EMC CLARiiON DAE2P User manual

CLARiiON® Storage Systems
Replacing a DAE2P/DAE3P
LCC Module
March 29, 2010
This document describes how to replace a link control card (LCC) in a
CLARiiON® storage system DAE2P or DAE3P disk-array enclosure (DAE).
Topics include:
Handling field replaceable units (FRUs).......................................... 2
Removing an LCC......................................................................... 4
Installing an LCC .......................................................................... 6
Verifying the operation of a new or replacement part using
Navisphere Manager..................................................................... 8
Returning the failed part................................................................ 9
1

Handling field replaceable units (FRUs)
This section describes the precautions that you must take and the
general procedures you must follow when removing, installing, and
storing any field replaceable unit (FRU).
Power issues and FRUs
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. Front bezels should
always be attached and each compartment should contain a FRU or
filler panel to ensure EMI compliance and proper air flow over the
FRUs.
You should not remove a faulty FRU until you have a replacement
available.
When you replace or install FRUs, you can inadvertently damage
the sensitive electronic circuits in the equipment by simply touching
them. Electrostatic charge (ESD) 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:
Provide enough room to work on the equipment. 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.
Do not remove replacement or upgrade FRUs from their antistatic
packaging until you are ready to install them.
Before you service a storage system, gather together the ESD kit
and all other materials you will need. Once servicing begins, avoid
moving away from the work site; otherwise, you may build up an
electrostatic 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 your
wrist with the metal button against your skin.
2Replacing a DAE2P/DAE3P LCC Module

Use the ESD kit when handling any FRU. If an emergency arises
and 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 following
procedures to reduce the possibility of an electrostatic discharge
by ensuring that your body and the subassembly are at the same
electrostatic potential.
These procedures are not a substitute for the use of an ESD kit. Follow
them only in the event of an emergency.
Before touching any FRU, touch a bare (unpainted) metal surface of
thecabinetorstoragesystem.
Before removing any FRU from its antistatic bag, place one hand
firmly on a bare metal surface of the storage system, and at the
same time, pick up the FRU while it is still sealed in the antistatic
bag.Onceyouhavedonethis,do not move around the room or
touch other furnishings, personnel, or surfaces until you have
installed the FRU.
When you remove a FRU from the antistatic bag, avoid touching
any electronic components and circuits on it.
If you must move around the room or touch other surfaces before
installing a FRU, first place the FRU back in the antistatic bag. When
you 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 pressing
the connector latches to release the cable (Figure 1).
Note where the cables connect to the LCC; you will need to reconnect them
to the replacement LCC.
!!
!!
!
EXPPRI
EXP
PRI
#
!
EXPPRI
EXP
PRI
#
A
B
EMC3212
PRI
Connector
PRI
PRI
Figure 1 Removing a copper cable from an LCC (PRI cable shown)
2. Turn the captive screws counterclockwise to release the module,
andthenremovetheLCCfromitsslot(Figure2).
4Replacing a DAE2P/DAE3P LCC Module

!!
!!
!
EXPPRI
EXP
PRI
#
A
B
EMC3227
Captive Screw
Captive Screw
!
EXPPRI
EXP
PRI
#
Figure 2 Removing an LCC
Replacing a DAE2P/DAE3P LCC Module 5

Installing an LCC
!CAUTION
If you are replacing a failed LCC, wait at least 30 seconds after
removing the failed LCC before installing the replacement LCC.
1. Gently push the LCC into the enclosure until it is completely seated
in the enclosure midplane (Figure 3 ).
!!
!!
!
EXPPRI
EXP
PRI
#
A
B
EMC3181
Captive Screw
Captive Screw
!
EXP PRI
EXP
PRI
#
Figure 3 Installing an LCC
The LCC Power light turns on.
2. Securethemodulewiththecaptivescrews.
3. Reattach the copper cables (a PRI cable and a possible EXP cable) to
thesameconnectorsfromwhichyouremovedthem(Figure4).
The orientation of the connector for the EXP cable is opposite the
orientation of the connector for the PRI cable.
6Replacing a DAE2P/DAE3P LCC Module

!!
!!
!
EXP PRI
EXP
PRI
#
!
EXP PRI
EXP
PRI
#
A
B
EMC3180
To Previous Enclosure
PRI
Connector
PRI
PRI
Figure 4 Reconnecting a copper cable to an LCC (PRI cable shown)
4. Remove and store the ESD wristband.
Replacing a DAE2P/DAE3P LCC Module 7

Verifying the operation of a new or replacement part using
Navisphere Manager
1. Start Navisphere® Manager for the storage system by entering the
IP address in a browser window.
2. IntheNavisphereManagerStorage tree, locate the icon for the
storage system in which you installed or replaced the part, expand
the 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.
8Replacing a DAE2P/DAE3P LCC Module

Returning the failed part
Ship the failed part to your service provider as described in the
instructions that were included with the replacement part.
Replacing a DAE2P/DAE3P LCC Module 9

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10 Replacing a DAE2P/DAE3P LCC Module