VERITAS 5U84 Manual

Replacing a cooling module in a 5U84 Storage Shelf
Document Number: 228
Version 1.1 (03/05/18)
Purpose
This document describes the process for replacing a cooling module in the 5U84 Storage Shelf.
Electrical Safety
The static discharged by human bodies can damage static-sensitive components on the boards.
When installing and maintaining the equipment, observe appropriate electrostatic safety precautions
to prevent personnel injuries or device damage.
When operating a device in an electrostatic sensitive area, you must take electrostatic-discharge
(ESD)-preventive measures. These include wearing ESD-preventive gloves, an ESD-preventive wrist
strap, and ESD-preventive clothes to avoid personnel injury or device damage.
To prevent damage to the device, pay attention to the following during operations:
• Do not touch devices with bare hands because ESD from the human body may damage the
electrostatically sensitive elements on a board.
• When dealing with the server or any of the internal components, wear an ESD-preventive wrist
strap, ESD-preventive gloves, and ESD-preventive suit.
High availability (HA) appliance service considerations
Attention: A HA or multi-node appliance is serviced in the same manner as a single node appliance.
About the hot swappable 5U84 Storage Shelf cooling modules
The Veritas 5U84 Storage Shelves include five cooling modules and they are hot swappable. The
cooling modules provide cooling to the entire unit, which is suitable to maintain the internal component
temperatures below each components maximum temperature limits.
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Veritas Appliance
Hardware Service Procedure

This section describes how to remove and replace a cooling module in a 5U84 Storage Shelf.
Note: This repair can be done without removing the storage shelf from the rack.
Requirements
Use the following to verify the requirements of the service.
Verify you have the following items
• 5U84 Storage Shelf replacement power supply•
• ESD wrist strap
Removing a 5U84 Storage Shelf cooling module
Use the following steps to remove a faulty cooling module.
To remove a 5U84 Storage Shelf fan module
1Put on an ESD-compliant wrist strap or take other ESD-protective measures.
Caution: You must complete a cooling module swap within three minutes. Leaving the slot open
for longer than three minutes can result in the 5U84 Storage Shelf overheating and causing other
components to fail.
Caution: Operation of the enclosure with any modules missing will disrupt the airflow and the
disk drives will not receive sufficient cooling. It is essential that all apertures are filled before
operating the enclosure system.
2Verify the faulty cooling module.
A faulty cooling module either has an LED that glows amber, or the LED is not lit.
• Example of a faulty cooling module with an LED that glows amber
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HSP #228 - Replacing a 5U84 Storage Shelf cooling module

• Example of a faulty cooling module with an LED that is not lit
3Grasp the faulty cooling module handle and depress the retaining latch.
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HSP #228 - Replacing a 5U84 Storage Shelf cooling module

4Use the built-in handle and pull the cooling module out to remove the module from the 5U84
storage shelf.
5Place the faulty cooling module in an ESD-preventative bag
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HSP #228 - Replacing a 5U84 Storage Shelf cooling module

Installing the replacement cooling module
Use the following steps to install the replacement cooling module.
To install the replacement cooling module
Caution: Handle the replacement cooling module carefully to avoid damaging the connector pins.
Do not install a fan module if any pins appear to be bent.
1Put on a grounded ESD-compliant wrist strap or take other ESD-preventive measures.
2Remove the replacement cooling module from its packaging.
3Orient the replacement cooling module so that the black and orange release latch is on the right
side of the module.
4Slide the replacement cooling module completely into the storage shelf.
A click should be heard as the retaining latch engages.
5Monitor the cooling module LEDs for any faults.
Verify that the LED on the replacement module is green and that the cooling module is moving
air.
6If the LED is not green, or if the cooling module is not moving air, contact Veritas Technical
Support.
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HSP #228 - Replacing a 5U84 Storage Shelf cooling module