Replacing a faulted cooling module

Customer Replacement Procedure
Dell EMC Unity™ Family
Dell EMC Unity All Flash and Unity Hybrid
Replacing a faulted 80-drive DAE cooling module
302-003-777
REV 01
July 2017
This document describes how to replace a faulted 80-drive DAE cooling module in
Unity All Flash and Unity Hybrid systems.
The cooling module, also referred to as a fan, is located inside the enclosure. To access
the cooling modules, release and pull the enclosure out of the cabinet. The enclosure
slides out of the cabinet far enough for you to access its internal components, and then
locks on the rails in the service position so that you cannot pull it out any farther. Each
DAE contains 10 fans: five in the front of the enclosure, and five in the rear of the
enclosure.
Note
You do not have to power down any components to replace a faulted DAE cooling
module.
l
l
l
l
l
Before you start......................................................................................................2
Identifying and locating the faulted 80-drive DAE cooling module.......................... 7
Replacing the faulted 80-drive DAE cooling module............................................... 9
Verifying the new 80-drive DAE cooling module.................................................... 16
Returning a faulted part.........................................................................................17
Customer Replacement Procedure
Before you start
Before you begin this procedure, ensure that you have received the new part and have
correctly identified its intended location in the system. Refer to your Unisphere
Service section for instructions on how to identify failures, order new parts, and
handle hardware components.
Additional resources
As part of an improvement effort, revisions of the software and hardware are
periodically released. Therefore, some functions described in this document might not
be supported by all versions of the software or hardware currently in use. The product
release notes provide the most up-to-date information on product features. Contact
your technical support professional if a product does not function properly or does not
function as described in this document.
Where to get help
Support, product, and licensing information can be obtained as follows:
Product information
For product and feature documentation or release notes, go to Unity Technical
Documentation at: www.emc.com/en-us/documentation/unity-family.htm.
Troubleshooting
For information about products, software updates, licensing, and service, go to Online
Support (registration required) at: https://Support.EMC.com. After logging in, locate
the appropriate Support by Product page.
Technical support
For technical support and service requests, go to Online Support at: https://
Support.EMC.com. After logging in, locate Create a service request. To open a
service request, you must have a valid support agreement. Contact your Sales
Representative for details about obtaining a valid support agreement or to answer any
questions about your account.
Special notice conventions used in this document
DANGER
Indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING
Indicates a hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
NOTICE
Addresses practices not related to personal injury.
2
Unity All Flash and Unity Hybrid Customer Replacement Procedure
Replacing a faulted 80-drive DAE cooling module
Note
Presents information that is important, but not hazard-related.
Handling replaceable units
This section describes the precautions that you must take and the general procedures
that you must follow when removing, installing, and storing any replaceable unit.
Avoiding electrostatic discharge (ESD) damage
When replacing or installing hardware units, you can inadvertently damage the
sensitive electronic circuits in the equipment by simply touching them. Electrostatic
charge that has accumulated on your body discharges through the circuits. If the air in
the work area is very dry, running a humidifier in the work area will help decrease the
risk of ESD damage. Follow the procedures below to prevent damage to the
equipment.
Be aware of the following requirements:
l
Provide enough room to work on the equipment.
l
Clear the work site of any unnecessary materials or materials that naturally build
up electrostatic charge, such as foam packaging, foam cups, cellophane wrappers,
and similar items.
l
Do not remove replacement or upgrade units from their antistatic packaging until
you are ready to install them.
l
Before you begin service, gather together the ESD kit and all other materials you
will need.
l
Once servicing begins, avoid moving away from the work site; otherwise, you may
build up an electrostatic charge.
l
Use ESD anti-static gloves or an ESD wristband (with strap).
If using an ESD wristband with a strap:
l
n
Attach the clip of the ESD wristband to the ESD bracket or bare metal on a
cabinet/rack or enclosure.
n
Wrap the ESD wristband around your wrist with the metal button against your
skin.
n
If a tester is available, test the wristband.
If an emergency arises and the ESD kit is not available, follow the procedures in
Emergency Procedures (without an ESD kit).
Emergency procedures (without an ESD kit)
In an emergency when an ESD kit is not available, use the following precautions to
reduce the possibility of an electrostatic discharge by ensuring that your body and the
subassembly are at the same electrostatic potential.
NOTICE
These precautions are not a substitute for the use of an ESD kit. Follow them only in
the event of an emergency.
l
Before touching any unit, touch a bare (unpainted) metal surface of the cabinet/
rack or enclosure.
Handling replaceable units
3
Customer Replacement Procedure
l
Before removing any unit from its antistatic bag, place one hand firmly on a bare
metal surface of the cabinet/rack or enclosure, and at the same time, pick up the
unit while it is still sealed in the antistatic bag. Once you have done this, do not
move around the room or touch other furnishings, personnel, or surfaces until you
have installed the unit.
l
When you remove a unit from the antistatic bag, avoid touching any electronic
components and circuits on it.
l
If you must move around the room or touch other surfaces before installing a unit,
first place the unit back in the antistatic bag. When you are ready again to install
the unit, repeat these procedures.
Hardware acclimation times
Systems and components must acclimate to the operating environment before
applying power. This requires the unpackaged system or component to reside in the
operating environment for up to 16 hours in order to thermally stabilize and prevent
condensation.
Refer to the table, Table 1 on page 4, to determine the precise amount of
stabilization time required.
Table 1 Hardware acclimation times (systems and components)
If the last 24 hours of the
TRANSIT/STORAGE
environment was this:
Temperature
Humidity
Nominal
68-72°F
(20-22°C)
Nominal
Nominal 68-72°F (20-22°C)
40-55% RH 40-55% RH
0-1 hour
Cold
<68°F (20°C)
Dry
<30% RH
<86°F (30°C)
4 hours
Cold
<68°F (20°C)
Damp
≥30% RH
<86°F (30°C)
4 hours
Hot
>72°F (22°C)
Dry
<30% RH
<86°F (30°C)
4 hours
Hot
>72°F (22°C)
Humid
<86°F (30°C)
30-45% RH
4 hours
Humid
<86°F (30°C)
45-60% RH
8 hours
Humid
≥60% RH
<86°F (30°C)
16 hours
<86°F (30°C)
16 hours
Unknown
4
…and the OPERATING
environment is this:
…then let the system
or component
acclimate in the new
environment this many
hours:
Unity All Flash and Unity Hybrid Customer Replacement Procedure
Replacing a faulted 80-drive DAE cooling module
NOTICE
l
If there are signs of condensation after the recommended acclimation time has
passed, allow an additional eight (8) hours to stabilize.
l
Systems and components must not experience changes in temperature and
humidity that are likely to cause condensation to form on or in that system or
component. Do not exceed the shipping and storage temperature gradient of
45°F/hr (25°C/hr).
l
Do NOT apply power to the system for at least the number of hours specified in
the table, Table 1 on page 4. If the last 24 hours of the transit/storage
environment is unknown, then you must allow the system or component 16 hours
to stabilize in the new environment.
Removing, installing, or storing replaceable units
Use the following precautions when removing, handling, or storing replaceable units:
CAUTION
Some replaceable units have the majority of their weight in the rear of the
component. Ensure that the back end of the replaceable unit is supported while
installing or removing it. Dropping a replaceable unit could result in personal
injury or damage to the equipment.
NOTICE
l
For a module that must be installed into a slot in an enclosure, examine the rear
connectors on the module for any damage before attempting its installation.
l
A sudden jar, drop, or even a moderate vibration can permanently damage some
sensitive replaceable units.
l
Do not remove a faulted replaceable unit until you have the replacement available.
l
When handling replaceable units, avoid electrostatic discharge (ESD) by wearing
ESD anti-static gloves or an ESD wristband with a strap. For additional
information, refer to Avoiding electrostatic discharge (ESD) damage on page 3.
l
Avoid touching any exposed electronic components and circuits on the replaceable
unit.
l
Never use excessive force to remove or install a replaceable unit. Take time to
read the instructions carefully.
l
Store a replaceable unit in the antistatic bag and the specially designed shipping
container in which you received it. Use the antistatic bag and special shipping
container when you need to return the replaceable unit.
l
Replaceable units must acclimate to the operating environment before applying
power. This requires the unpackaged component to reside in the operating
environment for up to 16 hours in order to thermally stabilize and prevent
condensation. Refer to Hardware acclimation times on page 4 to ensure the
replaceable unit has thermally stabilized to the operating environment.
Handling replaceable units
5
Customer Replacement Procedure
NOTICE
Your storage system is designed to be powered on continuously. Most components
are hot swappable; that is, you can replace or install these components while the
storage system is running. However, the system requires that:
l
Front bezels should always be attached to ensure EMI compliance. Make sure you
reattach the bezel after replacing a component.
l
Each slot should contain a component or filler panel to ensure proper air flow
throughout the system.
Unpacking a part
Procedure
1. Wear ESD gloves or attach an ESD wristband to your wrist and the enclosure in
which you are installing the part.
2. Unpack the part and place it on a static-free surface.
3. If the part is a replacement for a faulted part, save the packing material to
return the faulted part.
Standard touch point colors
Touch points are component locations where you can:
l
Grip the hardware to remove or install a component.
l
Open or close a latch.
l
Turn a knob to open, close, or adjust a component.
Standard touch point colors are terra-cotta (orange) or blue.
Note
Within this documentation, the color orange is used instead of terra-cotta for
simplicity.
Table 2 Standard touch point colors
Touch point color Description
Terra-cotta
(orange)
This color indicates that you can perform the task, such as remove a
component with a terra-cotta (orange) lever, while the system remains
powered (up/on).
Note
Some tasks may require additional steps.
Blue
6
This color indicates that a shutdown of the system or component is
required before you can perform the task, such as removing a
component with a blue lever.
Unity All Flash and Unity Hybrid Customer Replacement Procedure
Replacing a faulted 80-drive DAE cooling module
Table 2 Standard touch point colors (continued)
Touch point color Description
Identifying and locating the faulted 80-drive DAE cooling
module
Before you replace a faulted 80-drive DAE cooling module, you must locate its
placement within the storage system by using Unisphere.
Using Unisphere, locate the faulted 80-drive DAE cooling module in the enclosure.
Procedure
1. In Unisphere, select System View.
2. Select the Enclosures page.
Select the 80-drive DAE in the Enclosure dropdown menu and then select the
Top view of the enclosure. Locate the cooling module in this enclosure view.
3. Locate the faulted 80-drive DAE cooling module marked orange and displayed in
the Enclosure view shown.
Identifying and locating the faulted 80-drive DAE cooling module
7
Customer Replacement Procedure
Figure 1 Faulted cooling module 0 - example location
8
Unity All Flash and Unity Hybrid Customer Replacement Procedure
Replacing a faulted 80-drive DAE cooling module
Replacing the faulted 80-drive DAE cooling module
Take the following actions to remove the faulted 80-drive DAE cooling module and
install the replacement 80-drive DAE cooling module into the system.
Opening the door or console
Open the door or console, if one is present.
Procedure
1. Grasp the right side of the console.
2. Pull the console to swing it open.
Removing the front bezel
Figure 2 Removing the front bezel
CL5350
Procedure
1. If the bezel has a lock, insert the key that shipped with your enclosure into the
lock, and turn the key to unlock the bezel.
2. Press the two latch buttons on the bezel surface to release the bezel from the
cabinet.
3. Pull the bezel off the cabinet and put it on a clean, static-free surface.
Removing chassis securing screws
There are three sets of screws that may secure the chassis to the cabinet. The two
black, knurled captive screws secure the chassis cover, and prevent the enclosure
from coming out of the cabinet during service.
Note
The middle set, next to the black, knurled captive screws, are shipping screws and
may have already been removed during a previous service event. These shipping
screws are not reinstalled.
Procedure
1. Using a Philips screwdriver, remove the screws that secure the enclosure to the
cabinet.
Replacing the faulted 80-drive DAE cooling module
9
Customer Replacement Procedure
2. Retain the bottom two screws for reinstallation.
Figure 3 Location of chassis securing screws
Pulling the enclosure chassis out
To access the internal components - disks and fans - you must release and pull the
enclosure out of the cabinet. The enclosure slides out of the cabinet far enough for
you to access its internal components and then locks on the rails in the service
position so that you cannot pull it out any farther.
Refer to Figure 4 on page 10 while you perform the steps in this task.
Procedure
1. Grasp the orange enclosure latch handles by the knurled edges and then pull
them out to release the chassis from the inner rails.
2. Slowly pull the chassis out of the cabinet until it locks in the secure service
position.
Figure 4 Pulling the enclosure out of the cabinet
1
2
CL5369
10
Unity All Flash and Unity Hybrid Customer Replacement Procedure
Replacing a faulted 80-drive DAE cooling module
Locating a faulted fan within a chassis
A faulted fan displays an amber fault LED that is visible when the chassis is pulled
open. Generally, you should not remove a fan unless its amber fault LED is on. Do not
replace a faulted fan until you have a replacement disk with the same part number
available.
There are ten fans within the chassis and the fans are arranged in two separate rows
of five fans each (front and midrange). Each row and instance is labeled with a fan
icon and corresponding number.; front = 0, midrange = 5. Each fan is numbered
sequentially 0-9, left to right, with 0-4 being in the front row.
l
Front row: Fans 0-4
l
Back row (midrange): Fans 5-9
Procedure
1. Using the grid identifiers on the chassis, locate the faulted fan.
Locating a faulted fan within a chassis
11
Customer Replacement Procedure
Figure 5 Enclosure top view: Locating a faulted fan within a chassis
2
1
0 5
12
1
2
3
4
6
3
5
Unity All Flash and Unity Hybrid Customer Replacement Procedure
6
7
8 7 9
4
10
11
12 8 13
14
15
16 9 17
18
19
Replacing a faulted 80-drive DAE cooling module
Figure 5 Enclosure top view: Locating a faulted fan within a chassis (continued)
The bottom of the figure is the front of the enclosure.
2. Verify that the amber fault LED displays on that fan assembly.
Figure 6 Fan top view: Location of amber fault LED
CL5364
Removing a fan module
Refer to Figure 7 on page 13 when you perform the procedure that follows.
Procedure
1. On the top of the fan module, push the orange release tab to release the latch.
2. Lift the latch and slowly pull the fan module from the chassis.
3. Place the fan module on a static-free surface.
Figure 7 Removing a fan module
1
2
3
CL5357
Unpacking a part
Procedure
1. Wear ESD gloves or attach an ESD wristband to your wrist and the enclosure in
which you are installing the part.
2. Unpack the part and place it on a static-free surface.
3. If the part is a replacement for a faulted part, save the packing material to
return the faulted part.
Removing a fan module
13
Customer Replacement Procedure
Installing a fan module
Refer to Figure 8 on page 14 when you perform the procedure that follows.
Procedure
1. With the fan module latch fully open, align the fan module with the guides and
gently lower the fan into the slot until the fan connector is fully seated.
Note
Do NOT push the black latch downward (next step) until the fan is fully seated.
2. Push the latch downward and past the orange tab until it snaps securely in
place.
3. After the latch is engaged, push down firmly on the fan module to verify that it
is properly seated.
Figure 8 Installing a fan module
1
2
3
CL5358
Inserting chassis-securing screws
The chassis-securing screws prevent removal of the DAE using the orange release
handles. They also secure the DAE chassis to the cabinet rails in the event the cabinet
needs to be moved. Ensure that these securing screws have been re-installed after
servicing the cabinet.
Procedure
1. Using the orange enclosure latch handles, push the chassis completely into the
cabinet.
2. Ensure that the self-locking latches are pushed in and fully engaged, and the
enclosure cannot slide back out of the cabinet.
14
Unity All Flash and Unity Hybrid Customer Replacement Procedure
Replacing a faulted 80-drive DAE cooling module
Figure 9 Inserting the chassis into the cabinet and securing with captive screws
1
2
CL5383
3. Insert the chassis-securing screws.
Using a Philips screwdriver, insert a securing screw into the bottom hole on
each side of the enclosure.
Note
The top set of screws are shipping screws, and are not re-installed.
Figure 10 Installing the chassis-securing screws
Inserting chassis-securing screws
15
Customer Replacement Procedure
Installing the front bezel
Figure 11 Installing the front bezel
CL5350
Procedure
1. Align the bezel with the enclosure.
2. Gently push the bezel into place on the cabinet until it latches.
3. If the bezel has a lock, insert the key that shipped with your enclosure into the
lock, and turn the key to lock the bezel.
Closing the console
If you opened the console for access to the enclosure with the part you added or
replaced, close the console using the procedure that follows.
Procedure
1. Grasp the free side of the console, and swing the console to the right to close it
2. Gently push on the console until it is closed.
Verifying the new 80-drive DAE cooling module
Verify that the new 80-drive DAE cooling module is recognized by your system, and
operating correctly using the procedure that follows.
Procedure
1. In Unisphere, select System View.
2. On the Summary page, confirm that the system status is OK.
3. Select the Enclosures page.
4. Verify that the 80-drive DAE cooling module appears with OK status in the
enclosure view.
You may need to refresh Unisphere by clicking on the refresh icon next to the
Enclosures view.
Select the 80-drive DAE in the Enclosure dropdown menu and then select the
Top view of the enclosure. Locate the cooling module in this enclosure view.
16
Unity All Flash and Unity Hybrid Customer Replacement Procedure
Replacing a faulted 80-drive DAE cooling module
Figure 12 Replacement cooling module 0 - example location
If the system health monitor shows the part as faulted, contact your service
provider.
Returning a faulted part
We appreciate the return of defective material within 5 business days (for US
returns). For International customers, please return defective material within 5-10
business days. All instructions and material required to return your defective part were
supplied with your good part shipment.
Procedure
1. Package the faulted part in the shipping box that contained the replacement
part, and seal the box.
2. Ship the failed part to your service provider as described in the instructions that
were included with the replacement part.
3. (Optional) For more information about returning customer-replaceable parts,
from Unisphere, click Support > Replace Disk Drives, Power Supplies, and
Other Parts > Return a Part to display the part return instructions.
Returning a faulted part
17
Customer Replacement Procedure
If your screen does not show the Return a Part option, contact your service
provider for instructions on what to do next.
18
Unity All Flash and Unity Hybrid Customer Replacement Procedure
Replacing a faulted 80-drive DAE cooling module
Copyright © 2017 Dell Inc. or its subsidiaries. All rights reserved.
Published July 2017
Dell believes the information in this publication is accurate as of its publication date. The information is subject to change without notice.
THE INFORMATION IN THIS PUBLICATION IS PROVIDED “AS-IS.“ DELL MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WITH
RESPECT TO THE INFORMATION IN THIS PUBLICATION, AND SPECIFICALLY DISCLAIMS IMPLIED WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. USE, COPYING, AND DISTRIBUTION OF ANY DELL SOFTWARE DESCRIBED IN THIS PUBLICATION
REQUIRES AN APPLICABLE SOFTWARE LICENSE.
Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be the property of their respective owners.
Published in the USA.
Returning a faulted part
19