Fru Removal And Replacement Procedures; In This Chapter; Before Beginning The Installation - Brocade Communications Systems VDX6720 Hardware Reference Manual

FRU Removal and Replacement Procedures

In this chapter

Before beginning the installation

NOTE
Read the
The field-replaceable units (FRUs) in the Brocade VDX 6720/6730 switches can be removed and
replaced without special tools. The switches can continue operating during the FRU replacements
if the conditions specified in the procedure are followed.
CAUTION
This document describes how to change field-replaceable units (FRUs) for units with either a
port-side air exhaust or a port-side air intake. You must replace a failed FRU with a FRU of the
same type. This applies to both power supplies and fan assemblies.
A new FRU must have the same part number (P/N) as the FRU being replaced. The
manufacturing P/N is located on the top of the FRU.
The P/N ends in either -F (front-to-rear airflow) or -R (rear-to-front airflow). You must use a
replacement FRU that has the same airflow designator with the part number.
If a mismatched power source or fan assembly is installed by mistake, a warning is sent to the
console. The warning messages will be similar to the following:
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You can use external labels as a guide. The power supplies and fan assemblies are labeled with an
airflow symbol on the faceplate to indicate whether the assembly takes in or exhausts air. The
symbol also appears on the top of the FRU. All FRUs in a chassis must have the same label affixed
so that airflow direction is consistent.
Brocade VDX 6720/6730 Hardware Reference Manual
53-1002084-01
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Before beginning the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. .. .. 29
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Replacing a combined power supply and fan assembly in a VDX 6720/6730-24 30
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Replacing a power supply FRU in a VDX 6720/6730-60 . . . . . . . . . . . . . . . . . . . . 33
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Replacing a fan assembly in the VDX 6720/6730-60. . . . . . . . . . . . . . . . . . . . . . . 36
"Installation and safety considerations"
For a fan mismatch: [WARNING, VDX 6720/6730, MISMATCH in FAN Air Flow
direction. Replace FRU with fan air flows in same direction.
For a power supply or combined power supply and fan mismatch: [WARNING, VDX 6720,
/6730 MISMATCH in PSU-FAN FRUS Air Flow direction. Replace PSU
air flows in same direction.
on page 7 before servicing.
Figure illustrates examples of the airflow labels.
Chapter
5
with fan
29