CX# DAE3P Replacing LCC- Master 1697911

Here is Your Customized DocumentYour Configuration is:

Action to Perform - ReplaceStorage-System Series - CX3 series storage systemStorage-System Model - CX3-20Replacement Type - Replace DAE Link Control Card (LCC)

Reporting ProblemsTo send comments or report errors regarding this document, please email:[email protected]. For issues not related to this document, contactyour service provider.Refer to Document ID: 1697911

Content Creation Date 2011/5/16



CLARiiON® Storage SystemsReplacing a DAE2P/DAE3P

LCC Module

This document describes how to replace a link control card (LCC) in aCLARiiON® storage system DAE2P or DAE3P disk-array enclosure (DAE).

Topics include:

Handling field replaceable units (FRUs) .......................................... 2Removing an LCC ......................................................................... 4Installing an LCC .......................................................................... 6Verifying the operation of a new or replacement part usingNavisphere Manager..................................................................... 8Returning the failed part ................................................................ 9

1

Handling field replaceable units (FRUs)

This section describes the precautions that you must take and thegeneral procedures you must follow when removing, installing, andstoring any field replaceable unit (FRU).

Power issues and FRUs

Your storage system is designed to be powered on continuously. Mostcomponents are hot swappable; that is, you can replace or install thesecomponents while the storage system is running. Front bezels shouldalways be attached and each compartment should contain a FRU orfiller panel to ensure EMI compliance and proper air flow over theFRUs.

You should not remove a faulty FRU until you have a replacementavailable.

When you replace or install FRUs, you can inadvertently damagethe sensitive electronic circuits in the equipment by simply touchingthem. Electrostatic charge (ESD) that has accumulated on your bodydischarges 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 ofESD damage. Follow the procedures below to prevent damage to theequipment.

Read and understand the following instructions:

Provide enough room to work on the equipment. Clear the worksite of any unnecessary materials or materials that naturally buildup electrostatic charge, such as foam packaging, foam cups,cellophane wrappers, and similar items.

Do not remove replacement or upgrade FRUs from their antistaticpackaging until you are ready to install them.

Before you service a storage system, gather together the ESD kitand all other materials you will need. Once servicing begins, avoidmoving away from the work site; otherwise, you may build up anelectrostatic charge.

An ESD wristband is supplied with your storage system. To use it,attach the clip of the ESD wristband (strap) to any bare (unpainted)metal on the storage system; then put the wristband around yourwrist with the metal button against your skin.

2 Replacing a DAE2P/DAE3P LCC Module

Use the ESD kit when handling any FRU. If an emergency arisesand the ESD kit is not available, follow the procedures in the“Emergency procedures (without an ESD kit)” section.

Emergency procedures (without an ESD kit)

In an emergency when an ESD kit is not available, use the followingprocedures to reduce the possibility of an electrostatic dischargeby ensuring that your body and the subassembly are at the sameelectrostatic potential.

These procedures are not a substitute for the use of an ESD kit. Followthem only in the event of an emergency.

Before touching any FRU, touch a bare (unpainted) metal surface ofthe cabinet or storage system.

Before removing any FRU from its antistatic bag, place one handfirmly on a bare metal surface of the storage system, and at thesame time, pick up the FRU while it is still sealed in the antistaticbag. Once you have done this, do not move around the room ortouch other furnishings, personnel, or surfaces until you haveinstalled the FRU.

When you remove a FRU from the antistatic bag, avoid touchingany electronic components and circuits on it.

If you must move around the room or touch other surfaces beforeinstalling a FRU, first place the FRU back in the antistatic bag. Whenyou are ready again to install the FRU, repeat these procedures.

Replacing a DAE2P/DAE3P LCC Module 3

Removing an LCC

! CAUTION

A DAE must have at least one LCC installed while it is powered up.Do not remove both LCCs while the disk enclosure is powered up.

1. Remove each copper cable connected to the LCC by gently pressingthe connector latches to release the cable (Figure 1).

Note where the cables connect to the LCC; you will need to reconnect themto the replacement LCC.

!!

!!

!

EXP

PRIEXP

PRI

#

!

EXP

PRI EXP

PRI

#

A

B

EMC3212

PRIConnector

PRI

PRI

Figure 1 Removing a copper cable from an LCC (PRI cable shown)

2. Turn the captive screws counterclockwise to release the module,and then remove the LCC from its slot (Figure 2).


!!

!!

!

EXP

PRIEXP

PRI

#

A

B

EMC3227Captive Screw

Captive Screw

!

EXP

PRI EXP

PRI

#

Figure 2 Removing an LCC


Installing an LCC

! CAUTION

If you are replacing a failed LCC, wait at least 30 seconds afterremoving the failed LCC before installing the replacement LCC.

1. Gently push the LCC into the enclosure until it is completely seatedin the enclosure midplane (Figure 3 ).

!!

!!

!

EXP

PRIEXP

PRI#

A

B

EMC3181Captive Screw

Captive Screw

!

EXP

PRI EXP

PRI

#

Figure 3 Installing an LCC

The LCC Power light turns on.

2. Secure the module with the captive screws.

3. Reattach the copper cables (a PRI cable and a possible EXP cable) tothe same connectors from which you removed them (Figure 4 ).

The orientation of the connector for the EXP cable is opposite theorientation of the connector for the PRI cable.


!!

!!

!

EXP

PRIEXP

PRI

#

!

EXP

PRI EXP

PRI

#

A

B

EMC3180

To Previous Enclosure

PRIConnector

PRI

PRI

Figure 4 Reconnecting a copper cable to an LCC (PRI cable shown)

4. Remove and store the ESD wristband.


Verifying the operation of a new or replacement part usingNavisphere Manager

1. Start Navisphere® Manager for the storage system by entering theIP address in a browser window.

2. In the Navisphere Manager Storage tree, locate the icon for thestorage system in which you installed or replaced the part, expandthe storage-system icon, and select the Physical icon.

3. Expand the enclosure in which you installed or replaced the part,and navigate to the part.

4. Verify that the part is in the enclosure and that it is not faulted.


Returning the failed part

Ship the failed part to your service provider as described in theinstructions that were included with the replacement part.


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CX# DAE3P Replacing LCC- Master 1697911