EMC
2-Gigabit Disk-Array Enclosure (DAE2)
FC and ATA Models
HARDWARE REFERENCE
P/N 014003048
REV A02
EMC Corporation
Corporate Headquarters
Hopkinton, MA 01748-9103
(800) 424-EMC2
http://www.EMC.com
:
Copyright © 2002, 2003 EMC Corporation. All rights reserved.
Published February, 2003
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.
Trademark Information
EMC2, EMC, CLARiiON, and Navisphere are registered trademarks and Access Logix, ControlCenter, MirrorView, PowerPath, SAN Copy, and
SnapView are trademarks of EMC Corporation.
All other trademarks used herein are the property of their respective owners.
ii
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Regulatory Notices
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Testing was done with shielded cables. Therefore, in order to comply with the FCC regulations, you must use shielded
cables with your installation. Changes or modifications to this unit not expressly approved by the party responsible
for compliance could void the user's authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own expense.
This Class A digital apparatus complies with Canadian ICES-003
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada
Manufacturer’s Declaration of Conformity - CE mark
This equipment has been tested and found to comply with the requirements of European Community Council
Directives 89/336/EEC, 73/23/EEC, and 98/68/EEC relating to electromagnetic compatibility and product safety
respectively.
This product complies with EN55022, CISPR22 and AS/NZS 3548 Class A.
This is a Class A product. In a domestic environment this product may cause radio interference in which case the user
may be required to take adequate measures.
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
iii
iv
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Contents
Preface............................................................................................................................. ix
Warnings and Cautions......................................................................................... xiii
Chapter 1 About DAE2 Disk Enclosures
Introduction...................................................................................... 1-2
Midplane.................................................................................... 1-6
Front Bezel................................................................................. 1-6
Link Control Cards (LCCs)............................................................. 1-7
Disk Modules.................................................................................... 1-8
Disk Drives ................................................................................ 1-8
Drive Carrier ............................................................................. 1-8
Power Supply/System Cooling Modules .................................... 1-9
Chapter 2 Installing a DAE2
Requirements.................................................................................... 2-2
Site Requirements..................................................................... 2-2
Cabling Requirements.............................................................. 2-2
Installing a Disk Enclosure in a Cabinet....................................... 2-3
Warnings and Recommendations .......................................... 2-3
Setting Up an Installed Disk Enclosure........................................ 2-4
Powerup and Initialization........................................................... 2-11
Binding Disk Modules into RAID Groups................................. 2-12
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
v
Contents
Chapter 3 Servicing a DAE2
Monitoring Disk Enclosure Status ................................................ 3-2
Handling FRUs ................................................................................ 3-6
Power Issues and FRUs ........................................................... 3-6
Avoiding Electrostatic Discharge (ESD) Damage................ 3-6
Emergency Procedures (Without an ESD Kit)...................... 3-7
Precautions When Removing, Installing, or Storing FRUs 3-8
Replacing or Adding a Disk Module............................................ 3-9
Unlocking and Removing the Front Bezel.......................... 3-10
Removing a Disk Filler Module ........................................... 3-11
Removing a Disk Module...................................................... 3-11
Installing a Disk or Filler Module ........................................ 3-12
Installing and Locking the Front Bezel................................ 3-14
Replacing an LCC Module ........................................................... 3-15
Removing an LCC .................................................................. 3-15
Installing an LCC.................................................................... 3-16
Replacing a Power Supply/System Cooling Module .............. 3-20
Appendix A Technical Specifications
Enclosure Specifications ............................................................... A-2
Ac Power Requirements......................................................... A-2
Size and Weight ....................................................................... A-3
Drive Type ................................................................................ A-3
LCC FC-AL Interface .............................................................. A-3
Standards Certification and Compliance............................. A-4
Fibre Channel Related Standards.......................................... A-4
Operating Limits ............................................................................ A-5
Shipping and Storage Requirements.................................... A-5
Index................................................................................................................................ i-1
vi
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Figures
Figures
1-1 DAE2 .............................................................................................................. 1-2
1-2 DAE2 Front LED Display ............................................................................ 1-4
1-3 Disk Enclosure Rear View ........................................................................... 1-5
1-4 Disk Enclosure Rear Displays ..................................................................... 1-5
1-5 Disk Enclosure Front Bezel ......................................................................... 1-6
1-6 LCC Connectors and LEDs ......................................................................... 1-7
1-7 Disk Modules ................................................................................................ 1-8
1-8 Power Supply/System Cooling Module ................................................... 1-9
2-1 Setting the Enclosure Address (EA) .......................................................... 2-5
2-2 Plugging in the ac Line Cord ...................................................................... 2-6
2-3 Connecting DAE2 Power Cords ................................................................. 2-7
2-4 Connecting a Disk Enclosure to Another FC Device .............................. 2-8
2-5 Cabling Disk Enclosures Together — Standard Configuration ............. 2-9
2-6 Cabling Disk Enclosures Together —
Segregated Loop Configuration .............................................................. 2-10
3-1 Front Disk Enclosure and Disk Module Status Lights
(Bezel Removed) ........................................................................................... 3-2
3-2 Enclosure Address and Loop ID Indicators ............................................. 3-4
3-3 Power Supply/System Cooling Module Status Indicators .................... 3-4
3-4 LCC Status LEDs .......................................................................................... 3-5
3-5 Unlocking and Removing the Front Bezel .............................................. 3-10
3-6 Removing a Disk Filler Module (FC Disk Carrier Shown) ................... 3-11
3-7 Removing a Disk Module (FC Disk Carrier Shown) ............................. 3-12
3-8 Installing a Disk or Filler Module (FC Disk Carrier Shown) ............... 3-13
3-9 Installing and Locking the Front Bezel .................................................... 3-14
3-10 Removing a Copper Cable from an LCC ................................................ 3-15
3-11 Removing an LCC ...................................................................................... 3-16
3-12 Installing an LCC ........................................................................................ 3-17
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
vii
Figures
3-13 Reconnecting a Copper Cable to an LCC ................................................ 3-18
3-14 Connecting Disk Enclosures Together with Copper Cable .................. 3-19
3-15 Turning Off a Supply’s Power and Unplugging Its ac Power Cord ... 3-20
3-16 Removing a Power Supply/System Cooling Module ........................... 3-21
3-17 Installing a Power Supply/System Cooling Module ............................. 3-21
3-18 Plugging in the Power Cord and Turning on Power ............................. 3-22
viii
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Preface
This manual is your primary source of information about EMC
2-Gigabit Disk-Array Enclosure (DAE2) hardware. It covers DAE2
models that use Fibre Channel disks, and DAE2-ATA models that
include Advanced Technology Attachment drives.
The DAE2 is often called a disk enclosure.
Audience This guide is part of the DAE2 documentation set, and is intended for
use by system administrators and others responsible for the
installation, setup, and maintenance of the product.
Readers of this guide are expected to be familiar with the following
topics:
◆ Storage-system operation
◆ Basic computer hardware safety and maintenance procedures.
Organization The information in this guide is organized as follows:
Chapter 1, About DAE2 Disk Enclosures, provides a descriptive
overview of the disk enclosure.
Chapter 2, Installing a DAE2, describes how to set up and power up
the enclosure(s) in your cabinet.
Chapter 3, Servicing a DAE2, provides instructions and procedures for
recognizing and replacing failed components.
Appendix A, Technical Specifications, lists operating limits, shipping
and storage requirements, and technical specifications.
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
ix
Preface
Related
Documentation
This guide refers to various documents that provide detailed
descriptions of each step. The most current versions of DAE2
documentation are available on the EMC Powerlink website,
http://powerlink.emc.com
. Once logged in to Powerlink, select
Support (or Services), then Document Library, CLARiiON,
CLARiiON Fibre Channel Storage (FC) and then CLARiiON FC
Hardware, CLARiiON FC Core Software, or CLARiiON FC
Software for lists and .pdf copies of relevant manuals, notes, and
articles, including:
Cabinet Setup Guide for the 40U Cabinet (P/N 014003099)
Site Preparation and Unpacking Guide for the 40U Cabinet
(P/N 014003100)
EMC Rails and Enclosures Installation Guide for 19-Inch NEMA Cabinets
(P/N 014003082)
EMC 2-Gigabit Disk Enclosure (DAE2) Setup Guide (P/N 014003104)
EMC ControlCenter Navisphere Manager Revision 6.X Administrator’s
Guide (P/N 069001161)
EMC Storage System CX400-Series and CX600-Series Configuration
Planning Guide (P/N 014003113)
EMC Fibre Channel Storage System CX-200
Configuration Planning
Guide (P/N 014003115)
Conventions Used in
x
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
This Guide
!
EMC ControlCenter Navisphere Version 6.X Security Administrator’s
Guide (P/N 069001124)
EMC Installation Roadmap for CX-Series and FC-Series Storage Systems
(P/N 069001166)
EMC uses the following conventions for notes, cautions, warnings,
and danger notices.
A note presents information that is important, but not hazard-related.
CAUTION
A caution contains information essential to avoid data loss or
damage to the system or equipment. The caution may apply to
hardware or software.
Preface
WARNING
A warning contains information essential to avoid a hazard that can
cause severe personal injury, death, or substantial property damage
if you ignore the warning.
DANGER
A danger notice contains information essential to avoid a hazard
that will cause severe personal injury, death, or substantial property
damage if you ignore the message.
Typographical Conventions
EMC uses the following type style conventions in this guide:
This
typeface
Indicates text (including punctuation) that you type
verbatim, all commands, pathnames, filenames,
and directory names. It indicates the name of a
dialog box, field in a dialog box, menu, menu
option, or button.
This typeface Represents variables for which you supply the
values; for example, the name of a directory or file,
your username or password, and explicit
arguments to commands.
This
typeface
x -> y
Represents a system response (such as a message or
prompt), a file or program listing.
Represents a menu path. For example, Operations
-> Poll All Storage Systems tells you to select Poll
All Storage Systems on the Operations menu.
[ ]
|
Encloses optional entries.
Separates alternative parameter values; for
example:
LUN-name | LUN-number means you can use either
the LUN-name or the LUN-number.
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
xi
Preface
Where to Get Help For questions about technical support and service, contact your
service provider.
If you have an EMC service contract, contact EMC Customer Service
at:
United States: (800) 782-4362 (SVC-4EMC)
Canada: (800) 543-4782 (543-4SVC)
Worldwide: (800) 497-7901
Follow the voice menu prompts to open a service call, then select
CLARiiON Product Support.
Sales and Customer
Service Contacts
For the list of EMC sales locations, please access the EMC home page
at:
http://www.emc.com/contact/
For additional information on the EMC products and services
available to customers and partners, refer to the EMC Powerlink Web
site at:
http://powerlink.emc.com
Your Comments Your suggestions will help us continue to improve the accuracy,
organization, and overall quality of the user publications. Please send
a message to techpub_comments@emc.com with your opinions of
this guide.
xii
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Warnings and
Cautions
The following warnings and cautions pertain throughout this guide.
WARNING
Trained service personnel only.
This unit has two power supply cords. To reduce the risk of electric
shock, disconnect both power supply cords before servicing.
Ground circuit continuity is vital for safe operation of the machine.
Never operate the machine with grounding conductors disconnected.
Remember to reconnect any grounding conductors removed for or
during any installation procedure.
Resérvé au personnel autorisé.
Cet appareil comporte plus d'un cordon d'alimentation. Afin de
prévenir les chocs électriques, débrancher les deux cordons
d'alimentation avant de faire le dépannage.
Un circuit de terre continu est essentiel en vue du fonctionnement
sécuritaire de l'apareil. Ne jamais mettre l'appareil en marche lorsque
le conducteur de mise a la terre est débranché.
Nur für Fachpersonal.
Das Geraet hat mehr als eine Anschlussleitung. Zur Vermeidung der
Gefahr eines elektrischen Schlages sind vor dem öffnen beide
Anschlussleitungen vom Netz zu trennen.
STROMSTREUVERLUST: Gerät muss geerdet werden, bevor es am
Stromnetz angeschlossen wird.
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
xiii
Warnings and Cautions
!
CAUTION
Trained personnel are advised to exercise great care at all times
when working on the unit. Remember to:
◆ Remove rings, watches, or other jewelry and neckties before
you begin any procedures.
◆ Use caution near any moving part and any part that may start
unexpectedly such as fans, motors, solenoids, and so on.
◆ Always use the correct tools for the job.
◆ Always use the correct replacement parts.
◆ Keep all paperwork, including incident reports, up to date,
complete, and accurate.
Static Precautions EMC incorporates state-of-the-art technology in its designs, including
the use of LSI and VLSI components. These chips are very susceptible
to damage caused by static discharge and need to be handled
accordingly.
!
CAUTION
Before handling printed-circuit boards or other parts containing
LSI and/or VLSI components, observe the following precautions:
◆ Store all printed-circuit boards in antistatic bags.
◆ Use a ground strap whenever you handle a printed-circuit
board.
◆ Unless specifically designed for nondisruptive replacement,
never plug or unplug printed-circuit boards with the power on.
Severe component damage may result
Replacing the Lithium Battery
xiv
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
The CX200LC LCC includes a lithium battery that only trained
personnel should change or replace.
WARNING
Danger of explosion if battery is incorrectly replaced. Replace only
with the same or equivalent type recommended by the equipment
manufacturer. Discard used batteries according to manufacturer's
instructions.
Invisible Body Tag
1
About DAE2 Disk
Enclosures
Topics in this chapter include
◆ Introduction........................................................................................1-2
◆ Link Control Cards (LCCs)...............................................................1-7
◆ Disk Modules......................................................................................1-8
◆ Power Supply/System Cooling Modules ......................................1-9
About DAE2 Disk Enclosures
1-1
About DAE2 Disk Enclosures
Introduction
The DAE2 (2-gigabit disk-array enclosure) is a highly available,
high-performance, high-capacity storage system that uses a Fibre
Channel Arbitrated Loop (FC-AL) as its interconnect interface. An
enclosure connects to another DAE2 or a processor such as a CX600,
CX400 or CX200, and is managed by storage-system software in
RAID (Redundant Array of Independent Disk) configurations. The
enclosure is only 3U (5.25 inches) high, but can include 15 hard disk
drive/carrier modules. Its modular, scalable design allows for
additional disk storage as your needs increase. The examples and
illustrations in this manual show the rackmounted DAE2 in a
standard 40U EMC cabinet.
EMC produces two types of DAE2. The standard version includes
Fibre Channel disk drives and FC-AL link control cards to manage
them. The DAE2-ATA (Advance Technology Attachment) version
uses economical ATA disk drives and FC-to-ATA link control cards to
manage the disks and provide an interface between the FC-AL and
the drives.
1-2
Disk
Drive
(0 - 14)
Front
Bezel
Figure 1-1 DAE2
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Rackmount
Cabinet
EMC2164
About DAE2 Disk Enclosures
Any DAE2 can support up to fifteen 3.5-inch disk modules. Simple
serial cabling provides easy scalability. You can interconnect as many
as eight DAE2s to Fibre Channel loops (sometimes called busses) to
form a large disk storage system. The number of loops depends on
the capabilities of your storage processor; highly available
configurations require at least two loops, other configurations use a
single loop. You can place the disk enclosures in the same cabinet, or
in one or more separate cabinets. High-availability features are
standard.
The DAE2 includes the following components:
◆ A sheet-metal enclosure with a midplane and front bezel
◆ Two link control cards (LCCs)
◆ As many as 15 disk modules
◆ Two power supply/system cooling modules
The power supply and system cooling components of the power/cooling
modules function independently of each other, but the assemblies are
packaged together into a single field-replaceable unit (FRU).
Any unoccupied disk module slot has a filler module to maintain air
flow.
The LCCs, disk modules, power supply/system cooling modules,
and filler modules are field-replaceable units (FRUs), which you can
add or replace without tools while the array is powered up.
Standard DAE2 disk modules are FC-AL compliant and support
dual-port FC-AL interconnects through the two LCCs and their
cabling. ATA disk modules include dual-port ATA interconnects; the
FC-to-ATA link control cards provide the bridge between Fibre
Channel and ATA signals.
You can integrate and connect FC and ATA enclosures within a storage
system, but you cannot mix ATA and fibre components within a DAE2.
Standard link control cards will not recognize ATA disk drives, and ATA link
control cards will not recognize fibre channel disks.
The system can continue running with one operating power supply
and a single functional LCC. At least three of the four system cooling
blowers must be running correctly for continuous operation.
Figures 1-2 through 1-4 show the disk enclosure components. Details
on each component accompany the figures. Where the enclosure
provides slots for two identical components, the components are
Introduction
1-3
About DAE2 Disk Enclosures
(
)
called component-name A or component-name B, as shown in the
illustrations.
For increased clarity, the following figures depict the disk enclosure outside
of the rack cabinet. Your disk enclosure may be installed in a rackmount
cabinet as shown in Figure 1-1.
As shown in Figure 1-2, the front LED display contains two status
lights for each disk module, and two disk enclosure status lights. The
enclosure status lights are visible with the front bezel installed.
Fault LED
(Amber)
Disk Activity
LED
Green
Figure 1-2 DAE2 Front LED Display
Fault LED
(Amber)
Figure 1-3 shows the DAE2 components visible from the rear of the
enclosure. Each highly-available DAE2 includes two link control
cards and two power supply/system cooling (power/cooling)
modules.
Power LED
(Green)
EMC2166
1-4
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Enclosure
(
)
Address
Switch
Power/Cooling
Module B
Link Control
Card B (LCC B)
Power/Cooling
Module A
Link Control
Card A
Figure 1-3 Disk Enclosure Rear View
LCC A
As shown in Figure 1-3 and Figure 1-4, an enclosure address (EA)
switch/indicator is located between the power supplies at the rear of
the disk enclosure. (The EA is sometimes referred to as an enclosure
ID.) Each link control card (LCC) includes a loop (bus) identification
indicator. The storage processor initializes loop ID when the
operating system loads.
About DAE2 Disk Enclosures
EMC2162
_
0
+
0
1
2
3
Figure 1-4 Disk Enclosure Rear Displays
Enclosure
Address
4
5
Loop ID
6
7
EMC2167
Introduction
1-5
About DAE2 Disk Enclosures
The enclosure address is set on the switch at installation. Disk module IDs are
numbered left to right (looking at the front of the unit) and are contiguous
throughout an array: enclosure 0 contains modules 0-14; enclosure 1 contains
modules 15-29; enclosure 2 includes 30-44, and so on through eight
enclosures.
The enclosure EA switch and loop indicator are described in the
installation procedure in Chapter 2. The status lights are described in
the Monitoring Disk Enclosure Status section of Chapter 3.
Midplane
Front Bezel
A midplane between the disk modules and the LCC and
power/cooling modules distributes power and signals to all
components in the enclosure. LCCs, power/cooling modules, and
disk drives — the enclosure’s field-replaceable units (FRUs) — plug
directly into the midplane.
The front bezel, shown in Figure 1-5, has a locking latch and an
electromagnetic interference (EMI) shield. You must remove the bezel
to remove and install drive modules. EMI compliance requires a
properly installed front bezel.
EMC2173
1-6
Figure 1-5 Disk Enclosure Front Bezel
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Link Control Cards (LCCs)
(
)
(
)
An LCC supports and controls one Fibre Channel loop and monitors
the DAE2.
Fault
LED
(Amber)
Power
LED
(Green)
About DAE2 Disk Enclosures
Loop
ID LEDsLatch
Expansion
Connector
Figure 1-6 LCC Connectors and LEDs
Expansion
Link Active
LED
Green
The LCCs in a DAE2 are connected to other Fibre Channel devices
(hosts, DAE2s, and so on) using twin-axial copper cables. The cabling
is not explicitly configured as a loop (with a long return from the last
disk enclosure to the server), but instead, as a set of full-duplex,
point-to-point connections with the last disk enclosure in the chain
closing the loop on its LCC.
The LCC independently receives and electrically terminates the
incoming FC-AL signal. The LCC passes the input signal to the disk
drives in the enclosure; it then sends the output signal, via cables, to
the next DAE2 in the loop. ATA link control cards provide the same
Fibre Channel input and output, but convert those signals to and
from the ATA protocol used by their disk drives.
Each LCC independently monitors the environmental status of the
entire enclosure, using a microcomputer-controlled FRU
(field-replaceable unit) monitor program. The monitor communicates
status to the server, which polls DAE2 status. LCC firmware also
controls the LCC port bypass circuits and the disk-module status
lights.
Primary
Link Active
LED
Green
Primary
Connector
EMC2165
LCCs do not communicate with or control each other.
Each LCC has four status lights. These status lights are described in
Monitoring Disk Enclosure Status in Chapter 3.
Link Control Cards (LCCs)
1-7
About DAE2 Disk Enclosures
Disk Modules
A latch on the LCC locks it into place to ensure proper connection to
the midplane. You can add or replace an LCC while the disk
enclosure is powered up.
Each disk module consists of one disk drive in a carrier. You can add
or remove a disk module while the DAE2 is powered up, but should
exercise special care when removing modules while they are in use.
Drive modules are extremely sensitive electronic components. Refer to the
instructions on Handling FRUs and Replacing or Adding a Disk Module in
Chapter 3 whenever you handle a disk module.
Fibre Channel disk modules will not work in an ATA enclosure, and
vice versa. You can visually distinguish between module types by
their different latch and handle mechanisms. ATA drive modules also
include a small printed-circuit adapter board in the back (connector
side) of the carrier. Figure 1-7 shows the DAE2 disk modules.
Disk Drives
Drive Carrier
1-8
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Fibre Channel Disk Module
Carrier
Latch
Handle
Figure 1-7 Disk Modules
DAE2 disk drives conform to either FC-AL or ATA 6 specifications,
and either 1-Gbit and 2-Gbit Fibre Channel or 1.5-Gbit serial ATA
interface standards. The disk module slots in the enclosure
accommodate 1-inch (2.54 cm) by 3.5-inch (8.75 cm) disk drives.
The disk drive carriers are metal and plastic assemblies that provide
smooth, reliable contact with the enclosure slot guides and midplane
connectors. Each carrier has a handle with a latch and spring clips.
Disk
Drive
EMC1758
ATA Disk Module
Carrier
Adapter
Board
Latch
Disk Drive
Handle
The latch holds the disk module in place to ensure proper connection
3
with the midplane. Disk drive Activity/Fault LEDs are integrated
into the carrier.
Power Supply/System Cooling Modules
The power supply/system cooling (power/cooling) modules are
located above the LCCs. The units integrate independent power
supply and dual-blower cooling assemblies into a single module.
Each power supply is an auto-ranging, power-factor-corrected,
multi-output, off-line converter with its own line cord and on/off
switch. Each supply supports a fully configured DAE2 and shares
load currents with the other supply. The drives and LCC have
individual soft-start switches that protect the disk drives and LCCs if
you install them while the disk enclosure is powered up. A FRU
(disk, LCC, or power/cooling module) with power-related faults will
not adversely affect the operation of any other FRU.
The enclosure cooling system includes two dual-blower modules. If
one blower fails, the others will speed up to compensate. If two
blowers in a system (both in one power/cooling module, or one in
each module) fail, the DAE2 will go off line within two minutes.
About DAE2 Disk Enclosures
Each power/cooling module has three visible status lights. The
rightmost LED indicates power to the supply; the LED adjacent to it
indicates a power supply fault. The leftmost LED indicates a failure
in one of the integrated blowers within that module that cool the disk
enclosure. The status lights are shown in Figure 1-8 and described in
Monitoring Disk Enclosure Status in Chapter 3.
Blower Fault
LED
(Amber)
Figure 1-8 Power Supply/System Cooling Module
Latch
Power Fault
LED (Amber)
A latch on the power/cooling module locks it into place to ensure
proper connection to the midplane. You can add or remove one
Power Supply/System Cooling Modules
Power Switch
ac
Connector
Power
LED
(Green)
EMC216
1-9
About DAE2 Disk Enclosures
power supply/system cooling module in a DAE2 while the system is
powered up.
1-10
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Invisible Body Tag
2
Installing a DAE2
This chapter describes the DAE2 installation requirements and
procedures. Major topics are
◆ Requirements......................................................................................2-2
◆ Installing a Disk Enclosure in a Cabinet.........................................2-3
◆ Setting Up an Installed Disk Enclosure ..........................................2-4
◆ Powerup and Initialization.............................................................2-11
◆ Binding Disk Modules into RAID Groups...................................2-12
Installing a DAE2
2-1
Installing a DAE2
Requirements
This section explains site and cabling requirements.
Site Requirements
Power To determine a DAE2’s worst case power requirements, use the
Cooling The temperature at the front bezel inlet must meet the ambient
For proper operation, the installation site must conform to certain
environmental specifications. These are detailed below and in
Appendix A.
power rating on the enclosure label. This rating is the maximum
power required for a fully loaded enclosure. The amount of internally
regulated power that a maximum configuration requires from the
power supplies and cooling system determines the values for input
current, power (VA), and dissipation per disk enclosure. Typical
values will be less depending on the number, manufacturer, and type
(FC or ATA) of disk drives. These values represent the sum of the
values shared by the line cords of two power supplies in the same
enclosure. Power cords and supplies share the power load evenly. If
one of the two power supplies fails, the remaining supply and cord
support the full load. You must use a rackmount cabinet with ac
power distribution, and have main branch ac distribution that can
handle these values for the number of disk enclosures that you will
interconnect.
temperature specification described in Appendix A. The site must
have air conditioning that can maintain the specified ambient
temperature range. The air conditioning must be able to handle the
BTU requirements of the DAE2 disk enclosures.
Cabling Requirements
2-2
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
The DAE2 supports copper cable for a Fibre Channel connection to
another Fibre Channel device (for example, a storage processor or
another DAE2).
Any copper cables you use must meet the appropriate standards for
2-Gbit FC-AL. Such cables are fully shielded, twin-axial, full-duplex
cables with High Speed Serial Data Connector (HSSDC) connectors.
Distances greater than 1 meter require equalized cables; unequalized
one-meter cables are adequate. The DAE2 does not support cables
shorter than 1 meter or longer than 10 meters.
EMC supports and can provide 1-, 5-, and 10-meter cables. The 5- and
10-meter cables are equalized.
Interconnections between disk enclosures should maintain LCC
consistency; that is, one Fibre Channel (FC) loop should interconnect
all and only the LCC As, and the other Fibre Channel loop should
interconnect all and only LCC Bs.
Do not leave an unused (that is dangling) cable connected to a host or
LCC port because it may cause excess noise on the loop.
Installing a Disk Enclosure in a Cabinet
You will install each disk enclosure on two L-shaped mounting rails
connected to the cabinet’s vertical channels.
◆ The Cabinet Setup Guide for the 40U Cabinet ships with standard
EMC cabinets, and explains how to unpack and install the 40U
cabinet itself.
◆ The EMC Rails and Enclosures Installation Guide for 19-Inch NEMA
Cabinets ships with the mounting rails. It explains how to install
universal mounting rails in the cabinet, and how to install the
enclosure on those rails.
Installing a DAE2
Warnings and Recommendations
The cabinet in which you will install the disk enclosure(s) must have
a full earth ground to provide reliable grounding. Also, the cabinet
should have its own switchable power distribution. We suggest that
you use a cabinet that has dual power distribution units, one on each
side.
WARNING
The enclosure is heavy and should be installed into a rack by two
people. To avoid personal injury and/or damage to the equipment, do
not attempt to lift and install the enclosure into a rack without a
mechanical lift and/or help from another person.
L’armoire étant lourde, sa mise en place sur une rampe nécessite deux
personnes. Afin de ne pas vous blesser et/ou endommager le matériel,
n’essayez pas de soulever et d’installer l’armoire sur une rampe sans
avoir recours à un relevage mécanique et/ou à l’aide d’une autre
personne.
Installing a Disk Enclosure in a Cabinet
2-3
Installing a DAE2
Das Gehäuse ist schwer und sollte nur von zwei Personen in einem
Rack installiert werden. Zur Vermeidung von körperlichen
Verletzungen und/oder der Beschädigung des Gerätes, bitte das
Gehäuse nicht ohne die Hilfe einer zweiten Person anheben und
einbauen.
Il contenitore è pesante e dev'essere installato nel rack da due
persone. Per evitare danni personali e/o all’apparecchiatura, non
tentare di sollevare ed installare in un rack il contenitore senza un
sollevatore meccanico e/o l’aiuto di un’altra persona.
Debido a su considerable peso, la instalación del compartimento en
el bastidor deben realizarla siempre dos personas. Para evitar daños
personales o en el equipo, el compartimento no debe levantarse ni
instalarse en el bastidor sin la ayuda de un elevador mecánico o de
otra persona.
We recommend that you use cabinet anti-tip devices, especially if you
are installing or removing a disk enclosure in the upper half of the
cabinet when the lower half is empty.
Setting Up an Installed Disk Enclosure
Each disk enclosure in a Fibre Channel loop must have a unique
enclosure address (also called an EA, or enclosure ID) that identifies
the enclosure and determines disk module IDs. In many cases, the
factory sets the enclosure address before shipment to coincide with
the rest of the system; you will need to reset the switch if you
installed the enclosure into your rack independently. The enclosure
address ranges from 0 through 7. You set the EA with the enclosure
address switch, which has one push button for incrementing the
address and another for decrementing it. To set the EA, use a tool
such as a pen, paper clip, or small screwdriver.
The enclosure address is set on the EA switch at installation. Disk module IDs
are numbered left to right (facing the unit) and are contiguous throughout an
array: enclosure 0 contains modules 0-14; enclosure 1 contains modules 15-29;
enclosure 2 includes 30-44, and so on through eight enclosures.
2-4
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Installing a DAE2
!
CAUTION
The drives read their FC-AL physical address only at powerup or
when the drive is reset. To avoid losing data, you must set the
enclosure address when power is off; you cannot change the EA
while power is on.
1. Set the enclosure address to the desired value, as shown in
Figure 2-1.
_
Enclosure
0
Address
+
Switch
Figure 2-1 Setting the Enclosure Address (EA)
2. Plug an ac line cord from the cabinet’s power distribution unit
into each power/cooling module, as shown in Figure 2-2.
EMC2310
Make certain you secure the power cord with the strain reliefs at each
connector. The strain reliefs prevent the power cord from pulling out of
the connections.
Setting Up an Installed Disk Enclosure
2-5
Installing a DAE2
Power
Switch
Power
Switch
EMC2169
Figure 2-2 Plugging in the ac Line Cord
Highly available, write-caching configurations require that you
connect the first disk enclosure (EA 0, loop 0) to a Standby Power
Supply (SPS) for enclosure power. If you do connect a DAE2 to an
SPS (if, for example, the DAE2 is the first disk enclosure in a
CX600 configuration), be sure that you maintain power/loop
integrity; always connect power/cooling module A to SPS A, and
module B to SPS B.
2-6
Figure 2-3 shows the power cord connections for a typical
CX600-Series configuration.
Do not configure an ATA model DAE2 as EA 0, loop 0. ATA enclosures do not
support the boot and SPS requirements of the first disk array in a storage
system.
An integrated disk-and-processor enclosure, such as a CX400- or
CX200-Series DPE2, is always the first disk enclosure on the first loop (0,0).
You should not connect the first DAE2 in a DPE2 configuration to an SPS.
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
4
DAE2
SPS
SPS
DAE2
Installing a DAE2
Circuit
Breaker
Power
Supply B
SPS B
Power Switch
B
Figure 2-3 Connecting DAE2 Power Cords
3. Repeat steps 1 and 2 for each disk enclosure in the cabinet, as
necessary.
DAE2
DAE2
Power Switch
A
Power
Switch
DAE2
Power
Supply A
SPS A
EMC231
Setting Up an Installed Disk Enclosure
2-7
Installing a DAE2
4. Attach the copper cable from the external device (storage
processor or another DAE2) to the PRI connector as shown in
Figure 2-4. If you are continuing the loop to another DAE2, attach
a cable from the EXP connector to the PRI connector in the next
DAE2.
PRI
Connector
To other FC device
EMC2171
2-8
Figure 2-4 Connecting a Disk Enclosure to Another FC Device
5. If you are installing multiple disk enclosures, cable them as
shown in Figure 2-5 or Figure 2-6.
The example configuration in Figure 2-5 shows a CLARiiON
CX600 storage processor enclosure (SPE) below four DAE2
disk-array enclosures. The five devices support two completely
redundant loops. Note that the external device connects to the
Primary disk enclosure connectors, and subsequent enclosures
connect in an Expansion-to-Primary chain.
EA 0, loop 0 must be a Fibre Channel DPE2 or DAE2. ATA enclosures do not
support the boot and SPS requirements of the first disk array in a storage
system.
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
®
Installing a DAE2
CC
CC
Loop 1
Loop 0
Loop 0
Loop 0
BL
L
A
EA1/Loop 1
EA1/Loop 0
EA0/Loop 1
EA0/Loop 0
EXP EXPPRI PRI
BE1
BE0
SP B
SPE
SP A
BE0
BE1
Loop 0
Loop 1Loop 1
Loop 0
Loop 1
Loop 0
Figure 2-5 Cabling Disk Enclosures Together — Standard Configuration
All DAE2 configurations follow the same primary-to-expansion
connection principles. For example, Figure 2-6 shows two
segregated loops connecting contiguous disk enclosures.
Setting Up an Installed Disk Enclosure
EMC2311
2-9
Installing a DAE2
Loop 0
Loop 1
SPS B
EA4/Loop 0
EA3/Loop 0
EA2/Loop 0
EA1/Loop 0
EA0/Loop 0
SP B
SP A
EA0/Loop 1
EA1/Loop 1
EA2/Loop 1
LCC ALCC B
Loop 0
SPS A
Loop 1
2-10
EA3/Loop 1
EA4/Loop 1
EXP
Figure 2-6 Cabling Disk Enclosures Together — Segregated Loop Configuration
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
PRI
EMC2351
6. For proper cooling and normal operation, make sure all the disk
module slots in each disk enclosure contain either disk or filler
modules.
Do not power up a disk enclosure without at least one LCC installed.
You can configure a driveless disk enclosure within a Fibre Channel loop.
High availability with write-caching requires disks in slots 0-4 in the first
DPE2 or DAE2 connected to a storage processor (Enclosure Address 0,
loop 0).
7. Turn the DAE2 power switch(es) to the on position. If necessary,
set the SPS switches, and then the main circuit breaker switches,
to the on position. The disk enclosures in the cabinet power up.
Powerup and Initialization
The only power switches on a DAE2 are those on the power
supply/system cooling module, which are normally on. As a result, a
DAE2 is always active.
When you initially apply ac power to a disk enclosure, the disk drive
modules power up according to their specifications, and spin up in a
specified sequence dictated by enclosure and loop IDs. The slot
spin-up delays range from 0 to 84 seconds. The same delays are used
when you insert a drive module while the system is powered up.
Installing a DAE2
The LCC hardware monitor (FRU monitor) resets and begins its
control loop. The port bypass circuits enter the states indicated by
their associated drives. The monitor continues to run in this local
mode until it receives commands that dictate otherwise. In local
mode, the monitor maintains the port bypass circuits in the same
states as the drive command signals. When a drive fault occurs, the
corresponding drive fault light turns on. Firmware commands can
take control of the port bypass circuits and the drive status lights.
!
CAUTION
The drives read their FC-AL physical address only at powerup or
when the drive is reset. To avoid potential data loss, you must set
the enclosure address when you install the disk enclosure and
power is off; you cannot change the EA while power is on.
Powerup and Initialization
2-11
Installing a DAE2
Binding Disk Modules into RAID Groups
After cabling the disk enclosure, use EMC ControlCenter™
Navisphere
®
Manager software to bind the disks into RAID groups.
Refer to the EMC ControlCenter Navisphere Manager Revision 6.X
Administrator’s Guide and your storage processor configuration and
planning guide for detailed information.
2-12
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Invisible Body Tag nvisible
3
Servicing a DAE2
This chapter describes how to monitor disk enclosure status, handle
FRUs, and replace or add a Field Replaceable Unit (FRU). Topics are
◆ Monitoring Disk Enclosure Status...................................................3-2
◆ Handling FRUs...................................................................................3-6
◆ Replacing or Adding a Disk Module ..............................................3-9
◆ Replacing an LCC Module .............................................................3-15
◆ Replacing a Power Supply/System Cooling Module.................3-20
For more information about upgrading your DAE2, contact your service
provider.
Servicing a DAE2
3-1
Servicing a DAE2
(
)
Monitoring Disk Enclosure Status
Status lights on the DAE2 and its FRUs indicate error conditions.
These lights are visible outside the disk enclosure. Some lights are
visible from the front, and the others from the back. Figures 3-1
through 3-4 and Tables 3-1 through 3-3 describe the status lights.
Fault LED
(Amber)
Disk Activity
LED
Green
Figure 3-1 Front Disk Enclosure and Disk Module Status Lights (Bezel Removed)
Fault LED
(Amber)
Power LED
(Green)
EMC2166
Table 3-1 describes the LEDs visible from the front of the DAE2.
3-2
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Servicing a DAE2
Table 3- 1 Status Lights Visible from the Front of the Disk Enclosure
Light Quantity Color Meaning
Disk Enclosure Power 1 Green Power to enclosure is on.
Disk Enclosure Fault 1 Amber On when any fault condition exists; if the fault is not obvious
from a disk module light, look at the back of the disk enclosure.
Disk Active 1 per disk module Green Off when the slot is empty or contains a filler module.
Disk Fault 1 per disk module Amber On when the disk module is faulty, or as an indication to remove
Also off when the disk is powered down by command; for
example, the result of a temperature fault.
(mostly off)
Flashing
spinning; this is a normal part of the spin
occurring during the spin-up delay of a slot.
Flashing
(at a constant rate)
FC drive: when the drive is spinning up or spinning down
normally.
ATA drive: when the module has received power but the disk
has not started spinning
On when the drive has power but is not handling any I/O activity
(the ready state). ATA modules also show the Disk Active LED
on while the disk spins up or down normally.
Flashing
(mostly on
activity.
Flashing (constant fast rate) when an ATA LCC has forced
ownership of the drive.
the drive.
when the FC drive is powered up but not
) when the drive is spinning and handling I/O
-
up sequence,
Figure 3-2 shows the enclosure address and loop ID indicators,
visible from the back of the enclosure.
Monitoring Disk Enclosure Status
3-3
Servicing a DAE2
(
)
_
0
+
Enclosure
Address
0
1
2
3
Figure 3-2 Enclosure Address and Loop ID Indicators
4
5
6
7
Loop ID
EMC2167
Table 3-2 describes the ID indicators.
Table 3- 2 Enclosure and Loop ID Indicators
Light Quantity Color Meaning
Enclosure Address 1 Green Displayed number indicates Enclosure Address
Loop ID 8 Green Displayed number indicates Loop ID
Figure 3-3 shows the status LEDs for the power/cooling modules.
3-4
Blower Fault
Latch
LED
(Amber)
Figure 3-3 Power Supply/System Cooling Module Status Indicators
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Power
Fault
LED
Amber
Power
LED
(Green)
EMC2230
Figure 3-4 shows the status LEDs for the link control cards.
(
)
(
)
Fault
LED
(Amber)
Power
LED
(Green)
Loop
ID LEDs
Servicing a DAE2
Expansion
Link Active
LED
Green
Figure 3-4 LCC Status LEDs
Primary
Link Active
LED
Green
EMC2221
Table 3-3 describes the status LEDs visible from the rear of the disk
enclosure.
Table 3- 3 Status Lights Visible from the Rear of the Disk Enclosure
Light Quantity Color Meaning
LCC Power 1 per LCC Green On when the LCC is powered up.
LCC Fault 1 per LCC Amber On when either the LCC or a Fibre Channel connection is faulty.
Primary Link Active 1 per LCC Green On when Primary connection is active.
Expansion Link Active 1 per LCC Green On when Expansion connection is active.
Power Supply Active 1 per supply Green On when the power supply is operating.
Power Supply Fault 1 per supply Amber On when the power supply is faulty or is not receiving ac line voltage.
Also on during Power On Self Test (POST).
Flashing when either a multiple blower or ambient overtemperature
condition have shut off dc power to the system.
Blower Fault 1 per power supply Amber On when a blower in the power supply is faulty.
If the disk enclosure Fault light is on, examine the other status lights
to determine which FRU(s) is faulty. If a fault light on a FRU remains
on, you should replace that FRU as soon as possible.
Monitoring Disk Enclosure Status
3-5
Servicing a DAE2
Handling FRUs
When a redundant FRU fails, high availability will be compromised until you
replace the faulty FRU.
This section describes the precautions that you must take and the
general procedures you must follow when removing, installing, and
storing FRUs.
Power Issues and FRUs
Avoiding Electrostatic Discharge (ESD) Damage
The DAE2 is designed to always be powered up and hot repairable.
Its front bezel should be attached and each of its compartments
should contain a FRU or filler panel to ensure EMI compliance and
proper air flow over the FRUs.
While the disk enclosure is powered up, you can service or replace
any FRU, although removing an active LCC will affect operating
system access to the disks it controls. You should not remove a faulty
FRU until you have a replacement available.
Since you can replace or add any FRU without sliding the disk
enclosure out of the cabinet, you do not have to use cabinet anti-tip
devices when you upgrade or service a DAE2.
If you need to power down a DAE2, simply turn both the power
switches to Off, or unplug the unit. You do not need to shut down
main ac lines to the disk enclosure unless you need to power down all
the cabinet contents connected to that line.
When you replace or install FRUs, 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. You must follow the procedures below to prevent
damage to the equipment.
3-6
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.
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Servicing a DAE2
◆ Do not remove replacement or upgrade FRUs from their antistatic
packaging until you are ready to install them.
◆ Gather together the ESD kit and all other materials you will need
before you service a disk enclosure. Once servicing begins, you
should avoid moving away from the work site; otherwise, you
may build up an electrostatic charge.
◆ An ESD wristband is supplied with your disk enclosure. To use it,
attach the clip of the ESD wristband (strap) to any bare
(unpainted) metal on the disk enclosure; then put the wristband
around your wrist with the metal button against your skin.
◆ 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 the cabinet or enclosure.
◆ Before removing any FRU from its antistatic bag, place one hand
firmly on a bare metal surface of the enclosure, and at the same
time, pick up the FRU 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 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.
Handling FRUs
3-7
Servicing a DAE2
Precautions When Removing, Installing, or Storing FRUs
Use the precautions listed below when you remove, handle, or store
FRUs:
◆ Do not remove a faulty FRU until you have a replacement
available.
◆ Handle a FRU only when using an ESD wristband. Attach the clip
of the ESD wristband to the ESD bracket or bare metal on the
enclosure, and put the wristband around your wrist with the
metal button against your skin.
◆ Handle FRUs gently. A sudden jar, drop, or vibration can
permanently damage a FRU and may not be immediately
evident. Never place a FRU on a hard surface such as an
unpadded cart, floor, or desktop, or stacked on top of another
FRU.
◆ Never use excessive force to remove or install a FRU.
◆ Store a FRU in the antistatic bag and specially designed shipping
container in which you received it. Use that container if you need
to return the FRU for repair.
◆ Maintain the location where you store FRUs within the limits
specified in Appendix A.
◆ Place the cables where no one can step on them or roll equipment
over them.
3-8
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Replacing or Adding a Disk Module
Servicing a DAE2
!
CAUTION
Disk modules are extremely sensitive electronic components.
Always handle a disk module gently, and observe the following
guidelines:
◆ Always replace a disk drive with another of the same model; do
not mix Fibre Channel and ATA components in the same
enclosure. Refer to Figure 1-7 on page 1-8 for a visual
comparison of FC and ATA disk carriers.
◆ Follow the instructions in the preceding section Avoiding
Electrostatic Discharge (ESD) Damage on page 3-6.
◆ Always wear a properly-attached ESD wristband when
removing or replacing a disk module.
◆ When removing a disk module, pull the module part way out of
the slot, then wait 30 seconds for the drive to spin down before
removing it.
◆ Place modules on a soft, antistatic surface, such as an
industry-standard antistatic foam pad or the container used to
ship the module. Never place a disk module directly on a hard
surface.
◆ Never hit modules, stack modules, or allow them to tip over or
fall.
◆ Avoid touching any exposed electronic components and circuits
on the disk module.
◆ Do not remove a faulty disk module until you have a
replacement module (with the same part number) or a filler
module available. The part number (PN005xxxxxx) appears on
the top or bottom of the module. A replacement or add-on disk
module should have the same format (bytes per sector) and the
same capacity (size and speed) as the other modules in the
enclosure.
You must remove the disk enclosure’s front bezel to gain access to the
disk modules. The bezel is required for EMI compliance when the
enclosure is powered up. Remove it only to replace or add a disk
module.
Replacing or Adding a Disk Module
3-9
Servicing a DAE2
Unlocking and Removing the Front Bezel
Follow these steps to remove the front bezel and gain access to the
disk modules. Refer to Figure 3-5.
1. Insert the key that shipped with your enclosure into the bezel
lock, and turn it to release the lock.
2. Press the two latch buttons on the bezel surface toward each other
to release the bezel from the cabinet.
3. Pull the bezel off the cabinet and put it on a clean, static-free
surface.
3-10
EMC2173
Figure 3-5 Unlocking and Removing the Front Bezel
If you are adding a new disk module, continue to the disk filler
module removal procedure that follows. If you are replacing a faulty
disk module, proceed to the disk module removal procedure.
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Removing a Disk Filler Module
Locate the slot where you want to install the disk module, and
remove the filler module, as shown in Figure 3-6.
Figure 3-6 Removing a Disk Filler Module (FC Disk Carrier Shown)
Servicing a DAE2
EMC2210
Removing a Disk Module
!
Skip to the disk installation procedure (Page 3-12) to install the
add-on disk in the slot you just emptied.
CAUTION
If a disk module has been bound into a LUN, do not move it to
another slot unless you do not care about the data on the LUN. Each
module contains LUN-identifying information written when it was
bound. Moving it to another slot can make information on the
original LUN inaccessible.
Generally, you should not remove a disk module unless its amber
fault light is on. See Table 3-1.
1. Attach an ESD wristband to your wrist and the enclosure (see the
precautions on Page 3-7).
Replacing or Adding a Disk Module
3-11
Servicing a DAE2
2. If the active light is on steadily, pull the latch, and slowly pull the
module about 1 in (3 cm) from its slot. Wait 30 seconds for the
disk to stop spinning. Then remove the module and place it on a
padded, static-free surface.
If the active light is off or mostly off you do not need to wait for
the disk to stop spinning. Pull the latch and slowly pull the
module from its slot, as shown in Figure 3-7. Place it on a padded,
static-free surface.
Figure 3-7 Removing a Disk Module (FC Disk Carrier Shown)
Installing a Disk or Filler Module
3-12
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
EMC2174
Continue to the next section to install the replacement disk module.
Always replace a disk drive with another of the same model; do not mix Fibre
Channel and ATA components in the same enclosure. Refer to Figure 1-7 on
page 1-8 for a visual comparison of FC and ATA disk carriers.
1. Make sure an ESD wristband is attached to your wrist and the
enclosure (see the precautions on Page 3-7).
2. Align the module with the guides in the slot.
3. Gently push the module completely into the slot, and then engage
the latch. See Figure 3-8.
EMC2211
Figure 3-8 Installing a Disk or Filler Module (FC Disk Carrier Shown)
The disk module’s Active light flashes to reflect the disk’s spin-up
sequence.
4. Remove and store the ESD wristband and continue to the next
section to install the front bezel.
Servicing a DAE2
Replacing or Adding a Disk Module
3-13
Servicing a DAE2
Installing and Locking the Front Bezel
Refer to Figure 3-9 as you do the following:
1. Align the bezel with the disk enclosure.
2. Gently push the bezel into place on the cabinet until it latches.
3. Secure the bezel by turning the key in the lock.
EMC2222
3-14
Figure 3-9 Installing and Locking the Front Bezel
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Replacing an LCC Module
Servicing a DAE2
Removing an LCC
!
CAUTION
Handle an LCC gently and use an ESD wristband. Do not remove a
faulty LCC until you have a replacement module available.
A DAE2 must have at least one LCC installed while it is powered up. Do not
remove both LCCs while the disk enclosure is powered up.
Always replace an LCC with another of the same model; do not mix fibre
channel and ATA components in the same enclosure. (An "ATA Ctlr" label on
the module bulkhead identifies the ATA LCC.)
1. Gently press the connector latches to release them as you remove
the copper cables connected to the LCC, as shown in Figure 3-10.
Note where the cable(s) connect to the LCC; you will need to reconnect
them to the replacement LCC.
PRI
Connector
To other FC device
Figure 3-10 Removing a Copper Cable from an LCC
EMC2215
Replacing an LCC Module
3-15
Servicing a DAE2
2. Turn the latch counterclockwise to release the module, and then
remove the LCC from its slot, as shown in Figure 3-11.
Figure 3-11 Removing an LCC
Installing an LCC
Latch
EMC2212
Continue to the next section to install the replacement LCC.
1. Gently insert the LCC as shown in Figure 3-12. Be sure the module
is completely seated in the DAE2 midplane.
3-16
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Servicing a DAE2
Latch
Figure 3-12 Installing an LCC
The LCC Power light turns on.
2. Turn the latch clockwise to secure the module.
The DAE2 LCC latch holds the module in an established position. It does
not pull or otherwise help to seat the LCC.
3. Reattach the copper cables to the same connector from which you
removed them, as shown in Figure 3-13.
EMC2223
Replacing an LCC Module
3-17
Servicing a DAE2
PRI
Connector
To other FC device
EMC2171
Figure 3-13 Reconnecting a Copper Cable to an LCC
4. Remove and store the ESD wristband.
The example configuration in Figure 3-14 shows a generic CLARiiON®
storage processor enclosure (SPE) below four DAE2 disk-array enclosures.
Note that the external device connects to the Primary disk enclosure
connectors, and subsequent enclosures connect in an Expansion-to-Primary
chain.
3-18
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Servicing a DAE2
CC
CC
Loop 1
Loop 0
Loop 0
Loop 0
BL
L
A
EA1/Loop 1
EA1/Loop 0
EA0/Loop 1
EA0/Loop 0
EXP EXPPRI PRI
BE1
BE0
SP B
SPE
SP A
BE0
BE1
Loop 0
Loop 1Loop 1
Loop 0
Loop 1
Loop 0
Figure 3-14 Connecting Disk Enclosures Together with Copper Cable
Replacing an LCC Module
EMC2311
3-19
Servicing a DAE2
Replacing a Power Supply/System Cooling Module
!
CAUTION
Handle a power supply/system cooling module gently and use an
ESD wristband. Do not remove a power/cooling module until you
have a replacement module available.
If one power supply is off and the other is on, do not turn one on
and immediately turn off the other. Instead, turn one on and wait
five seconds after the green LED lights before turning the other off.
Turn off the power supply before unplugging the power cord from
the supply.
Access to the disks in your enclosure will time out and the disks will
power down two minutes after a power supply/system cooling
module is removed from the system. While the system can continue
operating on a single power supply, the loss of a module’s two
blowers will cause a time-out unless you replace the module within
two minutes.
Follow these steps to replace a power supply/system cooling
module.
1. Turn off the power supply and unplug its ac line cord as shown
Figure 3-15.
3-20
Power
Switch
EMC2214
Figure 3-15 Turning Off a Supply’s Power and Unplugging Its ac Power Cord
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Servicing a DAE2
2. Turn the latch counterclockwise to release the module, and then
remove the power/cooling module as shown in Figure 3-16.
To protect a running system from overheating, the enclosure will time
out unless you replace the power/cooling module within two minutes.
Latch
EMC2175
Figure 3-16 Removing a Power Supply/System Cooling Module
3. Gently insert the new power/cooling module into the enclosure,
as shown in Figure 3-17. Be sure the module is completely seated.
Latch
Figure 3-17 Installing a Power Supply/System Cooling Module
Replacing a Power Supply/System Cooling Module
EMC2224
3-21
Servicing a DAE2
4. Turn the latch clockwise to secure the module.
The latch holds the power/cooling module in an established position. It
does not pull or otherwise help to seat the module.
5. Plug the ac power cord into the new supply, and turn on the
power supply as shown in Figure 3-18.
Power
Switch
3-22
EMC2225
Figure 3-18 Plugging in the Power Cord and Turning on Power
Make certain you secure the power cord with the strain reliefs at each
connector. The strain reliefs prevent the power cord from pulling out of
the connections.
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Invisible Body Tag
A
Technical
Specifications
Body Tag
This appendix describes the disk enclosure technical specifications,
operating limits, and shipping and storage requirements. Major
topics are
◆ Enclosure Specifications...................................................................A-2
◆ Operating Limits ...............................................................................A-5
Technical Specifications
A-1
Technical Specifications
Enclosure Specifications
Technical enclosure specifications include power requirements, size,
drive, interface, and standards information.
Ac Power Requirements
Requirement DAE2 (Fibre Channel) DAE2-ATA
ac line voltage 100 to 240 Vac + 10%, single phase, 47 to 63 Hz
ac line current 4.0 A at 100 Vac, 1.6 A at 200 Vac 3.0 A at 100 Vac, 1.4 A at 200 Vac
Power consumption 400 VA(392 W) max (fully configured)* 300 VA (294) W) max (fully configured)*
Power factor 0.98 min at full load, low voltage
Heat dissipation 1.41 106 J/hr (1,330 BTU/hr) max * 1.06 106 J/hr (1,017 BTU/hr) max *
In-rush current 25 A max for 1/2 line cycle, per power supply at 240 Vac
Startup surge current 15 Apk (10.6 Arms) max for 100 ms, at any line voltage
ac protection 10 A fuse in each power supply, both phases
ac receptacle type IEC320-C14 appliance coupler, per power supply
Ride-through time 30 ms min
Current sharing 60% max, 40% min, between power supplies
The input current, power (VA), and dissipation per DAE2 are based
on the requirements that a maximum DAE2 configuration places on
the power supplies and cooling system to provide internal regulated
power. Typical values will be less, depending on the number and
manufacturer of disk modules. These values represent either
◆ the values for a single power supply line cord, or
◆ the sum of values shared by the line cords of two power supplies
in the same DAE2, with the division between the line cords and
supplies at the current sharing ratio (approximately 50% each).
A failure of one of the two power supplies in the DAE2 results in the
remaining supply and cord supporting the full load. You must use a
rackmount cabinet with ac power distribution, and have main branch
ac distribution that can handle these values for each disk enclosure in
the cabinet.
Description
15 A max for 1/2 line cycle, per power supply at 120 Vac
A-2
*A fully configured DAE2 includes two power supplies, two LCCs, and 15 disk drives.
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Size and Weight
Technical Specifications
Requirement Measurement
Drive Type
LCC FC-AL Interface
Height 133.35 mm (5.25 in)
3 NEMA units including mounting hardware
Width 450 mm (17.72 in)
Depth 603.25 mm (23.75 in)
Weight 43.2 kg (95.3 lbs) maximum configuration
1.1 kg (2.4 lbs) per FC disk module;
1.125 kg (2.5 lbs) per ATA module
1.4 kg (3 lbs) per link control card
4.1 kg (9 lbs) per power supply
12.7 kg (28 lbs) chassis and midplane
The DAE2 uses 3.5-inch (8.75 cm) by 1.0-inch (2.54 cm) disk drives.
Standard, Fibre Channel versions are 12-volt, and support the Fibre
Channel interface. ATA versions are 12- and 5-volt and support the
ATA-6 interface.
Each drive slot provides an average maximum of 16 W drive module
power.
Refer to the EMC Storage Systems CX-Series Disk and Software Support
Matrix for a list of supported drives.
Connectors are shielded HSSDC (High Speed Serial Data Connector).
Copper Cabling
Type: Shielded, 150 Ω differential, shield bonded to HSSDC plug connector
shell (360
FC-PI Standard, Revision 13 or higher
Length: 1 meter (3.3 feet) unequalized;
5 meter (16.5 feet) and 10 meter (33 feet) equalized
°
)
Enclosure Specifications
A-3
Technical Specifications
Standards Certification and Compliance
Rackmount disk enclosures are tested and certified for compliance
with the international environmental and safety specifications listed
below and marked to indicate such compliance and certification as
required.
Standard Description
CSA 22.2 No. 950
EN 60950
UL 1950
CE Mark European EMC Directive & Low Voltage Directive Requirements
EMI Standards
Standard Description
FCC Part 15 Class A, Radio Frequency Device Requirements
Safety of Information Technology Equipment including Electrical
Business Equipment
ICES-003 Class A, Interference-Causing Equipments Standard - Digital
CE Mark European EMC Directive & Low Voltage Directive Requirements.
VCCI Class A, Voluntary Control Council for Interference
AS/NZS 3548 Class A, Electromagnetic Interference - Limits & Methods of
CNS13438 BSMI EMC Requirements
Fibre Channel Related Standards
Standard Description
Fibre Channel Physical and signaling interface, FC-PI, draft Rev. 13
Fibre Channel Arbitrated Loop (FC-AL), Revision 4.5
Fibre Channel Private Loop Direct Attach (PLDA), Revision 2.1
In some cases, the DAE2 uses functions from later revisions of specifications.
Apparatus
Measurement of ITE
A-4
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Operating Limits
Technical Specifications
The ambient temperature specification is measured at the front bezel
inlet. The site must have air conditioning of the correct size and
placement to maintain the specified ambient temperature range. The
air conditioning must be able to handle the BTU requirements of the
disk enclosures.
Requirement Description
o
Ambient temperature 10
Temperature gradient 10oC/hr (18oF/hr)
Relative humidity 20% to 80% noncondensing
Elevation 2438 m (8,000 ft) at 40
The operating limits for temperature and humidity must not be exceeded
inside the closed cabinet in which the
equipment in a cabinet directly above or below a
flow to the disk enclosure, because air flows through the enclosure from front
to back. Cabinet doors must not impede the front-to-back air flow.
C to 40oC (50oF to 104oF)
o
C, 3077 m (10,000 ft) at 37oC
DAE2s are mounted. Mounting
DAE2 does not restrict air
Shipping and Storage Requirements
Requirement Description
Ambient temperature -40oC to 65oC (-40oF to 149oF)
Temperature gradient 25
Relative humidity 10% to 90% noncondensing
Elevation 7625 m (25,000 ft)
o
C/hr (45oF/hr)
Operating Limits
A-5
Technical Specifications
A-6
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Index
A
ac power cord
attaching to power supply 3-22
removing from power supply 3-20
ac power, current draw A-2
Active light
LCC 3-5
power supply 3-5
adding
disk module 3-9
LCC 3-15
power supply 3-20
B
battery, disposing of safely xiv
binding RAID groups 2-12
C
cabinet, installing DAE2 in 2-3
cables
attaching DAE2 to DAE2 with 3-19
reattaching to LCC 3-18
removing from LCC 3-15
requirements 2-2
cabling
precautions 3-8
requirements 2-2
chassis see enclosure
check light
DAE2 components 3-2
LCC 3-5
power supply 3-5
comments xii
components 1-3
Cooling Check light 3-5
current draw, DAE2 A-2
customer support xii
D
DAE2 (2-Gigabit Disk-Array Enclosure)
disk module
description 1-8
disk drive 1-8
drive carrier 1-8
EA indicator 3-4
front bezel description 1-6
LCC status lights 1-7
operating limits A-5
power supply 1-9
powering down 3-6, 3-20
powering up 3-22
rear 1-5
requirements, operating A-5
technical specifications A-2
disk drive
description 1-8
specifications A-3
disk module
adding 3-9
binding into RAID groups 2-12
description 1-8
disk drive 1-8
drive carrier 1-8
drive specifications A-3
replacing 3-9
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
i-1
Index
Documentation, related x
drive carrier description 1-8
E
EA (enclosure address)
indicator 3-4
requirements 2-4
setting 2-5
EA indicator 3-4
electromagnetic interference (EMI)
shield 1-6
standards certification/compliance A-4
electrostatic discharge (ESD), avoiding 3-6
enclosure
description 1-3
EA indicator 3-4
midplane description 1-6
rear, description 1-5
Enclosure Address (EA)
requirements 2-4
setting 2-5
Enclosure ID see Enclosure Address
F
FC-AL (Fibre Channel Arbitrated Loop)
cabling A-3
requirements 2-2
connector A-3
interface specifications A-3
physical address 2-4
Fibre Channel
related standards A-4
front bezel
description 1-6
unlocking and removing 3-10
FRUs (field-replaceable units)
defined 1-3
disk module
adding 3-9
description 1-8
removing 3-11
replacing 3-9
handling 3-6
LCC
adding 3-15
description 1-7
replacing 3-15
power issues 3-6
power supply
adding 3-20
description 1-9
replacing 3-20
storing 3-6
H
help xii
I
indicators, ID 3-4
installation requirements 2-2
installing
DAE2 in cabinet 2-3
disk filler modules 3-12
L
LCC (link control card)
adding 3-15
cabling A-3
DAE2 to DAE2 3-19
requirements 2-2
description 1-7
FC-AL connector A-3
reattaching cables to 3-18
removing copper cables 3-15
replacing 3-15
status light, Active 3-5
status lights 1-7
lights, DAE2 status 3-2
lithium backup battery, disposing of safely xiv
M
midplane 1-6
monitoring 3-2
i-2
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Index
P
power
issues and FRUs 3-6
overview 2-2
power supply
adding 3-20
attaching ac power cord 3-22
description 1-9
removing, ac power cord 3-20
replacing 3-20
status lights
Active 3-5
Check 3-5
Cooling Check 3-5
turning off 3-20
turning on 3-22
powering down DAE2 3-6, 3-20
powering up DAE2 3-22
power-up and initialization sequence 2-11
R
RAID groups 2-12
rear, description 1-5
removing
disk module 3-11
replacing
disk module 3-9
LCC 3-15
power supply 3-20
requirements, cabling 2-2
S
service xii
shipping requirements A-5
site requirements 2-2
specifications, DAE2 A-2
status, monitoring DAE2 3-2
status lights, DAE2 3-2
T
technical specifications, DAE2 A-2
technical support xii
turning off power supply 3-6, 3-20
turning on power supply 3-22
V
voltage, DAE2 requirements A-2
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
i-3
Index
i-4
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
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