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7-30
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
OL-23069-06
Chapter 7 Managing the Switch Hardware
Powering I/O Modules Off or On
Powering I/O Modules Off or On
You can power off an I/O module by using the poweroff module slot_number command. To power on
an I/O module, use the no poweroff module slot_number command.
SUMMARY STEPS
1. config t
2. [no] poweroff module slot_number
DETAILED STEPS
Powering Fabric Modules Off or On
You can power off a fabric module by using the poweroff xbar slot_number command. To power on a
fabric module, use the no poweroff xbar slot_number command.
Note If you are going to limit the maximum number of fabric modules (see the “Changing the Amount of
Power Reserved for Fabric Modules” section on page 7-31), make sure that powered-on fabric modules
are in the first n fabric module slots, where n is the new maximum number of fabric modules. For
example, if you are limiting the maximum number of fabric modules to 4, you must make sure that the
four powered-on fabric modules are in fabric slots 1 through 4.
Note If you are powering on more fabric modules than allowed by the current maximum number of fabric
modules, then make sure that the fabric modules that you are powering on are installed in the first n
fabric slots (slots 1 through n), power-on those modules with the no poweroff xbar command, and
change the maximum number of fabric modules to n (see the “Changing the Amount of Power Reserved
for Fabric Modules” section on page 7-31).
SUMMARY STEPS
1. config t
Command Purpose
Step 1
config t
Example:
switch# config t
switch(config)#
Enters configuration mode.
Step 2
poweroff module
slot_number
Example:
switch(config)# poweroff module 1
switch(config)#
Powers off the specified I/O module in the switch.
no poweroff module
slot_number
Example:
switch(config)# no poweroff module 1
switch(config)#
Powers up the specified I/O module in the switch.
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