Brocade Communications Systems 6510 Installation Guide download pdf (Page 42)

Removing and replacing a power supply and fan assembly

This section describes how to change field replaceable units (FRUs). You must replace a failed FRU

with a FRU of the same type. 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 two FRU assemblies

concurrently installed in the chassis must be of the same type (AC or DC), model (airflow direction),

and must have the same part number. If a mismatched airflow model is installed by mistake, a warning

is sent to the console. The warning messages will be similar to the following: For a power supply or

combined power supply/fan mismatch - [WARNING, BR6510, MISMATCH in PSU-FAN FRUS Air

Flow direction. Replace PSU with fan air flows in same direction.

CAUTION

Ensure that the airflow direction of the power supply unit matches that of the installed fan tray.

The power supplies and fan trays are clearly labeled with either a green arrow with an "E", or

an orange arrow with an "I."

You can use an external label or lack thereof as a guide. The exhaust FRUs are labeled with an

airflow symbol on the faceplate to indicate that the assembly exhausts air. The symbol also appears

on the top of the FRU. All FRUs in a chassis must be of the same type so that airflow direction is

consistent.

See the following two switch samples for the Fan Direction values in the chassisShow outputs.

ras222:FID128:root> chassisshow

FAN Unit: 1

Fan Direction: Reverse

Time Awake: 0 days

FAN Unit: 2

Fan Direction: Reverse

Time Awake: 0 days

POWER SUPPLY Unit: 1

Power Source: DC

Time Awake: 0 days

(output truncated)

ras223:FID128:root> chassisshow

FAN Unit: 1

Fan Direction: Forward

Time Awake: 0 days

FAN Unit: 2

Fan Direction: Forward

Time Awake: 0 days

POWER SUPPLY Unit: 1

Power Source: AC

Time Awake: 0 days

(output truncated)

The Brocade 6510 has two power supply and fan assemblies, as displayed in the following figure.

Fabric OS identifies the assemblies from right to left on the nonport side as assembly 1 and assembly

2. (The actual appearance of the Brocade 6510 may differ slightly from this illustration but the

locations are correct.)

Removing and replacing a power supply and fan assembly

42 Brocade 6510 Hardware Installation Guide

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