Mylex DAC960PG User manual

DAC960PG™and DAC960PJ™
PCI to Ultra SCSI
RAID Controllers
Installation Guide
Part Number 775012-02
08P4078
© Copyright 2000 Mylex Corporation.
All Rights Reserved.
All contents of this manual are copyrighted by Mylex
Corporation. The information contained herein is the
exclusive property of Mylex Corporation and shall not be
copied, transferred, photocopied, translated on paper, film,
electronic media, or computer-readable form; or otherwise
reproduced in any way, without the express written
permission of Mylex Corporation.

Greetings
Thank you for purchasing the Mylex DAC960PG™ or DAC960PJ™ controller. This
manual describes the installation of the Mylex DAC960PG/PJ controllers. Requests for
technical information about this and other Mylex Corporation products should be made to
your Mylex authorized reseller or Mylex sales representative.
Please Notice
IBM, Mylex, RAID EzAssist, Global Array Manager, GAM, DAC960PG, and DAC960PJ
are trademarks or registered trademarks of International Business Machines Corp. and its
subsidiaries. Microsoft, MS-DOS, and Windows are registered trademarks of the
Microsoft Corporation. Novell is a registered trademark of Novell corporation. LSI and
Symbios are registered trademarks of LSI Logic Corporation. Other names that are
trademarks may be used herein for the purpose of identifying the products or services of
their respective owners. Unless otherwise noted, companies, names, and data used in
examples herein are fictitious.
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Although reasonable efforts have been made to assure the accuracy of the information
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About This Manual
This installation guide covers hardware set-up and configuration procedures
necessary for the installation of Mylex DAC960PG and DAC960PJ PCI to
Ultra SCSI RAID controllers.
Chapter 1 describes the controllers, standard package contents, and user-
supplied items necessary for installation.
Chapter 2 describes steps to be performed prior to controller installation.
Chapter 3 describes installation of the controller.
Chapter 4 describes controller start-up and BIOS options.
Appendix A describes the Battery Backup Unit option.
Appendix B provides the hardware and environmental specifications.
Appendix C describes error messages and how to identify problems.
Appendix D provides regulatory information, certifications, and warnings.
Conventions
Throughout the manual, the following conventions are used to describe user
interaction with the product:
prompt This style of type indicates screen display messages
Enter Press the key labeled “Enter”(or “Delete,”etc.)
☛Note
A Note is supplementary information that can have an
effect on system performance
Caution
A Caution is a notification that a proscribed action has
the potential to adversely affect equipment operation,
system performance, or data integrity
WARNING
A Warning is a notification that a proscribed
action will definitely result in equipment damage,
data loss, or personal injury

Manual No. 775012 v
Contents
Chapter 1
Introduction ........................................................................................ 1-1
Product Description ........................................................................... 1-1
Controller Features and Functions ............................................. 1-2
Operating System Support ......................................................... 1-2
Standard Package Contents ............................................................. 1-3
Hardware .................................................................................... 1-3
Software ..................................................................................... 1-3
User-supplied Items .......................................................................... 1-4
Chapter 2
Preinstallation Planning ............................................................... 2-1
SCSI Termination .............................................................................. 2-2
SCSI Cabling ..................................................................................... 2-4
SCSI Drive Preparation ..................................................................... 2-5
Mixing Narrow and Wide SCSI Devices ............................................ 2-5
Chapter 3
Installation .......................................................................................... 3-1
Before You Begin .............................................................................. 3-1
Connectors and Jumpers .................................................................. 3-2
External SCSI Connectors ......................................................... 3-3
Safety Considerations ....................................................................... 3-4
Installing the Controller ...................................................................... 3-5
Chapter 4
Controller Start-up .......................................................................... 4-1
BIOS Options Sequence ................................................................... 4-1
Setting BIOS Options ................................................................ 4-2
BIOS Configuration Utility (RAID EzAssist) ....................................... 4-4
Operating System .............................................................................. 4-4
Operating System Device Drivers ..................................................... 4-4
Global Array Manager (GAM) Server ................................................ 4-4
Global Array Manager (GAM) Client .................................................. 4-5
In Case of Problems .......................................................................... 4-5

vi DAC960PG and DAC960PJ Installation
Appendix A
Battery Backup Unit Option ........................................................A-1
Product Description ...........................................................................A-1
Features .....................................................................................A-1
Installation .........................................................................................A-2
Operation ...........................................................................................A-5
Battery Conditioning Prior to Use ...............................................A-5
Set-up – Enabling the Write-Back Cache ...................................A-5
Battery Backup Capacity ............................................................A-5
Maintenance ......................................................................................A-6
Removing the Battery Backup Module .......................................A-6
Functional Description .......................................................................A-7
General Operational Description ................................................A-7
Status Indication .........................................................................A-7
Battery and Charge Circuit .........................................................A-8
Recycling the Battery .................................................................A-8
BBU Specifications ............................................................................A-9
Onboard Battery .........................................................................A-9
Battery Charge Life ....................................................................A-9
External Battery ..........................................................................A-9
Module Dimensions ....................................................................A-9
Environmental ............................................................................A-9
Appendix B
DAC960PG and DAC960PJ Specifications ...........................B-1
General Hardware Specifications ......................................................B-1
DAC960PG .................................................................................B-1
DAC960PJ ..................................................................................B-2
Physical and Environmental Specifications ......................................B-3
Appendix C
Error Messages ................................................................................ C-1
Start-up Error Messages ................................................................... C-1
Drive Check Error Messages ............................................................ C-1
Installation Abort ............................................................................... C-2
NVRAM Error ............................................................................ C-3
System Reboot or Power Down Messages ...................................... C-3
Appendix D
Enclosure Management ............................................................... D-1
Introduction ....................................................................................... D-1
SAF-TE ............................................................................................. D-1

Manual No. 775012 vii
Appendix E
Regulatory Information .................................................................E-1
Class B Compliance ..........................................................................E-1
Declaration of Conformity ..................................................................E-2
Declaration of Conformity ..................................................................E-3
Community of Europe ........................................................................E-4
Underwriters Laboratories Listing and Warning ................................E-5
Glossary .............................................................................................. G-1

viii DAC960PG and DAC960PJ Installation

Manual No. 775012 1-1
Chapter 1
Introduction
This chapter covers:
•Product description
•Standard package contents
•User supplied items
Figure 1-1. DAC960PG or DAC960PJ Disk Array Controller
Product Description
The Mylex DAC960PG™and DAC960PJ™controllers are 32-bit PCI to
Ultra SCSI RAID controllers designed for high performance file servers.
With up to 3 Ultra SCSI drive channels, and support for a cache memory
battery backup (full-length card models only), these controllers provide the
speed and functionality required by high demand server platforms.

Product Description
1-2 DAC960PG and DAC960PJ Installation
Controller Features and Functions
Features of the DAC960PG and DAC960PJ controllers include:
•Ultra SCSI drive channels that support RAID levels 0, 1, 3, 5, 0+1, 10,
30, and 50
•Single-Ended Wide Ultra SCSI (Fast 20) drive support
•High performance RISC processor and EDO ECC DRAM cache (4MB
to 128MB) for high speed, fault tolerant I/O transfers
•512KB, 8-bit flash EEPROM for BIOS and code supports future
enhancements through firmware upgrades
•Built-in configuration utilities in BIOS (with firmware 4.06 and above)
•A Battery Backup (BBU) option to protect data in cache during power
loss is available for full-length card models
Operating System Support
MS-DOS 5.x, 6.x and above are supported using drivers that reside in the
DAC960PG or DAC960PJ BIOS. Many other popular operating systems are
supported using software drivers in the Disk Array Controller Software Kit
that is included with the DAC960PG or DAC960PJ controller (see the
PCI Disk Array Controller Drivers Installation Guide and User Manual).

Introduction
Manual No. 775012 1-3
Standard Package Contents
The following items are supplied with the standard shipping package:
Hardware
•DAC960PG or DAC960PJ Disk Array Controller with documentation
•Battery Backup (BBU) port loopback terminator plug, or...
•Optional Battery Backup Unit (BBU)
☛Note
A loopback terminator plug must be installed on the
DAC960PG or DAC960PJ controller’s BBU
connector if the optional BBU is not present.
Software
•RAID EzAssist disk array controller configuration utility with
documentation on CD-ROM and a printed Quick Configuration Guide.
•Software Kit driver diskettes with documentation on CD-ROM and a
printed PCI Drivers Installation Guide.
•Optional Global Array Manager (GAM) Client and Server software
and documentation on CD-ROM
Figure 1-2. Standard Package Contents

User-supplied Items
1-4 DAC960PG and DAC960PJ Installation
User-supplied Items
The following user-supplied items are required to perform this installation:
•IBM-PC™compatible host system with an available PCI slot (PCI 2.1
compliant)
•Network operating system software (as required)
•SCSI cables to connect the controller and disk drives
•Static grounding strap or electrostatic discharge (ESD) safe work area
•Disk array enclosure (or equivalent) and SCSI disk drives

Manual No. 775012 2-1
Chapter 2
Preinstallation Planning
This chapter covers:
•SCSI termination
•SCSI cabling
•SCSI drive preparation
•Limitations on mixing Narrow and Wide SCSI drives
Mylex Disk Array Controllers are designed to work in a variety of SCSI
RAID application environments. Certain configuration steps need to be
performed prior to installing the controller into a RAID environment.

SCSI Termination
2-2 DAC960PG and DAC960PJ Installation
SCSI Termination
The DAC960PG and DAC960PJ are equipped with automatic SCSI
termination circuitry. If the controller is at the end of a SCSI bus, it
automatically enables on-board termination.
If all the SCSI devices on a channel are connected either to an internal
connector of a channel, or to an external connector of a channel, the end of
the SCSI bus farthest from the controller must have a terminator installed. In
this case, the controller automatically enables on-board termination. See
Figure 2-1 for examples of internal or external drive configurations.
If some SCSI devices are connected to the internal connector of a channel,
and some are connected to the external connector of the same channel, the
two ends of the SCSI bus farthest from the controller must each be
terminated. In this case, the controller automatically disables on-board
termination. See Figure 2-1 for an example of an internal/external drive
configuration.

Preinstallation Planning
Manual No. 775012 2-3
Figure 2-1. DAC960 Controller Termination Examples
☛Note
For this discussion, assume that the illustrated internal
and external connectors are both on the same channel.
It is better to terminate the ends of the SCSI bus itself
than it is to terminate the end devices on the bus. This
allows hot swap devices to be added or removed from
the SCSI bus without affecting termination.

SCSI Cabling
2-4 DAC960PG and DAC960PJ Installation
SCSI Cabling
Each Ultra SCSI channel supports up to 15 drives.
The total allowable SCSI bus lengths will be limited to the single-ended bus
lengths shown in Table 2-1.
*SCSI Trade Association terms.
** The SCSI ID reserved for the RAID controller is not included in this total.
†The maximum number of devices allowed on a Wide Ultra SCSI channel is 8
including the controller, unless bus extender technology is used.
Table 2-1. Supported SCSI Formats and Bus Lengths
SCSI Drive Type*
Bus Speed,
Max.(MB/Sec)
Bus Width,
(Bits)
Bus Length,
Max.(Meters)
Drives** per
Channel, Max.
SCSI-1 5 8 6 7
Fast SCSI 10 8 3 7
Fast Wide SCSI 20 16 315
Ultra SCSI 20 81.5 7
Ultra SCSI 20 8 3 3
Wide Ultra SCSI 40 16 —15†
Wide Ultra SCSI 40 16 1.5 7
Wide Ultra SCSI 40 16 3 3

Preinstallation Planning
Manual No. 775012 2-5
SCSI Drive Preparation
Prepare the drives for installation as follows:
•Remove any terminators attached to the drive or set any drive
termination jumpers to the disabled position.
•Set the SCSI addresses on the drives.
☛Note
Each drive on a channel must have a unique ID
chosen from 0 through 6 or 8 through 15. ID 7 cannot
be used as a drive ID because it is reserved for the
controller.
•Enable term power on the drives.
Refer to the drive manual for specific information about drive configuration
settings.
To get best performance from the controller, the SCSI drives should be
equally distributed across the SCSI channels, and the controller’s data
transfer rate should be set to the optimum rate for the drives being used.
Mixing Narrow and Wide SCSI Devices
Narrow and Wide SCSI devices must not be mixed on a single channel. If
mixing Narrow and Wide SCSI devices is desired, at least one channel must
be dedicated to Narrow SCSI, and at least one channel must be dedicated to
Wide SCSI.

Mixing Narrow and Wide SCSI Devices
2-6 DAC960PG and DAC960PJ Installation