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Cisco Nexus 7000 Series Hardware Installation and Reference Guide
OL-23069-06
Appendix 8 Managing the Switch Hardware
Information About Fan Trays
•
Make sure that the fabric modules that you are using are installed in slots 1 through x where x is the
new maximum number of fabric modules.
You do not have to fill all of those slots with fabric modules, but the fabric modules that you will be
using must be in those slots. For example, if you specify 4 as the new maximum number of fabric
modules, you must make sure that the fabric modules that you are using are in slots 1 through 4.
Also, make sure that any empty fabric module slots have blank modules installed in them.
•
Make sure that each of the installed fabric modules is powered up by using the
no poweroff xbar
slot
_
number
command (see the
“Shutting Down a Fabric Module” section on page 8-22
).
•
Power down the unused slots by using the
poweroff xbar
slot
_
number
command (see the
“Shutting
Down a Fabric Module” section on page 8-22
).
To specify a different maximum number of fabric modules for your system, use the
hardware fabrics
max
number
command. To verify the status of the installed fabric modules, use the
show module xbar
command (see the
“Verifying the Status of a Module” section on page 8-18
). To verify the amount of
reserved power, use the
show environment power
command (see the
“Displaying Power Usage
Information” section on page 8-9
).
Note
Power allocations differ for fabric modules depending on the type of fabric module (for example,
fabric-1 versus fabric-2) and for the switch model (for example, Cisco Nexus 7004 versus Cisco Nexus
7018).
SUMMARY STEPS
1.
config t
2.
hardware fabrics max
number
DETAILED STEPS
Information About Fan Trays
Hot-swappable fan trays are provided in all switches in the Cisco Nexus 7000 Series to manage airflow
and cooling for the entire switch. Each fan tray contains multiple fans to provide redundancy. The switch
can continue functioning in the following situations:
•
One or more fans fail within a fan tray—Even with multiple fan failures, the Cisco Nexus 7000
Series switch can continue functioning. When a fan fails within a tray, the functioning fans in the
module increase their speed to compensate for the failed fans.
Command
Purpose
Step 1
config t
Example:
switch# config t
switch(config)#
Starts the global configuration mode.
Step 2
hardware fabrics max
number
Example:
switch(config)# hardware fabrics max 4
switch(config)#
Powers off the specified fabric module in the switch. For
the number, use a digit between 1 and 5, inclusive.
Содержание Nexus 7004
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