EMC ATA, FC User Manual
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.
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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
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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
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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
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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
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