Digital Equipment StorageWorks UltraSCSI DS-BA370 Series User manual

DIGITALStorageWorks
UltraSCSIRAIDEnclosure
(DS–BA370–Series)
User'sGuide
Part Number: EK–BA370–UG. B01
January 1998
The DIGITAL DS–BA370-series UltraSCSI RAID rack-mountable
enclosure is the basic building block of the UltraSCSI RAID
subsystems. This guide, and the related publications comprise the
basic documentation set for these subsystems.
Digital Equipment Corporation
Ma
y
nard, Massachusetts

January 1998
Digital Equipment Corporation makes no representations that the use of its products in the
manner described in this publication will not infringe on existing or future patent rights, nor do
the descriptions contained in this publication imply the granting of licenses to make, use, or sell
equipment or software in accordance with the description.
Possession, use, or copying of the software described in this publication is authorized only
pursuant to a valid written license from DIGITAL or an authorized sublicensor.
© Digital Equipment Corporation 1997, 1998. All rights reserved.
_____________________ Note _____________________
This equipment generates, uses, and may emit radio frequency energy. The
equipment has been type tested and found to comply with the limits for a Class A
digital device pursuant to Part 15 of the FCC rules which are designed to provide
reasonable protection against such radio frequency interference. Operation of this
equipment in a residential area may cause interference in which case the user at
his own expense will be required to take whatever measures may be required to
correct the interference. Any modifications to this equipment – unless expressly
approved by the manufacture – can void the user’s authority to operate this
equipment under part 15 of the FCC rules.
________________________________________________
The following are trademarks of Digital Equipment Corporation: DIGITAL, StorageWorks, and
the DIGITAL logo.

iii
Table of Contents
Preface
Intended Audience ................................................................ xi
Structure ............................................................................... xi
Documentation Conventions ...............................................xiii
Related Documents ............................................................. xiv
Manufacturer’s Declarations
Electromagnetic Compatibility............................................. xv
Acoustic Noise Declarations................................................ xvi
1 Introducing the UltraSCSI RAID Enclosure
An UltraSCSI Bus Overview...............................................1–4
Product Description.............................................................1–5
Enclosure Status................................................................1–10
Typical Controller Status LEDs................................1–11
Environmental Monitoring Unit (EMU) Status LEDs1–12
Power Verification and Address (PVA) Status LEDs1–12
Power Supply Status LEDs.......................................1–13
SBB Status LEDs.....................................................1–13
I/O Module LEDs.....................................................1–14
Options .............................................................................1–14
Power.......................................................................1–14
Redundant Power Supply Configuration..........1–15
Optimum Power Configuration .......................1–15
Dual Controllers.......................................................1–16
UltraSCSI Bus Expansion ........................................1–16

Table of Contents
iv
2 Operating the UltraSCSI Enclosure
UltraSCSI Configuration Rules...........................................2–1
General......................................................................2–2
UltraSCSI RAID Controllers......................................2–3
UltraSCSI Nodes........................................................2–4
UltraSCSI Enclosures.................................................2–5
Enclosure Addressing.................................................2–6
Starting the Subsystem........................................................2–7
Shutting Down the Subsystem.............................................2–9
Using the Power Standby Mode ...............................2–10
Applying DC Power.................................................2–11
Turning Off the Subsystem ......................................2–12
Turning On the Subsystem Power ............................2–13
Error Detection, Reporting, Analysis.................................2–14
Enclosure Status................................................................2–15
SBB Shelf Status......................................................2–18
SBB Configuration...................................................2–18
SBB Failure.............................................................2–19
3 Environmental Monitoring Unit (EMU)
Product Description.............................................................3–2
Controller Status........................................................3–3
I/O Module Status......................................................3–4
Enclosure Configuration Information.........................3–4
EMU Front Panel.......................................................3–5
EMU Communications Connectors...................3–5
System Fault LED and Alarm Control Switch...3–5
Temperature Fault LED....................................3–6
Power Supply Status LED.................................3–6
RS232 Connector..............................................3–6
Blower Fault LEDs...........................................3–7
Configuring the EMU .........................................................3–7
Connecting the EMU Communication Bus..........................3–8
EMU Firmware...................................................................3–9
Setting the Temperature Sensors.......................................3–10
Setting the Blower Speed Control .....................................3–13
EMU Status Reporting......................................................3–14
Alarm Control Switch..............................................3–15
Subsystem Status LEDs ...........................................3–16
Monitoring Power Supply Operation........................3–17
Error Condition Reporting.................................................3–17

Table of Contents
v
Configuration Fault Code Reporting..................................3–21
Replacing an EMU............................................................3–27
4 Power Verification and Addressing (PVA)
Product Description.............................................................4–2
Functions ............................................................................4–3
PVA Operation....................................................................4–3
EMU Installation Monitoring.....................................4–3
SBB Device IDs.........................................................4–4
Monitoring Power Supply Operation..........................4–5
Setting the Enclosure Address.............................................4–6
Master Enclosure Address..........................................4–7
Expansion Enclosure Addresses .................................4–8
Implementing the Standby Power Mode..............................4–9
Replacing a PVA...............................................................4–11
5 Single-Ended I/O Modules
Replacing I/O Modules and Cables .....................................5–3
Expanding the UltraSCSI Bus .............................................5–3
Controlling the Internal SCSI Bus.......................................5–4
Controlling the External SCSI Bus......................................5–4
Controlling the Fault Bus ....................................................5–4
Error Reporting...................................................................5–5
Incompatible I/O Modules..........................................5–5
TERMPOWER Errors................................................5–6
Rules for Expanding an UltraSCSI Bus ...............................5–7
Cabling an UltraSCSI Subsystem ........................................5–8
Preliminary Procedures ..............................................5–9
Selecting an UltraSCSI VHDCI Cable......................5–10
Shutting Down the Subsystem..................................5–11
Cabling a Three–Enclosure Subsystem.....................5–12
Cabling a Two–Enclosure Subsystem.......................5–16
Replacing an I/O Module ..................................................5–19
Replacing a Cable.............................................................5–21

Table of Contents
vi
6 Power Distribution
Power System Overview.....................................................6–2
Power Configurations.................................................6–2
Standard (n+1)..................................................6–2
n+4 (Redundant)...............................................6–3
n+4 (Optimum).................................................6–3
AC Power Source.......................................................6–3
AC Input Power Controller ........................................6–4
Shelf Power Supplies.................................................6–5
AC Power Buses .................................................................6–6
Standard (n+1) Power Configuration...................................6–7
Redundant (n+4) Power Supply Configurations...................6–8
Optimum (n+4) Power Supply Configurations.....................6–9
Power Supply Error Condition Reporting..........................6–10
Replacing a Power Supply ................................................6–11
Power Controller Error Condition Reporting.....................6–13
Replacing a Power Controller ...........................................6–14
7 Storage Devices
Handling an SBB................................................................7–2
SBB Device Address...........................................................7–3
SBB Status Reporting .........................................................7–3
Identifying a Storage Device...............................................7–5
Guidelines for Replacing SBBs...........................................7–7
Prerequisites for Replacing an SBB............................7–7
SBB Replacement Methods........................................7–7
Hot Swap..........................................................7–7
Warm Swap......................................................7–8
Cold Swap ........................................................7–8
The SBB Connector...................................................7–9
Replacing an SBB.............................................................7–10
8 Enclosure Blowers
Function and Operation.......................................................8–3
Error Condition Reporting...................................................8–4
Replacing a Blower.............................................................8–4

Table of Contents
vii
A UltraSCSI Enclosure Specifications
Physical and Electrical Specifications ................................A–2
Operating Environments.....................................................A–3
SBB Thermal Stabilization.................................................A–4
B Assembling an UltraSCSI RAID Subsystem
Installation Sequence .........................................................B–2
Installing the Power System...............................................B–3
Installing the EMU.............................................................B–4
Installing the PVA..............................................................B–4
Installing the Disk Drives...................................................B–4
Installing the I/O Modules..................................................B–5
Installing Expansion Cables ...............................................B–5
Installing Controller “A”....................................................B–6
Installing Controller “B”....................................................B–9
Internal Cables.................................................................B–10
Glossary

Table of Contents
viii
Figures
Figure 1–1 DS–BA370 Series UltraSCSI Enclosure...........1–1
Figure 1–2 Typical DS–BA370 Applications .....................1–3
Figure 1–3 Typical Enclosure Bus and Device Addressing.1–6
Figure 1–4 DS–BA370 Status LEDs Locations ................1–10
Figure 1–5 RA7000 Status LEDs Locations .....................1–10
Figure 1–6 Typical Array Controller OCP LEDs..............1–11
Figure 1–7 EMU Status LED Locations...........................1–12
Figure 1–8 PVA Status LED Locations............................1–12
Figure 1–9 Power Supply Status LED Locations..............1–13
Figure 1–10 SBB Status LED Locations...........................1–13
Figure 1–11 I/O Module TERMPOWER LEDs................1–14
Figure 2–1 Power Supply Bezel Label ...............................2–5
Figure 2–2 AC Power Distribution.....................................2–8
Figure 2–3 Enclosure Status LEDs...................................2–15
Figure 2–4 Pedestal Status LEDs......................................2–16
Figure 2–5 Shelf Status LEDs..........................................2–18
Figure 2–6 SBB Status LEDs...........................................2–19
Figure 3–1 EMU................................................................3–1
Figure 3–2 EMU Location .................................................3–2
Figure 3–3 EMU Major Component Locations...................3–5
Figure 3–4 EMU Communication Connections..................3–8
Figure 3–5 EMU Status LEDs.........................................3–14
Figure 4–1 PVA................................................................4–1
Figure 4–2 PVA Location ..................................................4–2
Figure 4–3 PVA Major Components ..................................4–2
Figure 4–4 Master Enclosure Device IDs ...........................4–4
Figure 4–5 Master Enclosure SCSI Bus IDs .......................4–7
Figure 4–6 Enclosure Address 2 SCSI Bus IDs...................4–8
Figure 4–7 Enclosure Address 3 SCSI Bus IDs...................4–9
Figure 5–1 Single-Ended I/O Module.................................5–1
Figure 5–2 I/O Module Location........................................5–2
Figure 5–3 I/O Module Numbering....................................5–2
Figure 5–4 I/O Module TERMPOWER LEDs....................5–6
Figure 6–1 Enclosure Power System..................................6–1
Figure 6–2 AC Power Input Controller...............................6–4
Figure 6–3 Shelf Power Supply..........................................6–5
Figure 6–4 Enclosure AC Power Buses..............................6–6
Figure 6–5 Standard Power Configuration..........................6–7
Figure 6–6 Redundant Power Configuration.......................6–8
Figure 6–7 Power Supply Status LEDs.............................6–10
Figure 7–1 SBB Handling Rules ........................................7–2

Table of Contents
ix
Figure 7–2 SBB Status LEDs .............................................7–3
Figure 7–3 Typical SBB Regulatory Label........................7–5
Figure 7–4 Typical SBB Bezel Label.................................7–6
Figure 8–1 Enclosure Blower Assemblies Locations ..........8–2
Tables
Table 1–1 UltraSCSI Subsystems Capacities......................1–7
Table 2–1 DIGITAL–Supported Enclosure Address Settings2–6
Table 2–2 Turning Off the DC Power...............................2–10
Table 2–3 Turning On the DC Power...............................2–11
Table 2–4 Turning Off the Subsystem Power ...................2–12
Table 2–5 Turning On the Subsystem Power....................2–13
Table 2–6 Enclosure Status Monitoring............................2–14
Table 2–7 Enclosure Status LED Displays .......................2–17
Table 3–1 EMU Communication Cables ............................3–8
Table 3–2 EMU Set Point Temperature Conversions........3–11
Table 3–3 Temperature Set Point Rules............................3–12
Table 3–4 Subsystem Status LEDs Displays.....................3–16
Table 3–5 DC Voltage Ranges.........................................3–17
Table 3–6 EMU Status Displays........................................3–18
Table 3–7 EMU Fault Code Displays................................3–22
Table 3–8 Removing an EMU..........................................3–27
Table 3–9 Installing an EMU ..........................................3–27
Table 3–10 EMU Communications Cables.......................3–29
Table 4–1 DC Voltage Ranges...........................................4–5
Table 4–2 Setting the Enclosure Configuration .................4–6
Table 4–3 DIGITAL Supported Enclosure Addresses.........4–7
Table 4–4 Turning Off the DC Power Distribution...........4–10
Table 4–5 Turning On the DC Power Distribution............4–10
Table 4–6 Removing a PVA.............................................4–11
Table 4–7 Installing a PVA..............................................4–12
Table 5–1 TERMPOWER Problems...................................5–6
Table 5–2 UltraSCSI Bus Expansion Rules ........................5–8
Table 5–3 Preliminary Cabling Procedures.........................5–9
Table 5–4 UltraSCSI Bus Cables......................................5–10
Table 5–5 Shutting Down the UltraSCSI Subsystem.........5–11
Table 5–6 Installing Three Enclosure Subsystem Cables..5–13
Table 5–7 Turning On the UltraSCSI Subsystem..............5–15
Table 5–8 Installing Two Enclosure Subsystem Cables....5–16
Table 5–9 Removing an I/O Module ................................5–19

Table of Contents
x
Table 5–10 Installing an I/O Module................................5–20
Table 5–11 Removing an Expansion Cable......................5–22
Table 5–12 Installing an Expansion Cable........................5–23
Table 6–1 Shelf Power Status LED Displays....................6–10
Table 6–2 Removing a Power Supply...............................6–12
Table 6–3 Installing a Shelf Power Supply.......................6–13
Table 6–4 Removing an AC Input Power Controller ........6–15
Table 6–5 Installing an AC Power Controller...................6–16
Table 7–1 SBB Status LED Displays .................................7–4
Table 7–2 Removing an SBB...........................................7–10
Table 7–3 Installing an SBB ............................................7–11
Table 8–1 Removing a Blower...........................................8–5
Table 8–2 Installing a Blower Assembly............................8–6

xi
Preface
The DIGITAL StorageWorks UltraSCSI RAID Enclosure
(DS–BA370-Series) User’s Guide describes the functions, operations,
components, configurations, assembly, and specifications of this enclosure.
Intended Audience
This document is for use by personnel responsible for designing,
configuring, assembling, installing, and operating UltraSCSI RAID
subsystems using a DS–BA370-series enclosure mounted in either a data
center cabinet or a departmental server cabinet.
Structure
The organization of this manual is as follows:
Chapter 1
This chapter describes the UltraSCSI RAID enclosure functions, uses,
components, and features.
Chapter 2
This chapter describes how to configure and operate an UltraSCSI RAID
enclosure.
Chapter 3
This chapter describes the environmental monitoring unit (EMU) operation,
functions, uses, configuration, and replacement procedures.
Chapter 4
This chapter describes the power verification and addressing (PVA)
assembly operation, functions, uses, configuration, and replacement
procedures.

Preface
xii
Chapter 5
This chapter describes the single-ended I/O module operation, functions,
uses, configuration, and replacement procedures.
Chapter 6
This chapter describes the enclosure power distribution components
operation, functions, uses, configuration, and replacement procedures.
Chapter 7
This chapter describes the disk drives operation, functions, uses,
configuration, and replacement procedures.
Chapter 8
This chapter describes blower operation, status reporting, and replacement
procedures.
Appendix A
This appendix describes the enclosure physical, electrical, and
environmental specifications.
Appendix B
This appendix describes the procedures for installing components in an
enclosure to create an UltraSCSI RAID subsystem.
Glossary

Preface
xiii
Documentation Conventions
The documentation conventions used in this publication are as follows:
boldface
type Boldface type indicates the first instance of terms being
defined in the text, the glossary, or both.
italic type Italic type indicates emphasis and publication titles.
Italic type in the glossary indicates a cross–reference.
A/R As required
LED is OFF
LED is ON or blinking slowly
LED is FLASHING (blinking rapidly)
Warning
Information essential to people’s safety
Caution
Information the user needs to know to avoid damaging
the software or hardware.
Note Information that might be of special importance to the
user.
Single-ended SCSI bus
Differential SCSI bus

Preface
xiv
Related Documents
The following publications contain additional information about the
UltraSCSI RAID subsystem.
Publication Title Order Number
AC Input Power Controller (DS–BA35X–HE) Installation Guide EK–35XHE–IG
Blower (DS–BA35X–MK) Installation Guide EK–35XMK–IG
Environmental Monitoring Unit (DS–BA35X–EB) Installation Guide EK–35XEB–IG
HSZ70 Array Controller HSOF Version 7.0 CLI Reference Manual EK–CLI70–RM
HSZ70 Array Controller HSOF Version 7.0 Configuration Manual EK–HSZ70–CG
HSZ70 Array Controller HSOF Version 7.0 Service Manual EK–HSZ70–SV
Installing a Host Bus Cable Ferrite Bead EK–SWXES–IG
Installing an HSZ70 ECB Cable EK–HSZ70–TE
Operating System Specific Release Notes See system specific
“Getting Started”
manual
Power Verification and Addressing Assembly (DS–BA35X–EC)
Installation Guide EK–35XEC–IG
Shelf Power Supply (DS–BA35X–HH) Installation Guide EK–35XHH–IG
Single-Ended I/O Module (DS–BA35X–MN) Installation Guide EK–35XMN–IG
UltraSCSI RAID Data Center Cabinet (DS–SW600-Series)
Installation and User’s Guide EK–SW600–UG
UltraSCSI Subsystem Standby Power Operation EK–POWER–IG

xv
Manufacturer’s Declarations
Electromagnetic Compatibility
You can install this CE–Mark Class A certified product in a commercial or
an office environment.
__________________ WARNING! ___________________
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.
________________________________________________
__________________ ACHTUNG! ___________________
Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In
Wohnbereichen können bei Betrieb dieses Gerätes
Rundfunkstörungen auftreten, in welchen Fällen der
Benutzer für entsprechende Gegenmaßnahmen
verantwortlich ist.
________________________________________________
_______________AVERTISSEMENT! ________________
Ceci est un produit de Classe A. Dans un environnement
domestique, ce produit risque de créer des interférenences
radioélectriques, il appartiendra alors à l’utilisateur de
prendre les mesures spécifiques appropriées.
________________________________________________

Manufacturer’s Declarations
xvi
Acoustic Noise Declarations
DIGITAL declares that the acoustic values of this product are as follows:
Acoustics – Declared Values per ISO 9296 and ISO 7779:
Sound Power Level
LWAd, B
Sound Pressure Level
LpAm dBA
(bystander positions)
Product Idle Operate Idle Operate
RAID Array 7000 Subsystem
(DS–SWXRE–HA) with:
2 – ac power controllers
(DS–BA35X–HE)
8 – 180 W shelf power supplies
(BA35X–HH)
24 – disk drives (2, 4, 9 GB)
6.1 N/A 48.4 48.4
RAID Array 7000 Subsystem
(DS–SWXRE–HA) with:
2 – ac power controllers
(DS–BA35X–HE)
8 – 180 W shelf power supplies
(BA35X–HH)
24 – disk drives (2, 4, 9 GB)
6.1 6.3 48.4 48.4
______________________________ Note _____________________________
Current values for sound power levels are available from DIGITAL representatives.
1 Bel = 10 dBA.
_________________________________________________________________

Manufacturer’s Declarations
xvii
Schallemissionswerte – Werteangaben nach ISO 9296 und ISO 7779/DIN EN27779:
Schalleistungspegel
LWAd, B
Schalldruckpegel
LpAm, dBA
(Zuschauerpositionen)
Gerät Leerlauf Betrieb Leerlauf Betrieb
RAID Array 7000 Subsystem
(DS–SWXRE–HA) with:
2 – ac power controllers
(DS–BA35X–HE)
8 – 180 W shelf power supplies
(BA35X–HH)
24 – disk drives (2, 4, 9 GB)
6,1 N/A 48,4 48,4
RAID Array 7000 Subsystem
(DS–SWXRE–HA) with:
2 – ac power controllers
(DS–BA35X–HE)
8 – 180 W shelf power supplies
(BA35X–HH)
24 – disk drives (2, 4, 9 GB)
6,1 6,3 48,4 48,4
______________________________ Note ______________________________
Aktuelle Werter für spezielle Austüstungsstufen sind über die Digital Equipment
Vertretungen erhältlich. 1 Bel = 10 dBA.
__________________________________________________________________

SES Template Word 7 Blank Page Fix by Peter LaQuerre

Ultra SCSI RAID Enclosure 1–1
1
Introducing the UltraSCSI
RAID Enclosure
The StorageWorks™UltraSCSI (small computer system interface) RAID
(random array of independent disks) enclosure (DS–BA370-series), see
Figure 1–1, is the basic building block for DIGITAL™single-ended
UltraSCSI RAID subsystems.
Figure 1–1 DS–BA370 Series UltraSCSI Enclosure
CXO5797A
™Trademark of Digital Equipment Corporation

Introducing the Ultra SCSI RAID Enclosure
1–2 UltraSCSI RAID Enclosure
This enclosure cannot function until:
• It is installed in an UltraSCSI data center cabinet (DS–SW600-series)
• It is installed in an UltraSCSI departmental server (DS–
SWXRE-series).
• 3.5-inch StorageWorks building block (SBB) disk drives are installed
• A compatible array controller is installed and connected to a host
computer or adapter
• The enclosure and the subsystem are configured for UltraSCSI
operation
______________________Note _____________________
The “DS–” model number prefix defines new DIGITAL storage
products. In some cases, these numbers may be similar to an
existing product number. For example, the DS–BA35X–HE ac
power controller and the BA35X–HE ac power controller have
similar model numbers but are not interchangeable. These
products are not interchangeable. Installing incompatible
products in a StorageWorks subsystem could result in degraded
operation or non-compliance with country-specific
certifications.
________________________________________________
See Figure 1–2 for the DIGITAL-supported enclosure applications.