IBM SAN192C-6 Installation, Service And User Manual page 108

• Insert the standby Supervisor-4 Module into the chassis only when you are prompted to insert
theSupervisor-4 Module during the migration by a mes sage on the system console.
• After the Supervisor-4 Module has been inserted during the migration process, do not remove or
manually reload the standby Supervisor-4 Module.
• Back up all the licenses, configurations, boot flash files before starting the migration process. In case
of any failure or loss of licenses and configuration in the Supervisor-4 Module, disruptive migration
has to be done to upgrade to Supervisor-4 Module. In such a scenario, all the configurations and
licenses have to be applied or installed again. For more information on how to back up the licenses and
configurations, see the "Prerequisites" on page 83.
• Use the show environment power command to display the actual power usage information for the entire
switch.
• Ensure that the current system is running Cisco MDS NX-OS Release 8.4(1) or later on IBM SAN192C-6
or SAN384C-6 Director switches. Ensure that the current system is running Cisco MDS NX-OS Release
8.4(2a) or later on IBM SAN786C-6 Multilayer Director. Use the show version command to view the
current image on the system.
• The migration procedure must be performed during a schedule maintenance period only.
• Nondisruptive backward migration procedure (migrating from a Supervisor-4 Module to a Supervisor-1
Module) is not supported. Backward migration is disruptive (power off and power on the switch).
• In a dual supervisor module scenario, ensure that the standby supervisor module is in the HA-standby
state. If the standby supervisor does not come up in the HA-standby state, then physically remove the
standby supervisor module and initiate the migration on the active supervisor module. Use the show
module command to view the active and standby supervisor modules.
• Do not reload or manually insert or remove any I/O or crossbar fabric switching modules after initiating
the migrate sup kickstart <supervisor4-kickstart-image> system <supervisor4-
system-image> command. Any removal or insertion of I/O or Crossbar Fabric-1 Switching Modules
must be done before initiating the migration process or after the migration is completed.
• Configuration mode is blocked during the migration procedure to prevent any changes. You cannot
press Control+C to cancel the migration procedure until 45 minutes have elapsed after issuing the
migrate sup kickstart <supervisor4-kickstart-image> system<supervisor4-
system-image> command.
• Use the show logging onboard migration status command on any management session to display
the status of the migration. You can use this command during the migration or after the migration is
complete.
• In the system messages (system messages displayed on the console during the migration process)
and the show module command output, Supervisor-1 Module and Supervisor - 1E are displayed as
Supervisor-3 Module.
• Perform the Crossbar Fabric-1 to Crossbar Fabric-3 module migration after the Supervisor-1/
Supervisor-1E to Supervisor-4 Module migration is completed. A mix of Crossbar Fabric-1 with
Supervisor-4 Modules or Crossbar Fabric-3 with Supervisor-1/Supervisor-1E Modules is not supported.
• Ensure that the switch release version and the targeted migration release version is same. Use the show
version command to view the version of the Cisco MDS NX-OS software on the switch.
• If you are using a Supervisor-4 Module for migration that has been already used in a previous MDS
setup, ensure that the Supervisor-4 module has sufficient space on boot flash for copying both the
system and kickstart images before the migration.
• The following table lists the supported release versions for migrating to Supervisor-4 Modules on the
IBM SAN c-type family of switches.
• Product Name
Cisco MDS 9718 Director
Cisco MDS 9710 Director
Cisco MDS 9710 Director
82 IBM Storage Networking SAN192C-6, SAN384C-6 and SAN768C-6: SAN192C-6, SAN384C-6 and
SAN768C-6 Installation, Service, and User Guide
Supported MDS NX-OS Release Version
Cisco MDS NX-OS Release 8.4 (2a) and later
Cisco MDS NX-OS Release 8.4 (1) and later
Cisco MDS NX-OS Release 8.4 (1) and later