EMC FC4500, FC4400 Hardware Reference Manual
EMC Enterprise Storage
EMC Disk-Array Processor Enclosure (DPE)
Deskside Model FC4400/4500
HARDWARE REFERENCE
P/N 014002902-02
EMC Corporation 171 South Street, Hopkinton, MA 01748-9103
Corporate Headquarters: (508) 435-1000, (800) 424-EMC2 Fax: (508) 435-5374 Service: (800) SVC-4EMC
Copyright © EMC Corporation 2000. All rights reserved.
Printed December 2000
No part of this publication may be reproduced or distributed in any form or by any means, or stored in a
database or retrieval system, without the prior written consent of EMC Corporation.
The information contained in this document is subject to change without notice. EMC Corporation assumes
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furnished under a license, and may be used or copied only in accordance with the terms of such license.
EMC either owns or has the right to license the computer software programs described in this document.
EMC Corporation retains all rights, title and interest in the computer software programs.
EMC Corporation makes no warranties, expressed or implied, by operation of law or otherwise, relating to
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Trademark Information
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All other trademarks used herein are the property of their respective owners.
ii
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
Contents
Preface..............................................................................................................................xi
Chapter 1 About the Deskside Disk-Array Processor Enclosure
Overview............................................................................................1-2
Deskside DPE Components.............................................................1-3
Front Doors.................................................................................1-4
Enclosures ..........................................................................................1-5
Disk Modules .............................................................................1-8
Disk Drives .................................................................................1-8
Link Control Cards (LCCs).......................................................1-9
Storage Processors (SPs) .........................................................1-11
Power Supplies................................................................................1-13
Drive Fan Pack ................................................................................1-15
SP Fan Pack...............................................................................1-16
Standby Power Supply (SPS).................................................1-17
Power Distribution Units (PDUs)..........................................1-18
Redundancy in Configurations.....................................................1-19
EMI Compliance .............................................................................1-24
What Next? ......................................................................................1-25
Chapter 2 Installing a Deskside DPE
Requirements.....................................................................................2-2
Site Requirements......................................................................2-2
Addressing Requirements........................................................2-3
Installing a Deskside DPE................................................................2-4
Deskside DPE Powerup and Initialization Sequence................2-15
DPE Powerdown.............................................................................2-16
Turning Off Power Correctly .................................................2-16
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
iii
Contents
Turning On Power...................................................................2-17
Binding Disk Modules Into RAID Groups..................................2-18
Chapter 3 Servicing and Upgrading a Deskside DPE
Monitoring System Status ...............................................................3-2
Handling CRUs.................................................................................3-7
Power Issues and CRUs............................................................3-7
Avoiding Electrostatic Discharge (ESD) Damage .................3-7
Emergency Procedures (Without an ESD Kit).......................3-8
Precautions When Removing, Installing, or Storing CRUs.3-9
Precautions When Handling Optical Cables ..............................3-10
Replacing or Adding a Disk Module...........................................3-11
Removing a Disk or Disk Filler Module ..............................3-12
Installing a Disk Module........................................................3-14
Replacing the SP Fan Pack ............................................................3-16
Removing the SP Fan Pack.....................................................3-16
Installing the SP Fan Pack......................................................3-17
Replacing an Optical GBIC............................................................3-19
Removing an Optical GBIC Connector ................................3-19
Installing an Optical GBIC Connector..................................3-22
Replacing a Copper GBIC..............................................................3-24
Installing a Copper GBIC Connector....................................3-25
Removing an SP or an SP Filler Module .....................................3-28
Installing or Replacing an SP Memory Module.........................3-30
Removing an SP Memory Module........................................3-30
Installing an SP or SP Filler Module ............................................3-33
Replacing or Adding an LCC Module.........................................3-36
Removing Copper Cable(s) from an LCC............................3-37
Installing an LCC.....................................................................3-39
Replacing the Drive Fan Pack.......................................................3-42
Removing a Drive Fan Pack...................................................3-43
Installing the Drive Fan Pack.................................................3-44
Replacing or Adding a Power Supply Module..........................3-45
Removing a Power-Supply Filler Module ...........................3-45
Removing a Power Supply.....................................................3-46
Installing a Power Supply......................................................3-50
Appendix A Specifications and Operational Requirements
Technical Specifications .................................................................A-2
AC Power Requirements.........................................................A-2
Requirements for the DPE Enclosure....................................A-2
For the DAE Enclosure ............................................................A-3
iv
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
Contents
Size and Weight........................................................................A-3
Service Clearance .....................................................................A-4
Drive Type................................................................................. A-4
LCC FC-AL interface .............................................................. A-4
SP Optical Cabling................................................................... A-4
LCC Copper Cabling...............................................................A-5
Standards Certification and Compliance ....................................A-6
Safety Standards.......................................................................A-6
EMI Standards..........................................................................A-6
Fibre Channel Related Standards.......................................... A-6
Operating Limits ............................................................................A-7
Shipping and Storage Requirements ...........................................A-8
Glossary.........................................................................................................................g-1
Index ................................................................................................................................i-1
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
v
Contents
vi
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
Figures
1-1 Deskside Disk-Array Processor Enclosure (DPE) .................................... 1-2
1-2 Front View Showing Doors and Disk Module IDs .................................. 1-4
1-3 DPE Front Panel ............................................................................................ 1-6
1-4 DAE Front Panel ........................................................................................... 1-7
1-5 Disk Module .................................................................................................. 1-8
1-6 Types of LCC ................................................................................................. 1-9
1-7 LCC Ports and Indicators .......................................................................... 1-10
1-8 SP Back Panel .............................................................................................. 1-11
1-9 Installing an SP ........................................................................................... 1-12
1-10 Power Supply Controls and Indicators ................................................... 1-13
1-11 Drive Fan Pack ............................................................................................ 1-15
1-12 SP Fan Pack ................................................................................................. 1-17
1-13 SPS ................................................................................................................ 1-17
1-14 PDU .............................................................................................................. 1-18
1-15 Disk Modules in a Deskside DPE ............................................................. 1-19
1-16 Back View Showing Components ............................................................ 1-20
1-17 High Availability Configuration, No Write Caching, Back View
with Cables and Drive Fan Packs Removed ............................................ 1-21
1-18 High Availability Configuration, Minimum Write Caching, Back View
with Cables and Drive Fan Packs Removed ............................................ 1-22
1-19 High Availability Configuration, Write Caching High Availability,
Back View with Cables and Drive Fan Packs Removed ........................ 1-23
1-20 Compliance Label Locations ..................................................................... 1-24
2-1 Locking and Unlocking the Front Wheels ................................................ 2-4
2-2 Turning Power Off ....................................................................................... 2-5
2-3 Unlocking and Opening the Front Door ................................................... 2-5
2-4 Setting the Enclosure Address (EA) .......................................................... 2-6
2-5 Closing and Locking the Front Door ......................................................... 2-7
2-6 Storage Processor FC-AL ID Switches ....................................................... 2-8
2-7 Connecting the Power Cord ........................................................................ 2-9
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
vii
Figures
2-8 Attaching Optical Cables to a DPE ........................................................... 2-10
2-9 Attaching Copper Cables to a DPE .......................................................... 2-11
2-10 Cabling a DPE to a DAE ............................................................................. 2-12
2-11 Daisy-Chaining a 10-slot Deskside DAE from a Deskside DPE
with Copper Cable ...................................................................................... 2-13
2-12 Turning Power On ...................................................................................... 2-14
2-13 Powering Down .......................................................................................... 2-16
3-1 DPE Front Panel ............................................................................................ 3-2
3-2 DAE Front Panel ........................................................................................... 3-5
3-3 Unlocking and Opening the Front Door .................................................. 3-12
3-4 Removing a Disk Filler Module ................................................................ 3-13
3-5 Removing a Disk Module .......................................................................... 3-13
3-6 Installing a Disk Module ............................................................................ 3-14
3-7 Closing and Locking the Front Door ........................................................ 3-15
3-8 Removing the SP Fan Pack Cover ............................................................ 3-16
3-9 Removing an SP Fan Pack ......................................................................... 3-17
3-10 Installing the Replacement SP Fan Pack .................................................. 3-17
3-11 Installing the SP Fan Pack Cover .............................................................. 3-18
3-12 Removing an Optical Cable from an SP .................................................. 3-20
3-13 Removing an Optical GBIC Connector from an SP ............................... 3-21
3-14 Installing an Optical GBIC Connector on an SP ..................................... 3-22
3-15 Installing an Optical Cable on the SP Optical GBIC Connector ........... 3-23
3-16 Removing a Copper Cable from an SP .................................................... 3-24
3-17 Removing a Copper GBIC Connector from an SP ................................. 3-25
3-18 Installing a Copper GBIC Connector on an SP ....................................... 3-26
3-19 Installing a Copper Cable on the SP Copper GBIC Connector ............ 3-27
3-20 Removing an SP or Filler Module ............................................................. 3-29
3-21 Removing the Memory Module from the SP .......................................... 3-31
3-22 Installing the Memory Module on the SP ................................................ 3-32
3-23 Setting the SP Address ID .......................................................................... 3-34
3-24 Installing an SP or SP Filler Module ......................................................... 3-35
3-25 Removing an LCC Filler Module .............................................................. 3-36
3-26 Removing Copper Cables .......................................................................... 3-37
3-27 Removing the LCC ...................................................................................... 3-38
3-28 Installing an LCC ........................................................................................ 3-39
3-29 Connecting or Reconnecting Copper Cable(s) to an LCC ..................... 3-40
3-30 Connecting a 10-Slot Deskside DAE to a Deskside DPE with
Copper Cable ............................................................................................... 3-41
3-31 Removing a Drive Fan Pack ...................................................................... 3-43
3-32 Installing a Drive Fan Pack ........................................................................ 3-44
3-33 Removing a Power-Supply Filler Module ............................................... 3-46
3-34 Turning Off the Power Supply .................................................................. 3-47
viii
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
3-35 For Power Supplies Installed with the Power Switch
at the Bottom ................................................................................................ 3-48
3-36 For Power Supplies Installed with the Power Switch
at the Top ...................................................................................................... 3-49
3-37 For Power Supplies Installed with the Power Switch
at the Bottom ............................................................................................... 3-50
3-38 For Power Supplies Installed with the Power Switch
at the Top....................................................................................................... 3-51
3-39 Turning on the Power Supply .................................................................. 3-52
Figures
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
ix
Figures
x
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
Tables
3-1 Status Lights Visible on the DPE Front Panel .......................................... 3-3
3-2 Status Light Visible on the SP Fan Module .............................................. 3-3
3-3 Status Lights Visible from the Back of the Deskside DPE ...................... 3-3
3-4 Status Lights Visible on the DAE Front Panel .......................................... 3-6
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
xi
Tab les
xii
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
Preface
This manual explains how to install the EMC FC4400/4500 deskside
Disk-Array Processor Enclosure (DPE) and how to replace and add
customer-replaceable units (CRUs).
The document is written for service personnel. If you will install and
service the deskside DPE, you should read this manual. After reading
it, you will be able to install a deskside DPE, replace any CRUs that
may fail, and upgrade a deskside DPE by adding disk modules and
redundant CRUs.
How This Manual is
Organized
Related
Documentation
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
Chapter 1 Introduces the deskside DPE’s components.
Chapter 2 Explains requirements and describes how to
install the deskside DPE and cable it to the
server and to other deskside Disk Array
Enclosures (DAEs).
Chapter 3 Describes how to replace CRUs such as disk
modules.
Appendix A Lists the deskside DPE’s technical
specifications.
Glossary Defines terms used in the Fibre Channel
environment.
• EMC Fibre Channel Disk Array Enclosure (DAE) Deskside
Model Hardware Reference, P/N 014002631
• EMC Fibre Channel DC Standby Power Supply (SPS)
Installation Guide, P/N 014002887
xiii
Preface
Conventions Used in
this Manual
!
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 damage to the
system or equipment. The caution may apply to hardware or
software.
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 warning.
EMC uses the following type style conventions in this guide:
Boldface • Specific filenames or complete paths.
• Dialog box names and menu items in text.
• Selections you can make from the user
interface, including buttons, icons, options,
and field names.
• Emphasis in cautions and warnings.
Italic • New terms or unique word usage in text.
• Command line arguments when used in text.
Fixed space Examples of specific command entries that you
would type, displayed text, or program listings.
For example:
xiv
QUERY [CUU=cuu|VOLSER=volser]
Fixed italic Arguments used in examples of command line
syntax.
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
Where to Get Help Obtain technical support by calling your local sales office.
If you are located outside the USA, call the nearest EMC office for
technical assistance. These offices are listed at the back of this
manual.
For service, call the appropriate number, and ask for Customer
Service.
United States: (800) 782-4362 (SVC-4EMC)
Canada: (800) 543-4782 (543-4SVC)
Worldwide: (508) 497-7901
Your Comments Your suggestions will help us continue to improve the accuracy,
organization, and overall quality of the user publications. Please
e-mail us at techpub_comments@emc.com to let us know your
opinion or any errors concerning this manual.
Preface
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
xv
Preface
xvi
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
1
About the Deskside
Disk-Array Processor
Enclosure
This chapter discusses the EMC FC4400/4500 deskside Disk-Array
Processor Enclosure (DPE). Major topics include:
• Overview.............................................................................................1-2
• Deskside DPE Components..............................................................1-3
• Enclosures ...........................................................................................1-5
• Power Supplies.................................................................................1-13
• Drive Fan Pack..................................................................................1-15
• Redundancy in Configurations......................................................1-19
• EMI Compliance...............................................................................1-24
About the Deskside Disk-Array Processor Enclosure
1-1
About the Deskside Disk-Array Processor Enclosure
1
Overview
The EMC FC4400/4500 deskside Disk-Array Processor Enclosure
(DPE) consists of one DPE and one Disk-Array Enclosure (DAE). The
deskside DPE is a highly available, high-performance, high-capacity
disk-array storage system that uses a Fibre Channel arbitrated loop
(FC-AL) or fabric as its interconnect interface. Its modular design
makes expansion easy when storage needs increase.
1-2
Figure 1-1 Deskside Disk-Array Processor Enclosure (DPE)
A deskside DPE can support as many as twenty 3.5-inch, Fibre
Channel disk modules. It connects to the external Fibre Channel
environment using GigaBit Interface Converters (GBICs) on the
storage processor.
High-availability features are standard.The EMC Access Logix™
option provides Storage Group functionality for the Model FC4500
DPE.
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
Deskside DPE Components
The components of a deskside DPE include:
• Front doors (two)
• Enclosures (DPE and DAE)
• Disk modules
• Link control cards (LCCs)
• Storage processors (SPs)
• Power supplies
• Fan packs (drive and SP)
• Standby Power Supply (SPS)
• Power Distribution Units (PDUs)
Any unoccupied slot (SP, LCC, disk module, or power supply) has a
filler module to maintain air flow and compliance with
electromagnetic interference (EMI) standards.
About the Deskside Disk-Array Processor Enclosure
1
The disk modules, link control cards, power supplies, storage
processors, SPSs, and fan packs are customer-replaceable units (CRUs),
which you can add or replace without any tools while the deskside
DPE is powered up.
The high availability features for a deskside DPE include:
• Second SP, power supply, and LCC (in the DPE enclosure)
• Second LCC and power supply (in the DAE enclosure)
• SPS (See “Related Documentation” on page xiii.)
A second SP (with required second LCC in the DPE enclosure)
provides continued access to the DPE and any connected DAEs if the
first SP or LCC fails. The second SP can improve performance and
connect easily to a second server.
The FC-AL compliant disk drives support dual-port Fibre Channel
connections through the link control cards and the associated cabling.
Simple serial cabling provides easy scalability, allowing you to
configure a single disk-array system using a deskside DPE and
add-on DAEs.
Deskside DPE Components
1-3
About the Deskside Disk-Array Processor Enclosure
1
Front Doors
Each front door has a locking latch and an electromagnetic
interference (EMI) shield. The latch is a push button with a removable
locking key that you can use in any deskside DPE or deskside DAE.
When the door is open, you can remove and install drive modules,
and change the DAE enclosure address (EA) using the EA switch.
The front door must be closed for the deskside DPE to be EMI compliant.
Open the door only to access the disk modules or the EA switch for service.
10
0
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
DAE door latch
1-4
DAE door
DPE door latch
Disk module ID
Figure 1-2 Front View Showing Doors and Disk Module IDs
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
DPE door
Enclosures
About the Deskside Disk-Array Processor Enclosure
1
The deskside DPE includes two enclosures, a DPE and a DAE. The
DPE enclosure consists of a sheet-metal housing with a front panel, a
midplane, and slots for up to ten disk modules, link control cards,
power supplies, storage processors, a storage processor fan pack, and
a drive fan pack. The DAE enclosure consists of a sheet-metal
housing with a front panel, a midplane, and slots for up to ten disk
modules, link control cards, power supplies and a drive fan pack. The
enclosures are surrounded by plastic covers.
Enclosures
1-5
About the Deskside Disk-Array Processor Enclosure
1
Enclosure address lights
Enclosure address switch
(not visible with front door
closed)
Disk Check
Disk module status lights
(two per module)
1-6
Disk Active
System Check
DAE status lights
Power
Figure 1-3 DPE Front Panel
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
About the Deskside Disk-Array Processor Enclosure
The DPE front panel contains DPE status lights, disk module status
lights, and an enclosure address (EA) light. The status lights are all
visible when the front door is closed. The DPE and disk module
status lights are described in the “Monitoring System Status” section
of Chapter 3.
0
1
1
2
3
4
Enclosure address light
Disk Check
5
6
7
8
9
Disk module status lights (two
per module)
Disk Active
System Check
Figure 1-4 DAE Front Panel
DPE status lights
Power
Enclosures
1-7
About the Deskside Disk-Array Processor Enclosure
1
The DAE front panel contains DAE status lights, disk module status
lights, enclosure address (EA) lights, and an EA switch. The status
lights are all visible when the front door is closed.
The DAE and disk module status lights are described in the
“Monitoring System Status” section of Chapter 3.
Midplane The midplane distributes power and signals to all components in an
enclosure. All CRUs except the fan packs plug directly into the
midplane connectors.
Disk Modules
Disk Drives
Each disk module (see figure below) consists of one Fibre Channel
disk drive in a carrier. You can add or remove a disk module while
the deskside DPE is powered up.
Shock
mounts
(4)
Disk drive
Figure 1-5 Disk Module
The disk drives are 3.5-inch Fibre Channel drives and conform to the
following standards:
Carrier
Latch
Handle
1-8
• SFF-8067
• FC-AL
• FC-AL Private Loop Direct Attach (PLDA) profile
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
About the Deskside Disk-Array Processor Enclosure
The disk module slots in the enclosure accommodate drives with
heights of either 2.54 cm (1.0 inch) or 4.06 cm (1.6 inches). You can
combine drives of either height, and from different manufacturers,
within the same deskside DPE, subject to the restrictions imposed by
the Licensed Internal Code (LIC) running in the DPE’s SPs.
Drive Carrier The disk drive carrier is a plastic assembly that provides smooth,
reliable contact with the enclosure slot guides and the midplane
connectors. It has a handle with a latch and electrostatic discharge
(ESD) clips, which connect to the drive’s head-disk assembly. The
latch holds the disk module in place to ensure proper connection with
the midplane.
1
Link Control Cards (LCCs)
The deskside DPE includes two types of LCCs: one type for the DAE
enclosure and another type for the DPE enclosure. LCCs in the DAE
enclosure have a primary connector and an expansion connector.
LCCs in the DPE enclosure have only an expansion connector. The
figure below illustrates both types of LCC.
DAE LCC
DPE LCC
Figure 1-6 Types of LCC
Enclosures
1-9
About the Deskside Disk-Array Processor Enclosure
1
!
Check light
(amber)
Expansion FC-AL
EXP
cable connector
Latch
Active light
(green)
Figure 1-7 LCC Ports and Indicators
LCCs support and control the Fibre Channel loops, and monitor the
enclosure environment. You can configure a deskside DPE with LCCs
in A slots or B slots to provide one Fibre Channel loop, or in both A
and B slots to provide two Fibre Channel loops.
Primary FC-AL cable connector (DAE only)
PRI
1-10
An LCC in the DPE is connected to an SP via the midplane. An LCC
in the DAE is connected to the DPE using twin-axial copper cables via
standard DB-9 connectors. The cabling is not explicitly configured as
a loop (that is, a long return from the last DAE to the server), but
instead, as a set of full-duplex, point-to-point connections with the
last DAE in the chain closing the loop on its LCC.
The LCC without the primary connector independently receives and
electrically terminates the incoming FC-AL signal from the SP. The
LCC passes the input signal to its disk drives, and then drives the
output signal, via cables, to the next cabled DAE in the loop, if any.
Each LCC independently monitors the environmental status of the
enclosure using a microcomputer-controlled CRU monitor. The CRU
monitor communicates status to the SP using special protocols. These
protocols let the SP poll deskside DPE status and send commands
that control the LCC port bypass circuit and the disk-module Check
lights.
Each LCC has two status lights. These status lights are described in
the “Monitoring System Status” section of Chapter 3.
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
About the Deskside Disk-Array Processor Enclosure
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 deskside DPE
is powered up.
1
Storage Processors (SPs)
Connectors for DIMMs
Release lever
(2 per SP)
Port A (with optical GBIC)
Port B (with optical GBIC)
The SP is the DPE’s intelligent component. It defines the DPE and
differentiates the DPE from a DAE. An SP is a printed-circuit board
with dual in-line memory modules (DIMMs), a bezel with status
lights, and securing latches. The figure below locates the SP ports (A,
B, SPS/RS-232, Console/RS-232, and network/RJ45), the status
lights, the DIMM memory modules, and the FC-AL ID rotary
switches.
Captive retaining
screw (2 per SP)
SPS
Speed light
Network/RJ45
connection
reserved for
future use
FC-AL ID
switches
Check Light
(amber)
Console
Link/activity light
Active light
(green)
Figure 1-8 SP Back Panel
As shown in the figure, the SP has 4 connectors for DIMMs that
comprise both read and write caches. These DIMMs come in 128-,
256-, or 512-Mbyte capacity. Memory allocation is handled by
Navisphere Manager or other Navisphere array management utility.
Enclosures
1-11
About the Deskside Disk-Array Processor Enclosure
1
When the DPE is configured to operate in a fabric environment, only one of
the SP ports (A or B) can be used to connect to the external Fibre Channel
environment.
The SP has two Fibre Channel ports (A and B) referred to as the SP
front end, for connecting to the external Fibre Channel environment.
It also has two rotary switches for setting the FC-AL address ID when
operating in a Fibre Channel Arbitrated Loop environment.
The SP connects to disk modules and to its corresponding LCC via an
internal FC-AL. SP A connects to LCC A, and SP B to LCC B. The
SP-LCC interface is called the SP back end.
The SP also has a console connector (with a terminal icon), a
connector for the standby power supply, marked SPS, and a LAN
connection. Each SP has two status lights visible from the back of the
DPE. For the meaning of these lights, see the “Monitoring DPE
Status” section in Chapter 3.
If a DPE has one SP, you can install a second one while the DPE is
running. When both SPs are installed, you can replace either SP while
the DPE is running. You should never attempt to replace any of the
SP’s components, except the memory modules and GBICs.
1-12
Figure 1-9 Installing an SP
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
Power Supplies
About the Deskside Disk-Array Processor Enclosure
The four power supplies are located behind the drive fan pack. Each
power supply is an auto-ranging, power-factor-corrected,
multi-output, off-line converter with its own line cord and on/off
switch. The figure below shows DAE and DPE power supplies. The
DPE power supply is similar to the DAE power supply, differing in
depth (30% deeper), due to the higher power requirements of the
DPE.
ON/OFF switch/breaker
ac inlet
Active light
(green)
!
Check light
(amber)
Latch
1
Cooling Check
light (amber)
Figure 1-10 Power Supply Controls and Indicators
Each supply supports a fully configured DPE/DAE and shares
current with the other “like” supply if one is present. The drive and
LCC voltage lines have individual soft-start switches with
short-circuit current-limit capability. The soft-start switches protect
the disk drives and LCCs if you install them while the deskside DPE
is powered up. A CRU with power-related faults will not adversely
affect the operation of any other CRU.
Power Supplies
1-13
About the Deskside Disk-Array Processor Enclosure
1
Each power supply has status lights. These status lights are partially
visible through the drive fan pack, and fully visible with the drive fan
pack removed. The status lights are described in the “Monitoring
system status” section of Chapter .
A latch on the power supply locks it into place to ensure proper
connection to the midplane. You can add or remove a redundant
power supply while the deskside DPE is powered up.
1-14
EMC Disk-Array Processor Enclosure (DPE) Deskside Model FC4400/4500 Hardware Reference
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