Software Upgrade Methods; Determining Software Compatibility - HP Cisco MDS 9216 - Fabric Switch Configuration Manual

Chapter 15 Software Images
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
Note Prior to Cisco SAN-OS Release 3.0, to preserve the FC IDs in your configuration, verify that the
persistent FC ID feature is enabled before rebooting. This feature is enabled by default. In earlier
releases, the default is disabled. See the

Software Upgrade Methods

You can upgrade software without any disruptions using the Cisco MDS SAN-OS software designed for
mission-critical high availability environments. To realize the benefits of nondisruptive upgrades on the
Cisco MDS 9500 Directors, we highly recommend that you install dual supervisor modules.
You can upgrade any switch in the Cisco MDS 9000 Family using one of the following methods:
•
•
In some cases, regardless of which process you use, the software upgrades may be disruptive. These
exception scenarios can occur under the following conditions:
•
•
Note

Determining Software Compatibility

If the running image and the image you want to install are incompatible, the software reports the
incompatibility. In some cases, you may decide to proceed with this installation. If the active and the
standby supervisor modules run different versions of the image, both images may be HA compatible in
some cases and incompatible in others.
Compatibility is established based on the image and configuration:
•
OL-16184-01, Cisco MDS SAN-OS Release 3.x
If the switching module(s) are not compatible with the new supervisor module image, some
Note
traffic disruption may be noticed in the related modules, depending on your configuration.
These modules are identified in the summary when you use the Installation Wizard. You can
choose to proceed with the upgrade or end at this point.
Note The Software Install Wizard displays a summary of changes that are made to your
configuration.
Automatic - you can use the Fabric Manager Software Install Wizard for Cisco MDS SAN-OS
switches as described in the
Manual - for information on manual upgrades, see the Cisco MDS 9000 Family CLI Configuration
Guide or the Cisco MDS 9020 Switch Configuration Guide and Command Reference.
A single supervisor module system with kickstart or system image changes.
A dual supervisor module system with incompatible system software images.
For high availability, you need to connect the ethernet port for both active and standby
supervisors to the same network or virtual LAN. The active supervisor owns the one IP address
used by these ethernet connections. On a switchover, the newly activated supervisor takes over
this IP address.
Image incompatibility—The running image and the image to be installed are not compatible.
"FC IDs" section on page
"Using the Software Install Wizard" section on page
Cisco MDS 9000 Family CLI Configuration Guide
Software Upgrade Methods
25-16.
15-8.
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