
Upgrade Path on a Cisco MDS 9509 or 9506 Switch
Current Release Desired Release Expected Behavior Observed Behavior
5.0(7) or 5.0(8) 5.2(x) Nondisruptive
Support for Generation
4 modules is available.
Nondisruptive
Support for Generation
4 modules is available.
5.0(1a), 5.0(1b), or
5.0(4)
5.2(x) Nondisruptive
Support for Generation
4 modules is not
available.
Nondisruptive
Support for Generation
4 modules is not
available.