Cisco Cisco MDS 9000 NX-OS Software Release 4.1 安装指南

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

Cisco MDS 9000 NX-OS Release 4.1(x) and SAN-OS 3.3(x) Software Upgrade and Downgrade Guide

OL-17268-01, Cisco MDS NX-OS Release 4.1(3)

Downgrading from NX-OS Release 4.1

To downgrade from NX-OS Release 4.1, you must first downgrade to SAN-OS Release 3.3(x) and then
downgrade to an earlier release.

The following sections describe how to perform downgrades on an MDS 9513 switch:

•

Downgrading from NX-OS Release 4.1(x) to SAN-OS Release 3.3(x) on an MDS 9513 Multilayer
Director with Higher Bandwidth Capability, page 29

•

Downgrading from NX-OS Release 4.1(x) to SAN-OS Release 3.3(x) on an MDS 9513 Multilayer
Director Without Higher Bandwidth Capability, page 37

To determine whether high bandwidth capability is enabled, issue the show hardware fabric-mode
command. The following example shows that the higher bandwidth capability has not been activated:

switch# show hardware fabric-mode

Fabric mode supports only one configuration of 8G FC modules - 4/44 Host-Optimized 8G FC

module.

switch#

The following example shows that the higher bandwidth capability has been activated:

switch# show hardware fabric-mode

Fabric mode supports 8G FC and above modules.

switch#

The following sections describe how to perform downgrades on an MDS 9509 and MDS 9506 switch:

•

Downgrading from NX-OS Release 4.1(x) to SAN-OS 3.3(x) on an MDS 9509 or MDS 9506 Switch
with an Installed Generation 3 8-Gbps Fibre Channel Switching Module, page 42

•

Downgrading from NX-OS Release 4.1(x) to SAN-OS Release 3.3(x) on an MDS 9509 or MDS
9506 Switch Without an Installed Generation 3 8-Gbps Fibre Channel Switching Module, page 49

The following section describes how to perform a downgrade on an MDS 9222i switch:

•

Downgrading from NX-OS Release 4.1(x) to SAN-OS Release 3.3(x) on an MDS 9222i Switch,
page 55

For information on supported chassis and modules, refer to

“NX-OS Release 4.1(x) Supported

Hardware” section on page 3

. For information on the procedures for installing and upgrading software

for Intelligent Storage Services on the Cisco MDS 9000 Family Storage Services Module (SSM), refer
to the

Cisco MDS 9000 Family Storage Services Module Software Installation and Upgrade Guide

Note

If you are running NX-OS Release 4.1(x) in combination with the SSI Release 4.1(x) image and you
wish to downgrade to SAN-OS Release 3.3(2) with the SSI Release 3.2(3s) image, you must delete all
SANTap configurations prior to the downgrade. Downgrading without completely deleting the SANTap
configurations is not supported.