Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS Release 3.1(3) (OL-12208-05, May 2007)

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Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS Release 3.1(3)
OL-12208-05
New Features in Cisco MDS SAN-OS Release 3.1(3)
Downgrading the SSI Image on Your SSM
Use the following guidelines when downgrading your SSI image on your SSM.
• On a system with at least one SSM installed, the install all command might fail on an SSM when
you downgrade from Cisco SAN-OS Release 3.1(3) to any SAN-OS 2.x release earlier than
SAN-OS Release 2.1(2e). Power down the SSM and perform the downgrade. Bring up the SSM with
the new bootvar set to the 2.x SSI image.
• Downgrade the SSI boot images on the SSMs on the switch to a release version supported by your
Cisco SAN-OS release. Refer to the Cisco MDS SAN-OS Release Compatibility Matrix for Storage
Service Interface Images.
• SSM intelligent services traffic switching on SSM ports is disrupted on upgrades or downgrades.
• Fibre Channel switching traffic on SSM ports is not disrupted under the following conditions:
– All SSM applications are disabled. Use the show ssm provisioning CLI command to determine
if any applications are provisioned on the SSM. Use the no ssm enable feature configuration
mode CLI command to disable these features.
– The EPLD version on the SSM is at 0x07 or higher. Use the show version module slot epld
CLI command to determine your EPLD version. Refer to the Cisco MDS 9000 Family Release
Notes for Cisco MDS 9000 EPLD Images to upgrade your EPLD image.
– Refer to the Cisco MDS Storage Services Module Interoperability Support Matrix and to the
“Managing Modules” chapter in the Cisco MDS 9000 Family CLI Configuration Guide,
Release 3.x for information on downgrading your SSM.
New Features in Cisco MDS SAN-OS Release 3.1(3)
This section briefly describes the new features introduced in this release. For detailed information about
the features listed, refer to the Cisco MDS 9000 Family CLI Configuration Guide and the Cisco MDS
9000 Family Fabric Manager Configuration Guide.
Table 7 FICON Downgrade Path from SAN-OS 3.1(3)
To SAN-OS Release with FICON Enabled Downgrade Path
SAN-OS 3.0(2) You can nondisruptively downgrade directly from SAN-OS Release 3.1(3).
SAN-OS 2.0(2b) Use the interface shutdown command to administratively shut any Fibre
Channel ports on Generation 1 modules that are in an operationally down
state before nondisruptively downgrading from SAN-OS Release 3.1(3) to
SAN-OS Release 3.0(2), and then to SAN-OS Release 2.0(2b). An
operationally down state includes Link failure or not-connected, SFP
not present, or Error Disabled status in the output of a show interface
command. When an interface is administratively shut it will then show as
Administratively down. Interfaces that are currently up or trunking do not
need to be shut down.
SAN-OS 1.3(4a) Downgrade to SAN-OS Release 3.0(2). Use the shutdown command to shut
all the ports operationally down and administratively up on all the
Generation 1 modules before nondisruptively downgrading to Release
2.0(2b) and then downgrade to 1.3(4a).