in a 25-slot

in a 25-slot
EMC® VNXe®
Replacing a link control card (LCC) in a 25-slot
disk-array enclosure
302-000-217
REV 02
July, 2015
This document describes how to replace a link control card (LCC) in a 25-slot disk-array
enclosure (DAE).
The LCCs are accessible from the rear of the enclosure.
Topics include:
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Before you start..........................................................................................................2
Replacing the faulted hardware component............................................................... 5
Returning a faulted part........................................................................................... 10
Before you start
Before you begin this procedure, ensure that you have received the new part and have
correctly identify its intended location in the system. Refer to your Unisphere online help
(Servicing your system > Adding or replacing faulted hardware components > Replace a
faulted hardware component) for instructions 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 frontor back-end connections that are not duplicated on the peer SP.
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.
Read and understand the following instructions:
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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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EMC VNXe
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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).
Replacing a link control card (LCC) in a 25-slot disk-array enclosure
Emergency procedures (without an ESD kit)
In an emergency when an ESD kit is not available, use the following procedures to reduce
the possibility of an electrostatic discharge by ensuring that your body and the
subassembly are at the same electrostatic potential.
NOTICE
These procedures 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.
Table 1 Hardware acclimation times (systems and components)
If the last 24 hours of the
TRANSIT/STORAGE
environment was this:
Temperature
…then let the system or
component acclimate in
the new environment
this many hours:
…and the OPERATING
environment is this:
Humidity
Nominal
Nominal
68-72°F (20-22°C) 40-55% RH
Nominal 68-72°F (20-22°C)
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
30-45% RH
<86°F (30°C)
4 hours
Humid
45-60% RH
<86°F (30°C)
8 hours
Handling replaceable units
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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 Table
1 on page 3. 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, see:
Avoiding electrostatic discharge (ESD) damage on page 2.
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Handle a replaceable unit gently. A sudden jar, drop, or vibration can permanently
damage some replaceable units.
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Avoid touching any exposed electronic components and circuits on the replaceable
unit.
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Never use excessive force to remove or install a replaceable unit. Take time to read
the instructions carefully.
Replacing a link control card (LCC) in a 25-slot disk-array enclosure
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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 3 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.
Replacing the faulted hardware component
Take the following actions to remove the faulted hardware part and install the
replacement hardware part into the system.
Summary of tasks for replacing an LCC
To replace an LCC you must complete the tasks below in the order in which they appear.
This document provides instructions for completing each task.
1. Identify the faulted LCC.
2. Prepare the storage processor (SP) associated with the faulted LCC for service.
3. Disconnect the SAS cables from the LCC.
4. Remove the faulted LCC from the enclosure.
5. Unpack the replacement LCC.
6. Install the replacement LCC in the enclosure.
7. Reconnect the SAS cables to the replacement LCC.
8. Reboot the SP.
9. Verify the operation of the replacement LCC.
Identifying a faulted LCC
The LCCs are visible from the rear of your DAE.
Replacing the faulted hardware component
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Identify the faulted LCC by the amber fault LED (Figure 1 on page 6).
Figure 1 LCC fault LED
CL4580
Preparing the storage processor (SP) for service
NOTICE
To protect your VNXe system from accidental data loss while you add or replace a faulted
LCC in a DAE connected to you VNXe system, you must prepare the SP associated with the
LCC for service before you replace the LCC. You prepare an SP for service by putting it in
Service mode. Both SPs must NOT be in Service mode at the same time.
Procedure
1. Open Unisphere™.
2. Select Settings > Service System.
3. Log in with your service password.
4. In the System Components list, select the storage processor (SP A or SP B) associated
with the faulted LCC:
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SP A for an LCC A
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SP B for an LCC B
5. Under Service Actions, select Enter Service Mode, then Execute service action.
6. Review the Service Confirmation dialog box and then click OK.
Putting an SP into Service mode takes about 10 minutes to complete. The storage
processor fault LED will flash alternating amber and blue while the SP remains in
Service mode and is receiving active power.
7. Wait until the SP fault LED is flashing alternating amber and blue before continuing to
the next task.
Disconnecting the SAS cables
Remove each cable connected to the LCC by gently pulling the connector latches to
release the cable from the connector (Figure 2 on page 7).
Note where the cables connect to the LCC because you will reconnect them later.
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EMC VNXe
Replacing a link control card (LCC) in a 25-slot disk-array enclosure
Figure 2 Disconnecting a SAS cable
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CL4579
Removing an LCC
Refer to Figure 3 on page 8 while performing the procedure that follows.
Procedure
1. Attach an ESD wristband to your wrist and the enclosure.
NOTICE
When removing an LCC, in addition to holding the latches, be prepared to support the
LCC to avoid dropping it.
2. Locate the orange handle buttons on the LCC handles.
3. Press the orange handle buttons to release the LCC, pull the latches outward, and
remove the LCC from its slot.
4. Place the LCC on a clean, static-free surface.
Removing an LCC
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Figure 3 Removing an LCC
CL4577
Installing a replacement LCC
Refer to Figure 4 on page 8 while performing the procedure that follows.
Procedure
1. Attach an ESD wristband to your wrist and the enclosure.
2. Pull out the latches on the LCC and make sure they stay in the open position.
3. Align the LCC with the enclosure opening and gently push the LCC straight into the
enclosure, being sure the LCC is completely seated in the enclosure.
4. Press the latches to secure the LCC.
Figure 4 Installing an LCC
CL4578
Results
The LCC power LED turns on (Figure 5 on page 9).
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EMC VNXe
Replacing a link control card (LCC) in a 25-slot disk-array enclosure
Figure 5 LCC power LED
CL4580a
Reconnecting the SAS cables
Procedure
1. Reattach the SAS cables to the same connectors from which you removed them
(Figure 6 on page 9).
2. Remove and store the ESD wristband.
Figure 6 Connecting a SAS cable
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CL4579
Reconnecting the SAS cables
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Rebooting an SP
When you have installed a part in the enclosure, reboot the recently serviced SP to ensure
that it leaves Service mode using the procedure that follows.
Procedure
1. From Unisphere, select Settings, then Service System.
2. Log in with your service password.
3. In the System Components column, select the storage processor currently in Service
mode (SP A or SP B).
4. Under Service Actions, select Reboot, then Execute service action.
It may take up to 12 minutes for the system to complete its reboot to return to normal
mode.
5. Either refresh your browser or follow the on-screen instructions to bring the software
out of service mode and restore full-function Unisphere.
Verifying the operation of a part
Verify that the new part is recognized by your system, and operating correctly using the
procedure that follows.
Procedure
1. In Unisphere™, select System > System Health.
2. Select the part in the System Component list or the graphical view:
Note
To verify the status of a part contained within the storage processor, like a battery
backup unit, for example, you must locate the part in the System Component list.
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In the System Component list, the part should be marked with a status OK icon:
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In the graphical view, the part should be highlighted green.
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 > Need more Help? > Customer Replaceable Parts > Return a
Customer Replaceable Part to enter the EMC Online Support website.
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EMC VNXe
Replacing a link control card (LCC) in a 25-slot disk-array enclosure
If your screen does not show the Return a customer replaceable part option, contact
your service provider for instructions on what to do next.
Returning a faulted part
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Copyright © 2014-2015 EMC Corporation. All rights reserved. Published in USA.
Published July, 2015
EMC 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. EMC Corporation 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 EMC software described in this publication requires an applicable software
license.
EMC², EMC, and the EMC logo are registered trademarks or trademarks of EMC Corporation in the United States and other countries.
All other trademarks used herein are the property of their respective owners.
For the most up-to-date regulatory document for your product line, go to EMC Online Support (https://support.emc.com).
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EMC VNXe
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