Dell PowerEdge M IO Aggregator Getting Started Manual - Page 33

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1. Internal Ports

FTOS Version Checking

Following the stack-unit number assignment, the master switch performs a

consistency check to ensure both switches in the stack are running the same

FTOS version.

If the master switch determines that both switches are not running the same

FTOS version, the ports on the non-master switch with the incorrect version

are disabled.

To download the required FTOS image from the master switch and reload a

member switch so that it joins the stack, enter the following command in

EXEC Privilege mode:

FTOS# upgrade system stack-unit unit-number partition

Where stack-unit unit-number identifies the switch whose FTOS version

needs to be upgraded; partition identifies the partition on the master switch

from which the FTOS image boots up. For example:

FTOS# upgrade system stack-unit 3 a:

To display the boot partition used on the master switch, enter the show

version command.

To ensure that a stack unit boots from partition a:, enter the commands:

FTOS# configure

FTOS(conf)# boot system stack-uni

unit-number primary system

FTOS(conf)# end

FTOS# write memory

FTOS# power-cycle stack-unit unit-number

NOTE:

When an Aggregator is stacked, booting is supported only from flash

memory; it is not supported over the network using an IP address.

System Initialization

The master switch initializes the stack using the last saved system

configuration file.

If you change the stack configuration, be sure to save the configuration file.

The master switch automatically distributes the configuration file to the

standby master switch.

In case of a split stack in which the master switch and standby master become

disconnected, the last saved configuration is used on both switches. The two

switches now operate as two separate stacks, each consisting of one switch.

Assembling a Switch Stack