Maintaining Supervisor Modules; Standby Supervisor Boot Variable Version - Cisco DS-C9216I-K9 Configuration Manual

Maintaining Supervisor Modules

Note
Start the upgrade.
Step 6
If you check "version check" before the upgrade process is started, a version check is done. This check
provides information about the impact of the upgrade for each module on the switch. It also shows any
HA-related incompatibilities that might result. You see a final dialog box, prompting you to confirm that
this check should be performed.
Caution If "version check" is enabled, the upgrade will proceed even if your version is newer than the version
you are installing.
Note
Note

Maintaining Supervisor Modules

This section includes general information about replacing and using supervisor modules effectively.

Standby Supervisor Boot Variable Version

If the standby supervisor module's boot variable images are not the same version as those running on the
active supervisor module, the software forces the standby supervisor module to run the same version as
the active supervisor module.
If you specifically set the boot variables of the standby supervisor module to a different version and
reboot the standby supervisor module, the standby supervisor module will only load the specified boot
variable if the same version is also running on the active supervisor module. At this point, the standby
supervisor module is not running the images set in the boot variables.
Cisco MDS 9000 Fabric Manager Switch Configuration Guide
8-4
There is no limit on the number of switches you can upgrade. However, the upgrade is a serial
process; that is, only a single switch is upgraded at a time.
On hosts where the TFTP server can not be started, a warning displays. The TFTP server may
not start because an existing TFTP server is running or because access to the TFTP port 69 has
been denied for security reasons (the default setting on Linux). In these cases, you cannot
transfer files from the local host to the switch.
Before exiting the session, be sure the upgrade process is complete. The wizard displays a status
during processing. Check the lower left-hand corner of the wizard for the status message
"Upgrade Finished." First, the wizard displays the message "Success 1.2(2)" followed a few
seconds later by "InProgress Polling." Then the wizard displays a second message "Success
1.2(2)" before displaying the final "Upgrade Finished."
Chapter 8 Software Images
OL-7753-01