Saving The Module Configuration; Purging The Module Configuration; Changing The Amount Of Power Reserved For Fabric Modules - Cisco Nexus 7000 Hardware Installation And Reference Manual

Saving the Module Configuration

Saving the Module Configuration
To save the new configuration to nonvolatile storage, use the copy running-config startup-config
command from EXEC mode. Once you enter this command, the running and the startup copies of the
configuration are identical.
Table 8-7
.
Table 8-7
Scenario
A particular switching module is removed and you used
the copy running-config startup-config command again.
A particular switching module is removed and the same
switching module is replaced before you enter the copy
running-config startup-config command again.
A particular switching module is removed and replaced
with the same type switching module, and you entered the
reload module number command.
A particular switching module is reloaded when you enter
the reload module number command.

Purging the Module Configuration

To delete the configuration in an empty slot or in a slot with a powered-down I/O module, use the purge
module slot running-config command from EXEC mode. This command clears the running
configuration for the specified slot. This command does not work on supervisor modules or on any slot
that currently has a powered-up module. This command only works on an empty slot (where the
specified module once resided) or on a slot with a powered-down I/O module.
The purge module command clears the configuration for any module that previously existed in a slot
and has since been removed or powered down. While the module was in that slot, some parts of the
configuration may have been stored in the running configuration and cannot be reused (for example, IP
addresses), unless you clear that from the running configuration.
For example, suppose you create an IP storage configuration with a 48-port 10/100/1000 Ethernet I/O
module in slot 3 in Switch A. This module uses an IP address. You decide to remove this I/O module and
move it to Switch B, and you no longer need the IP address. If you try to configure this unused IP address,
you will receive an error message that prevents you from proceeding with the configuration. In this case,
you need to enter the purge module 3 running-config command to clear the old configuration in Switch
A before using the IP address.

Changing the Amount of Power Reserved for Fabric Modules

By default, each Cisco Nexus 7000 Series system reserves enough power for the maximum quantity
(five) of fabric modules that can be installed in its chassis. If you have installed fewer than five fabric
modules and need to free up unused reserve power for I/O modules, you can power down the unused
slots and specify a smaller maximum number of fabric modules.
Before you can change the maximum number of fabric modules, you must do all of the following:
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
8-30
displays various scenarios when module configurations are preserved or lost.
Switching Module Configuration Status
Appendix 8 Managing the Switch Hardware
Consequence
The configured module information is lost.
The configured module information is
preserved.
The configured module information is
preserved.
The configured module information is
preserved.
OL-23069-06