IBM Netfinity EXP300 User manual

IBM
IBM® Netfinity® EXP300
Installation and User’s Guide
SC19-K842-30

IBM
IBM® Netfinity® EXP300
Installation and User’s Guide
SC19-K842-30

Before using this information and the product it supports, be sure to read the general information in
“Appendix B. Product warranties and notices,” on page 41.
First Edition (June 2000)
© COPYRIGHT INTERNATIONAL BUSINESS MACHINES CORPORATION, 2000. All rights reserved.
Note to U.S. Government Users — Documentation related to restricted rights — Use, duplication or disclosure is subject
to restrictions set forth in GSA ADP Schedule Contract with IBM Corp.

© Copyright IBM Corp. 2000
Contents
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
About this book . . . . . . . . . . . . . . . . . . . . . ix
How this book is organized. . . . . . . . . . . . . . . . . . . . . . . . ix
Notices used in this book. . . . . . . . . . . . . . . . . . . . . . . . . . ix
Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Chapter 1. Introduction. . . . . . . . . . . . . . . . 1
Features at a glance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Clustering support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Getting help on the World Wide Web . . . . . . . . . . . . . 2
Netfinity EXP300 bays . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Hot-swap drive bays . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Bridge card bay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ESM and power supply bays . . . . . . . . . . . . . . . . . . . . 3
Switch card bay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Front controls, indicators, and devices. . . . . . . . . . . . . . . 5
Rear controls, indicators, and connectors . . . . . . . . . . . . 6
Power-supply controls, indicators, and connectors . 6
ESM board user controls. . . . . . . . . . . . . . . . . . . . . . . . 7
System-management software support . . . . . . . . . . . . . . 8
Chapter 2. Installing the expansion unit . . 9
Operating specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Inventory checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Preparing the expansion unit . . . . . . . . . . . . . . . . . . . . . 10
Removing CRUs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Setting the interface options and ID settings. . . . . . 11
External option switches . . . . . . . . . . . . . . . . . . . . 12
Internal option switches . . . . . . . . . . . . . . . . . . . . 12
Unit ID switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Installing the expansion unit in a rack. . . . . . . . . . . . . . 14
Installing the expansion unit in a NetBAY enclosure. . 17
Completing the installation . . . . . . . . . . . . . . . . . . . . . . . 19
Installing identification labels . . . . . . . . . . . . . . . . . . 19
Cabling the expansion unit. . . . . . . . . . . . . . . . . . . . . 20
SCSI cabling information. . . . . . . . . . . . . . . . . . . . 20
SCSI cable restriction . . . . . . . . . . . . . . . . . . . . . . . 21
Power cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Turning the expansion unit on and off. . . . . . . . . . . . . . 21
Turning on the expansion unit. . . . . . . . . . . . . . . . . . 21
Turning off the expansion unit. . . . . . . . . . . . . . . . . . 22
Turning off the expansion unit in an emergency. . . 23
Turning on the expansion unit after an emergency 23
Chapter 3. Installing and replacing devices
25
Handling static-sensitive devices . . . . . . . . . . . . . . . . . . 25
Working with hot-swap drives . . . . . . . . . . . . . . . . . . . . 25
Installing hot-swap drives . . . . . . . . . . . . . . . . . . . . . 26
Replacing hot-swap drives. . . . . . . . . . . . . . . . . . . . . 28
Working with cards and boards . . . . . . . . . . . . . . . . . . . 29
Replacing a bridge card. . . . . . . . . . . . . . . . . . . . . . . . 30
Removing a bridge card. . . . . . . . . . . . . . . . . . . . . 30
Installing a bridge card . . . . . . . . . . . . . . . . . . . . . 30
Replacing the switch card. . . . . . . . . . . . . . . . . . . . . . 30
Removing the switch card. . . . . . . . . . . . . . . . . . . 31
Installing a switch card . . . . . . . . . . . . . . . . . . . . . 31
Replacing an ESM board. . . . . . . . . . . . . . . . . . . . . . . 31
Removing an ESM board. . . . . . . . . . . . . . . . . . . . 32
Installing an ESM board. . . . . . . . . . . . . . . . . . . . . 32
Working with hot-swap power . . . . . . . . . . . . . . . . . . . . 32
Removing a hot-swap power supply/fan unit . . . . 33
Installing a hot-swap power supply/fan unit . . . . . 33
Chapter 4. Solving problems . . . . . . . . . . 35
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Getting help, service, and information. . . . . . . . . . . . . . 37
Appendix A. Records . . . . . . . . . . . . . . . . 39
Identification numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Installed-device records . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Appendix B. Product warranties and
notices . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Warranty Statements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
IBM Statement of Limited Warranty for United States,
Puerto Rico, and Canada (Part 1 - General Terms) . 41
IBM Statement of Warranty Worldwide except
Canada, Puerto Rico, Turkey, United States (Part 1 –
General Terms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Part 2 - Worldwide Country-Unique Terms. . . . . . . 46
Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Edition Notice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Year 2000 readiness and instructions. . . . . . . . . . . . . 51
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Important notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Electronic emission notices . . . . . . . . . . . . . . . . . . . . . . . 52
Federal Communications Commission (FCC)
Statement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Industry Canada Class A emission compliance
statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Australia and New Zealand Class A statement. . . . 53
United Kingdom telecommunications safety
requirement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
European Union EMC Directive conformance
statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Taiwan electrical emission statement . . . . . . . . . . . . 54
Japanese Voluntary Control Council for Interference
(VCCI) statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Power cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

iv IBM®Netfinity®EXP300 Installation and User’s Guide

© Copyright IBM Corp. 2000 v
Safety
Before installing this product, read the Safety Information book.
Antes de instalar este produto, leia o Manual de Informações sobre Segurança.
Læs hæftet med sikkerhedsforskrifter, før du installerer dette produkt.
Lue Safety Information -kirjanen, ennen kuin asennat tämän tuotteen.
Avant de procéder àl'installation de ce produit, lisez le manuel Safety Information.
Vor Beginn der Installation die Broschüre mit Sicherheitshinweisen lesen.
Prima di installare questo prodotto, leggere l'opuscolo contenente le informazioni
sulla sicurezza.
Pred instalací tohoto produktu si prectete prírucku bezpecnostních instrukcí.
Przed zainstalowaniem tego produktu należy przeczytać broszurę Informacje Dotyczące
Bezpieczeństwa.

vi IBM®Netfinity®EXP300 Installation and User’s Guide
Lees voordat u dit product installeert eerst het boekje met veiligheidsvoorschriften.
Les heftet om sikkerhetsinformasjon (Safety Information) før du installerer dette
produktet.
Antes de instalar este produto, leia o folheto Informações sobre Segurança.
Antes de instalar este producto, lea la Información de Seguridad.
Läs säkerhetsinformationen innan du installerar den här produkten.
Перед установкой продукта прочтите брошюру по технике безопасности
(Safety Inf rmati n).
Pred inštaláciou tohto produktu si pre ítajte Informa núbrožúrku o bezpe nosti.
Preden namestite ta izdelek, preberite knjižico Varnostne informacije.
Installálás el tt olvassa el a Biztonsági el írások kézikönyvét !

vii
Statement 1
Danger
Electrical current from power, telephone, and communication cables is
hazardous.
To avoid a shock hazard:
•Do not connect or disconnect any cables or perform installation,
maintenance, or reconfiguration of this product during an electrical storm.
•Connect all power cords to a properly wired and grounded electrical
outlet.
•Connect to properly wired outlets any equipment that will be attached to
this product.
•When possible, use one hand only to connect or disconnect signal cables.
•Never turn onany equipment when there is evidence of fire, water, or
structural damage.
•Disconnect the attached power cords, telecommunications systems,
networks, and modems before you open the device covers, unless
instructed otherwise in the installation and configuration procedures.
•Connect and disconnect cables as described in the following table when
installing, moving, or opening covers on this product or attached devices.
To connect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlet.
5. Turn device ON.
To disconnect:
1. Turn everything OFF.
2. First, remove power cords from
outlet.
3. Remove signal cables from
connectors.
4. Remove all cables from devices.

viii IBM®Netfinity®EXP300 Installation and User’s Guide
Statement 4
≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs)
CAUTION:
Use safe practices when lifting.
Statement 5
CAUTION:
The power control button on the device and the power supply do not turn off
the electrical current supplied to the device. The device also might have more
than one power cord. To remove all electrical current from the device, ensure
that all power cords are disconnected from the power source.
1
2

© Copyright IBM Corp. 2000 ix
About this book
This book provides instructions for installing and replacing components in your IBM
Netfinity EXP300 storage expansion unit. It also provides information on
troubleshooting your expansion unit. To set up your expansion unit, refer to
“Chapter 2. Installing the expansion unit,”on page 9 for detailed information.
How this book is organized
“Chapter 1. Introduction,”on page 1 describes the expansion unit. This chapter
includes an overview of the expansion unit features and components.
“Chapter 2. Installing the expansion unit,”on page 9 contains the information and
instructions needed to install the expansion unit in an Electronic Industries
Association (EIA) standard rack or NetBAY enclosure. This chapter also contains
operating specifications, an inventory checklist, option-switch settings, and power-
cord routing information. In addition, this chapter contains instructions for turning
the expansion unit on and off during normal and emergency situations.
“Chapter 3. Installing and replacing devices,”on page 25 contains step-by-step
instructions for installing and removing customer replaceable units (CRUs), such as
hard disk drives, power supplies, and environmental services monitor (ESM) boards.
“Chapter 4. Solving problems,”on page 35 contains the problem symptoms and error
messages that are specific to your expansion unit. This chapter also provides
instructions on how to obtain service and technical assistance for your expansion unit.
“Appendix A. Records,”on page 39 provides a section to record and update
important information about your expansion unit, including serial number and
device records. Whenever you add components to your expansion unit, be sure to
update the information in this appendix.
“Appendix B. Product warranties and notices,”on page 41 contains product notices,
warranties, trademarks, and acknowledgments.
Notices used in this book
This book contains notices to highlight information or provide safety information:
•Notes
These notices provide important tips, guidance, or advice.
•Attention
These notices indicate possible damage to programs, devices, or data.
•Caution
These notices indicate situations that can be potentially hazardous to you. A
caution notice is placed just before a description of a potentially hazardous
procedure step or situation.

xIBM®Netfinity®EXP300 Installation and User’s Guide
Related publications
Additional publications are available for purchase from IBM. For a list of publications
available in your country:
•In the U.S. and Puerto Rico, call 1-800-426-7282.
•In Canada, call 1-800-465-1234.
•In other countries, contact the IBM support organization that services your area,
your IBM marketing representative, or your IBM reseller.

© Copyright IBM Corp. 2000 1
Chapter 1. Introduction
The IBM®Netfinity®EXP300 is a compact unit that provides high-capacity, small
computer system interface (SCSI) disk storage. It supports up to 14 Ultra160 SCSI
drives on a single or dual logical bus. It delivers fast, high-volume data transfer,
retrieval, and storage functions across multiple drives, to multiple hosts. The
expansion unit is designed for continuous, reliable service; the modular, redundant
disk drives, power supplies with built-in fans, and environmental services monitor
(ESM) boards use hot-swap technology for easy replacement without turning off the
expansion unit.
The expansion unit supports Ultra160 SCSI for the host and drive interfaces and it is
designed for easy installation and integration into a variety of system environments.
After you review the introductory information provided in this chapter, refer to
“Chapter 2. Installing the expansion unit,”on page 9 to begin the installation process.
Features at a glance
The following table summarizes the features of the expansion unit. For a list of the
operating specifications, such as weight, height, and heat output, see “Operating
specifications”on page 9.
General
•Modular components:
—High-capacity disk
drives
—Environmental services
monitor (ESM) boards
—Power supplies with
built-in fans
•Technology:
—Supports disk array
technology
—Supports clustering
—SCSI (Ultra160) host
interface
—Redundant data storage,
power and cooling
system, and ESM boards
—Hot-swap technology
for drives, power
supplies with built-in
fans, and ESM boards
•User interface:
—Built-in power, activity,
and fault indicators
—Identification labeling
on customer replaceable
units (CRUs), rear
indicator lights,
switches, and connectors
—Easy-to-replace drives,
power supplies, ESM
boards, and fans
Disk drive storage
•Current capabilities:
—Maximum drives per
expansion unit: 14
—Drives per SCSI bus: 7
—SCSI buses per unit: 2
—SCSI buses can be
configured as one
continuous SCSI bus.
ESM boards
•Technology and interfaces:
—SCSI: Ultra160
—SCSI bus interface: Two
68-pin, Very High
Density Connector
Interface (VHDCI)
connectors for SCSI bus
cables

2 IBM®Netfinity®EXP300 Installation and User’s Guide
Clustering support
Clustering is a feature of the expansion unit. Clustering is a means of sharing SCSI
buses and disk drives among SCSI controllers to provide redundancy of SCSI
controllers and servers. This redundancy is important if a hardware component fails.
If a hardware component fails after clustering has been set up, another server will
take ownership of the disk drives or SCSI bus.
The IBM Netfinity EXP300 supports twin-tailed clustering. With twin-tailed
clustering, you can connect two IBM ServeRAID®controllers to an EXP300 expansion
unit. In the twin-tailed clustering environment, you can use dual-host controllers
cabled separately to the EXP300 expansion unit; however, only a single logical bus of
13 drives is supported. Each SCSI device on a SCSI bus must have a unique ID. To
prevent conflicts in a twin-tailed configuration, do not install a drive in the bay that
uses SCSI ID 6 because your secondary SCSI ServeRAID controller is set to 6.
Service tip: If you use IBM ServeRAID controllers in a cluster configuration, the
termination power LED on the back of the expansion unit is useful. The ServeRAID
controller provides the signal for termination power. If the termination power LED is
not lit, it indicates that a particular EXP300 expansion unit is not attached to a
controller that is turned on. Make a note of which EXP300 expansion unit is attached
to which server before the hardware is serviced.
Clustering requires additional hardware and specialized software. For more
information, visit the IBM Netfinity Cluster Solutions Web site at:
http://www.ibm.com/pc/us/netfinity/clustering
Getting help on the World Wide Web
You can obtain up-to-date information about your IBM Netfinity EXP300, a complete
listing of the options that are supported on your model, and information about other
IBM server products by accessing the IBM web page at:
http://www.ibm.com/pc/us/netfinity
See “Getting help, service, and information”on page 37 for more information.
Netfinity EXP300 bays
The following sections describe the hot-swap CRUs, the switch card bay, and the
bridge card bay on the Netfinity EXP300 expansion unit.
With the hot-swap features of the Netfinity EXP300, you can remove and replace hard
disk drives, power supplies/fans, and ESM boards without turning off the expansion
unit. Therefore, you can maintain the availability of your system while a hot-swap
device is removed, installed, or replaced. See “Chapter 3. Installing and replacing
devices,”on page 25 for more information.
Hot-swap drive bays
The following illustration shows the location of the hot-swap drive bays accessible
from the front of your expansion unit. The Netfinity EXP300 supports up to 14 IBM
Ultra160 SCSI or Ultra2 SCSI hard disk drives. These drives come pre-installed in a
drive tray. The drive and tray assembly is called a drive CRU (customer replaceable
unit). You can install the drive CRUs in the 14 drive bays on the front of the expansion
unit.

Chapter 1. Introduction 3
In the following figure, seven of the 14 bays contain drive CRUs, and seven bays
contain filler panels. To maintain proper cooling within your expansion unit, always
keep a filler panel in each drive bay that does not contain a drive CRU. For
information on installing and replacing drive CRUs, refer to “Chapter 3. Installing
and replacing devices,”on page 25.
Attention: Never hot-swap a drive CRU when its green activity light emitting diode
(LED) is flashing. Hot-swap a drive CRU only when its amber fault LED is lit (not
flashing) or when the drive is inactive with the green activity LED off (not flashing).
Bridge card bay
The bridge card is accessible from the front of the unit. You can replace the bridge
card CRU, but you must turn off the expansion unit before doing so. Refer to
“Replacing a bridge card”on page 30 for step-by-step instructions.
Attention: Never remove the bridge card while the expansion unit is turned on.
Refer to “Turning the expansion unit on and off”on page 21.
ESM and power supply bays
The following illustration shows the location of the environmental services monitor
(ESM) bays (for the hot-swap ESM boards) and the power supply bays where the hot-
swap power supplies are located.
Hot-swap ESM bays
The ESM boards provide a SCSI interface to the drives and monitor the
overall status of the expansion unit. Refer to “Replacing an ESM board”on
page 31 for more information.
Hot-swap drive bays Filler panel
Bridge card bay
0
1
2
3
4
5
6
7
8
9
Hot-swap power supply/fan bays
Hot-swap ESM bays

4 IBM®Netfinity®EXP300 Installation and User’s Guide
Hot-swap power supply/fan bays
Your expansion unit comes with two 500 Watt hot-swap and redundant
power supplies with built-in fans. The power supplies are redundant in that
a single power supply can provide adequate power and cooling for the entire
expansion unit. A single power supply can support up to 14 hard disk drives;
however, both power supplies must be installed, even if one power supply is
not operational. Refer to “Working with hot-swap power”on page 32 for
step-by-step instructions.
Switch card bay
Your expansion unit comes with a switch card that contains five external option
switches and four internal option switches. The switch card is located on the back of
the expansion unit between the two power supplies. The switch card contains
switches that control how power is supplied to the expansion unit and what
expansion unit services are enabled (for example, switching between a tower
configuration and a rack configuration or switching between a single bus and a dual-
bus configuration.) In a dual-bus configuration, each bus uses seven drives. A single-
bus configuration uses all 14 drives. To access the four internal option switches, you
must turn off the expansion unit; then remove the switch card. Refer to “Replacing
the switch card”on page 30 for step-by-step instructions.
Attention: Never remove the switch card or change the switch card settings while
the expansion unit and host server is turned on. Refer to “Turning the expansion unit
on and off”on page 21.
In addition to the internal and external option switches, the switch card also has a 10-
position unit ID switch for setting the expansion unit ID using values 0 through 9.
System-management software, such as IBM Netfinity Manager™, uses the ID when it
provides data and alerts for the expansion unit.
For more information on option switch settings, see “Setting the interface options and
ID settings”on page 11.

Chapter 1. Introduction 5
The following illustration shows the location of the switch card on the expansion unit.
Front controls, indicators, and devices
The primary controls on the front of the expansion unit are shown in the following
illustration.
Power-on LED (green)
This green light indicates that the unit has good dc power.
General-system-error LED (amber)
When lit, this amber LED indicates that the unit has a fault, such as in a power
supply, ESM board, or hard disk drive.
Bridge card bay
This is the location of the bridge card CRU.
0
1
2
3
4
5
6
7
8
9
External option switches
Switch card
Unit ID switch
0
1
2
3
4
5
6
7
8
9
1
2
3
54
Power-on LED (green)
Activity
LED (green)
General-system-
error LED (amber)
Fault
LED (amber) Drive bays
Tray
handle Latch
Bridge
card bay
Drive CRU
Filler panel

6 IBM®Netfinity®EXP300 Installation and User’s Guide
Filler panel
Expansion units shipped without a full set of drives (14) contain filler panels
in the unused drive bays. Before installing new drives, you must remove the
filler panels and save them for later use. Each of the 14 bays must always
contain either a filler panel or a drive CRU.
Drive bays There are 14 drive bays that contain either a drive CRU or a filler panel.
Latch This multipurpose blue latch releases or locks the drive CRU in place.
Tray handle You can use this multipurpose handle to insert or remove a drive CRU.
Fault LED (amber)
Each drive CRU has a fault LED. When lit, this amber LED indicates a drive
failure. When flashing, this amber LED indicates that a drive Identify or
Rebuild is in progress.
Activity LED (green)
Each drive CRU has an activity LED. When flashing, this green LED indicates
drive activity.
Drive CRU You can install up to 14 hot-swap drive CRUs in the expansion unit. Each
drive CRU consists of a slim hard disk drive and tray.
Rear controls, indicators, and connectors
Two hot-swap power supplies with built-in fans and two environmental services
monitor (ESM) boards are accessible from the back of the expansion unit. These
components contain several user indicators and connectors.
Power-supply controls, indicators, and connectors
The following is a list of the controls, indicators, and connectors at back of the EXP300
expansion unit. A description of each item is included:
Thumbscrews Loosen the thumbscrews to remove or install a power supply.
AC power connector
The power cord for the power supply connects here.
Power-supply/Fan CRU
The two hot-swap power supplies with built-in fans are located on the back of
the expansion unit.
0
1
2
3
4
5
6
7
8
9
Thumbscrews Thumbscrews
AC power connectorAC power connector
Power
supply/Fan CRU
Power
supply/Fan CRU
AC power LED (green)
DC power LED (green)
Fault LED (amber) Power
on/off
switch
Power
on/off
switch
Handle Handle

Chapter 1. Introduction 7
Attention: The EXP300 comes with two power-supply/fan units installed.
When one power supply fails, the power-supply unit must be replaced to re-
establish redundancy. When replacing the failed unit with the new power
supply unit, ensure that this operation is performed in less than 10 minutes to
prevent any overheating.
The fan that is visible from the rear of the power supply is an auxiliary fan
that is normally off. This fan turns on only when the main fan within the
power supply fails.
Power on/off switch
Use this switch to turn the power supply on and off.
Fault LED (amber)
When completely lit, this amber fault LED indicates a power supply failure or
that a redundant power supply is not on. This LED also flashes when the
built-in fan fails.
DC power LED (green)
This green LED is lit when the expansion unit is turned on and is supplying
both 5 V and 12 V dc power.
AC power LED (green)
This green LED is lit when the expansion unit is receiving ac power.
Handles The two handles are used for installing and removing the power supply.
ESM board user controls
Two environmental services monitor (ESM) boards are accessible from the back of the
expansion unit. These components contain several user controls, indicators, and
connectors.
ESM board The environmental services monitor (ESM) boards contain the SCSI
controls, LEDs, and connectors.
Fault LED (amber)
When lit, this amber LED indicates an ESM board failure.
SCSI reset LED
When lit, this green LED indicates a SCSI bus reset.
0
1
2
3
4
5
6
7
8
9
Push pin
Push pin
ESM board
ESM board
Termination-
power
LED (green)
Termination-
power
LED (green) LVD/SE
LED (green) LVD/SE LED (green)
Activity
LED (green)
SCSI reset
LED (green)
SCSI reset
LED (green) Fault
LED (amber) Fault
LED (amber)
Activity
LED (green)
SCSI Bus
connector 2 SCSI Bus connector 1

8 IBM®Netfinity®EXP300 Installation and User’s Guide
Push pins Each ESM board has an orange push pin at the lower left of the board. Use
the orange push pin and lever to remove and insert the ESM board.
Termination-power LED (green)
When lit, this green LED indicates that termination power is present. When a
termination-power LED is lit, it indicates that the other end of the cable is
connected to a powered-on controller. Each external bus has a separate
termination-power LED.
LVD/SE LED (green)
When lit, this green LED indicates that the external host bus is in low voltage
differential (LVD) mode. When this LED is off, this indicates that the external
host bus is in single-ended (SE) mode. Each external bus has a separate
LVD/SE LED. Only LVD host bus controllers are supported.
SCSI bus connector
The 68-pin Very High Density Connector Interface (VHDCI) connectors are
for attaching your SCSI cables to SCSI bus 1 and SCSI bus 2.
Activity LED (green)
When lit, this green LED indicates there is activity on the external SCSI bus.
Each external bus has a separate activity LED.
System-management software support
The Netfinity EXP300 provides software alert functions through the system monitor
functions provided in the IBM Netfinity Manager, IBM Netfinity Director, and IBM
ServeRAID manager software.
The following alerts are supported:
•Disk drive disabled
•Power supply failure
•Cooling failure
•IBM Netfinity EXP300 too hot
•Vital Product Data for subcomponents
Note: You must have the correct level of system-management software on your
server to enable this functionality.
You must use ServeRAID Version 4.20 or later for your ServeRAID controller to report
status and alerts properly. To download the latest ServeRAID software, visit the IBM
web site at: http://www.ibm.com/pc/support
For up-to-date information about the IBM Netfinity Manager and Netfinity Director
software support available for your EXP300, visit the IBM Web site at:
http://www.ibm.com/pc/us/netfinity
For Netfinity Manager users, download Netfinity Manager Version 5.20.6 SP1 or later.
For Netfinity Director users, download Netfinity Director, UM Server extensions
Version 2.12 SP1.