Replacing a faulted 15-drive DAE link control card

Customer Replacement Procedure
™
EMC Unity Family
™
EMC Unity Hybrid
Replacing a faulted 15-drive DAE link control
card
302-002-599
REV 02
December 2016
This document describes how to replace a faulted 15-drive DAE link control card in the
Unity 300, Unity 400, Unity 500, Unity 600.
Two link control card (LCC) modules are the back of the 15-drive DAE. You remove an
LCC module from the rear of the DAE.
NOTICE
This procedure involves storage processor (SP) reboots coordinated to ensure that at
least one SP is running at all times. During an SP reboot, data will be unavailable to
front- or back-end connections that are not duplicated on the peer SP.
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Before you start......................................................................................................2
Identifying and locating the faulted 15-drive DAE link control card......................... 7
Replacing the faulted 15-drive DAE link control card.............................................. 8
Verifying the new 15-drive DAE link control card...................................................10
Returning a faulted part......................................................................................... 11
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 instruction on how to identify failures, order new parts and handle
hardware components.
NOTICE
This procedure involves storage processor (SP) reboots coordinated to ensure that at
least one SP is running at all times. During an SP reboot, data will be unavailable to
front- or back-end connections that are not duplicated on the peer SP.
Additional resources
As part of an effort to improve its product lines, EMC periodically releases revisions of
its software and hardware. 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 EMC 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. You can
also access this page from the Unity product family page at: www.emc.com/en-us/
storage/unity.htm. In the Why EMC Unity Storage section, click Unity Product
Resources > Technical Documentation.
Troubleshooting
For information about EMC products, software updates, licensing, and service, go to
EMC 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 EMC 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 EMC 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
EMC uses the following conventions for special notices:
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.
2
EMC Unity Hybrid Customer Replacement Procedure
Replacing a faulted 15-drive DAE link control card
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
NOTICE
Addresses practices not related to personal injury.
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:
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Provide enough room to work on the equipment.
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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.
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Do not remove replacement or upgrade units from their antistatic packaging until
you are ready to install them.
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Before you begin service, gather together the ESD kit and all other materials you
will need.
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Once servicing begins, avoid moving away from the work site; otherwise, you may
build up an electrostatic charge.
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Use ESD anti-static gloves or an ESD wristband (with strap).
If using an ESD wristband with a strap:
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Attach the clip of the ESD wristband to the ESD bracket or bare metal on a
cabinet/rack or enclosure.
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Wrap the ESD wristband around your wrist with the metal button against your
skin.
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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.
Handling replaceable units
3
Customer Replacement Procedure
NOTICE
These precautions are not a substitute for the use of an ESD kit. Follow them only in
the event of an emergency.
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Before touching any unit, touch a bare (unpainted) metal surface of the cabinet/
rack or enclosure.
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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.
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When you remove a unit from the antistatic bag, avoid touching any electronic
components and circuits on it.
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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:
4
…and the OPERATING
environment is this:
…then let the system
or component
acclimate in the new
environment this many
hours:
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
EMC Unity Hybrid Customer Replacement Procedure
Replacing a faulted 15-drive DAE link control card
Table 1 Hardware acclimation times (systems and components) (continued)
If the last 24 hours of the
TRANSIT/STORAGE
environment was this:
Humid
≥60% RH
Unknown
…and the OPERATING
environment is this:
…then let the system
or component
acclimate in the new
environment this many
hours:
<86°F (30°C)
16 hours
<86°F (30°C)
16 hours
NOTICE
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If there are signs of condensation after the recommended acclimation time has
passed, allow an additional eight (8) hours to stabilize.
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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).
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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
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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.
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A sudden jar, drop, or even a moderate vibration can permanently damage some
sensitive replaceable units.
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Do not remove a faulted replaceable unit until you have the replacement available.
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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.
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Avoid touching any exposed electronic components and circuits on the replaceable
unit.
Handling replaceable units
5
Customer Replacement Procedure
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Never use excessive force to remove or install a replaceable unit. Take time to
read the instructions carefully.
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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.
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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.
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:
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Front bezels should always be attached to ensure EMI compliance. Make sure you
reattach the bezel after replacing a component.
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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:
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Grip the hardware to remove or install a component.
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Open or close a latch.
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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)
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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).
EMC Unity Hybrid Customer Replacement Procedure
Replacing a faulted 15-drive DAE link control card
Table 2 Standard touch point colors (continued)
Touch point color Description
Note
Some tasks may require additional steps.
Blue
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.
Identifying and locating the faulted 15-drive DAE link
control card
Before you replace a faulted 15-drive DAE link control card, you must locate it's
placement within the storage system by using Unisphere.
Using Unisphere, locate the faulted 15-drive DAE link control card in the enclosure.
Procedure
1. In Unisphere, select System View.
2. Select the Enclosures page.
3. Locate the faulted 15-drive DAE link control card marked orange and displayed
in the Enclosure view shown.
Unisphere automatically displays the view showing the 15-drive DAE link control
card requiring service.
Figure 1 Faulted LCC location - example
Identifying and locating the faulted 15-drive DAE link control card
7
Customer Replacement Procedure
Replacing the faulted 15-drive DAE link control card
Take the following actions to remove the faulted 15-drive DAE link control card and
install the replacement 15-drive DAE link control card into the system.
Removing an LCC
This procedure describes how to remove an LCC from the DAE.
Before you begin
Identify the faulted LCC by its amber fault LED.
Figure 2 LCC fault LED
CL5658
Procedure
1. Attach an ESD wristband to your wrist and the enclosure in which you are
replacing the LCC.
2. Remove each cable connected to the LCC by gently pulling the connector
latches to release the cable from the connector.
Note where the cables connect to the LCC because you need to reconnect
them later.
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EMC Unity Hybrid Customer Replacement Procedure
Replacing a faulted 15-drive DAE link control card
Figure 3 Removing an LCC cable
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Am
ol
phen
Am
CL5659
3. Turn the captive screws counterclockwise to release the LCC.
4. Remove the LCC from its slot and place it on a clean, static-free surface.
Figure 4 Removing an LCC
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2
CL5660
5. Remove and store the ESD wristband.
Removing an LCC
9
Customer Replacement Procedure
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.
Installing an LCC
Procedure
1. Attach an ESD wristband to your wrist and the enclosure.
2. Gently insert the LCC, being sure the LCC is completely seated in the
enclosure.
3. Secure the LCC with the captive screws.
Figure 5 Installing an LCC
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CL5663
Verifying the new 15-drive DAE link control card
Verify that the new 15-drive DAE link control card 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 15-drive DAE link control card 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 15-drive DAE with the Enclosure dropdown menu and then select
the Rear view. Locate the new link control card shown in this enclosure view.
10
EMC Unity Hybrid Customer Replacement Procedure
Replacing a faulted 15-drive DAE link control card
Figure 6 Replacement LCC location - example
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.
If your screen does not show the Return a Part option, contact your service
provider for instructions on what to do next.
Returning a faulted part
11
Customer Replacement Procedure
Copyright © 2016 EMC Corporation All rights reserved.
Published December 2016
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without notice.
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EMC Unity Hybrid Customer Replacement Procedure
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