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AcceleRAID
Installation Guide
AcceleRAID 200™
(
DAC
AcceleRAID 250™
(
DAC
PCI to Ultra2 SCSI
RAID Controllers
Part Number 775007-00
© Copyright 1998 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.
960
-0)
PTL
960
-1)
PTL
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Table of Contents
Related Manuals for Mylex DAC960PTL-0
Summary of Contents for Mylex DAC960PTL-0
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Page 1: Installation Guide
Part Number 775007-00 © Copyright 1998 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;... - Page 2 (even if Mylex Corporation has been advised of the possibility of such damages). Any questions or comments regarding this document or its contents should be addressed to Mylex Corporation at the address shown on the cover.
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Page 3: About This Manual
About This Manual This installation guide covers hardware set-up and configuration procedures necessary for the installation of Mylex AcceleRAID PCI to Ultra SCSI RAID controllers. Chapter 1 describes the controllers, standard package contents, and user- supplied items necessary for installation. -
Page 5: Table Of Contents
Contents Chapter 1 Introduction Product Description ................1-1 Controller Features and Functions ..........1-2 Operating System Support ..............1-3 Standard Package Contents ............. 1-3 Hardware..................1-3 Software ..................1-3 User-supplied Items ................1-4 Chapter 2 Preinstallation Planning SCSI Termination ................2-2 AcceleRAID 200 Termination ............. - Page 6 Appendix A AcceleRAID Specifications General Hardware Specifications ............A-1 AcceleRAID ................A-1 Environmental Specifications............. A-2 DAC960PTL Block Diagram .............. A-3 Appendix B AcceleRAID Error Messages Error Messages ................. B-1 Start-up Error Messages ............B-1 Drive Check Error Messages............B-1 Aborted Installation ................B-2 NVRAM Error ................
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Page 7: Introduction
O ready, half-length, PCI to Ultra2 SCSI RAID controllers designed to add RAID capability to SCSI channels that are resident on a system board. Mylex AcceleRAID controllers supply the necessary signals that enable SCSI Interrupt Steering Logic (SISL) hardware to capture and control the embedded SCSI channels(s) on the system board. -
Page 8: Controller Features And Functions
Product Description Controller Features and Functions AcceleRAID 200 Features: • SISL to implement RAID on system board resident SCSI channels • Support for Wide and Narrow Ultra2 SCSI LVD, and most other SCSI drive types Note Supported SCSI drive types include SCSI-1, Fast SCSI, Wide Fast SCSI, Ultra SCSI, Wide Ultra SCSI, and Wide Ultra2 SCSI. -
Page 9: Operating System Support
Introduction Operating System Support MS-DOS 5.x, 6.x, and above are supported using drivers that reside in the AcceleRAID BIOS. Many other popular operating systems are supported using software drivers in the Disk Array Controller Software Kit that is included with the AcceleRAID controller (see the Disk Array Controller Software Kit Installation Guide and User Manual –... -
Page 10: User-Supplied Items
User-supplied Items User-supplied Items The following user-supplied items are required to perform this installation: • Compatible host system with a PCI slot prewired for SCSI Interrupt Steering Logic control of the embedded SCSI channel(s) • Network operating system software (as required •... -
Page 11: Preinstallation Planning
Chapter 2 Preinstallation Planning This chapter describes: • SCSI termination • SCSI cabling • SCSI drive preparation There are some configuration steps that need to be performed prior to installing an AcceleRAID controller into the system. These steps include: checking the SCSI termination requirements, selecting the appropriate SCSI cabling, and preparing the SCSI drives for use in the array. -
Page 12: Scsi Termination
SCSI Termination SCSI Termination Correct termination is critical for the SCSI channels. Termination on the end of the cable connecting the disk drives (or other SCSI devices) is required. If an AcceleRAID 250 is installed, the controller’s termination is automatically set. AcceleRAID 200 Termination The system board contains the SCSI I/O chips and termination used by the AcceleRAID controller. - Page 13 Preinstallation Planning SCSI Termination on System Board Must be Enabled AcceleRAID Controller Internal Drive Configuration SCSI Termination on System Board Must be Enabled AcceleRAID Controller External Drive Configuration SCSI Termination on System Board Must be Disabled AcceleRAID Controller Internal – External Drive Configuration Figure 2-2.
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Page 14: Acceleraid 250 Termination
AcceleRAID 250 Termination AcceleRAID 250 Termination The AcceleRAID 250 is equipped with automatic SCSI termination circuitry. If the controller is at the end of the SCSI bus, it automatically enables on-board termination. If all the SCSI devices on the channel are connected either to the internal connector or to the external connector, the end of the SCSI bus farthest from the controller must have a terminator installed. - Page 15 Preinstallation Planning Internal Drive Auto Termination Configuration Enabled Auto Termination External Drive Enabled Configuration Auto Termination Internal – External Disabled Drive Configuration Figure 2-3. AcceleRAID 250 SCSI Termination Examples Manual No. 775007...
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Page 16: Scsi Cabling
SCSI Cabling SCSI Cabling An Ultra SCSI or an Ultra2 SCSI channel supports up to 15 drives. Caution Wide and narrow SCSI drives must not be installed together on any one channel, or AcceleRAID controller malfunction may occur. LVD Mode The controller supports Ultra2 SCSI with LVD. - Page 17 Preinstallation Planning Table 2-1. Supported SCSI Formats and Bus Lengths Max. Bus Length, Meters* Max. Device Speed, Width, Support Single-ended Low-Voltage MB/Sec, Bits (Including Differential SCSI Drive Type* Max. Controller) SCSI-1 Fast SCSI Fast Wide SCSI Ultra SCSI Ultra SCSI Wide Ultra SCSI 16 †...
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Page 18: Scsi Drive Preparation
SCSI Drive Preparation 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 must have a unique ID chosen from 0 through 6 or 8 through 15. -
Page 19: Installation
Chapter 3 Installation This chapter describes: • Before you begin • Connectors and Jumpers • Safety considerations • Installing the controller Before You Begin Installing an AcceleRAID PCI to Ultra2 SCSI RAID controller is no more difficult than installing any PCI adapter card. Follow these steps and then follow the installation procedures in this chapter. -
Page 20: Connectors And Jumpers
Connectors and Jumpers Connectors and Jumpers Caution Anti-static handling procedures are required. Leave the controller in its anti-static bag until it is time to plug the controller into the PCI slot. The use of a grounded wrist strap and other ESD protective measures are highly recommended. -
Page 21: Installing The Controller
Installation Installing the Controller Caution Anti-static handling procedures are required. Leave the controller in its anti-static bag until it is time to plug the controller into the PCI slot. The use of a grounded wrist strap and other ESD protective measures are highly recommended. - Page 22 Installing the Controller Caution Wide and narrow SCSI drives must not be installed together on any one channel, or AcceleRAID controller malfunction may occur. 6. Look to confirm that all drive channels are properly terminated. 7. Safety check the installation. 8.
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Page 23: Controller Start-Up
Chapter 4 Controller Start-up This chapter describes: • Procedural overview • Controller start-up • Additional steps to set up an array • What to check in case of problems This chapter describes the AcceleRAID 200 and AcceleRAID 250 controller start-up procedures and messages produced by the BIOS during start-up or re-boot. -
Page 24: Bios Start-Up Sequence
Controller Start-up Controller Start-up The controller start-up procedure is the first step in confirming that the controller is correctly installed and working properly. The start-up procedure should be performed prior to any software configuration. BIOS Start-up Sequence After physically installing the controller and connecting the cabling, do the following: 1. -
Page 25: Bios Configuration Utility
Mylex AcceleRAID controllers are capable of adding a BIOS-based configuration utility through select firmware upgrades. For more information about this feature, refer to the Technical Support page of the Mylex web site (www.mylex.com). To run the Mylex Disk Array Controller Configuration Utility after it is installed, select Configure MDAC and press Enter. - Page 26 Controller Start-up CD-ROM Boot Disable or Enable The default for this option is for the CD-ROM boot to be disabled (e.g., the system will boot from a hard drive. If a bootable CD is installed in the CD- ROM drive, the system can boot from the CD if this option is enabled. If the CD-ROM boot option is enabled, the CD-ROM will take priority over the disk drives under the following conditions: •...
- Page 27 Controller Start-up Enable 8GByte or 2GByte Drives This setting affects how the BIOS reads the disk drives. Drive geometries can be toggled between 8 GB and 2 GB. The default is 2 GB. The drive geometry must be set, and then the drive must be formatted (or reformatted). The default BIOS geometry of the controller is set to 2 GB.
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Page 28: Additional Steps To Set Up An Array
For details on how to install and run GAM, refer to the Global Array Manager Client Software Installation Guide and User Manual (P/N 771961). This manual can be obtained at no cost from the Mylex web site (www.mylex.com). What to Check in Case of Problems If problems are encountered during start-up, check the following: •... -
Page 29: Acceleraid Specifications
AcceleRAID Controller DAC960PTL Intel i960 RD® RISC 32-bit microprocessor, 66MHz Memory EDO ECC RAM, 60ns, 72-pin SIMM, n x 40 (Only Mylex supplied SIMMS) Minimum: 4 MB Optional: 8, 16, 32, 64, or 128 MB Cache Write: Selectable, Write Through or Write Back... -
Page 30: Environmental Specifications
Environmental Specifications Environmental Specifications Controller DAC960PTL Temperature Operating 0°C to +55°C (+32°F to 131°F) Storage -20°C to +70°C (-4°F to +158°F) Humidity Operating 10% to 90% relative humidity (non-condensing) Storage 10% to 90% relative humidity (non-condensing) Altitude Operating Up to 3,048m (10,000 ft ) Storage Up to 15,240m (50,000 ft) Form Factor... -
Page 31: Dac960Ptl Block Diagram
AcceleRAID Specifications DAC960PTL Block Diagram Figure A-1 shows the functional relationship between the Mylex AcceleRAID RAID Controller and the SCSI-capable system board. The SCSI chip interrupt line(s) are routed to a PCI bus slot specifically pre- configured to accept the controller. - Page 32 DAC960PTL Block Diagram AcceleRAID Installation Guide...
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Page 33: Acceleraid Error Messages
Appendix B AcceleRAID Error Messages Error Messages Start-up Error Messages The BIOS looks for any initialization message posted by the firmware during the start-up sequence. If a message is found, one of the following errors displays on screen and the installation process aborts. DAC960P n fatal error--memory test failed DAC960P n fatal error--command interface test failed DAC960P n hardware error--run diagnostics to pinpoint error... -
Page 34: Aborted Installation
With Firmware 4.x, if the BIOS displays a mismatch between the NVRAM and the COD, no drives will be installed. Normally this error will not be displayed. If it is, boot and run the on-board Mylex Disk Array AcceleRAID Installation Guide... -
Page 35: System Reboot Or Power Down
AcceleRAID Error Messages Configuration Utility (see Chapter 4). to recover from the error. For more information, refer to the Disk Array Controller Configuration Utilities (DACCF) Installation Guide and User Manual. System Reboot or Power Down Status messages may also be available from LED indicators on the front panel connected to the AcceleRAID. - Page 36 System Reboot or Power Down AcceleRAID Installation Guide...
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Page 37: Regulatory Information
Appendix C Regulatory Information Class B Compliance THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS: 1. THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND 2. THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. -
Page 38: Declaration Of Conformity
Manufacturer’s Address: 34551 Ardenwood Blvd. Fremont, CA 94555-3607 Declares that the product: Product Name: AcceleRAID Ultra2 SCSI RAID Controller Model Number(s): DAC960PTL-0 and DAC960PTL-1 Year of Manufacture: 1998 Conforms to the following Product Specification(s): EMC: EN 50081-1:1992/EN 55022:1992 Class B... -
Page 39: Community Of Europe
Regulatory Information Community of Europe CE mark is rated for the AcceleRAID as follows: CISPR 22 Radiated Emission EN55022, EN5082-1 Generic immunity standard for the following: IEC 801-2 ESD, IEC 801-3 Radiated, and IEC 801-4 EFT/Burst Warning! This is a Class B product. In a residential environment this product may cause radio interference, in which case the user may be required to take adequate measures. - Page 40 AcceleRAID Installation Guide...
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Page 41: Glossary
Glossary Cache Controller memory used to speed up data transfer to and from a disk. Cache Flush Refers to an operation where all unwritten blocks in a Write-Back Cache are written to the target disk. This operation is necessary before powering down the system. - Page 42 Disk Failure Detection The controller automatically detects SCSI disk failures. A monitoring process running on the controller checks, among other things, elapsed time on all commands issued to disks. A time-out causes the disk to be “reset” and the command to be retried. If the command times out again, the disk could be “killed”...
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Page 43: Logical Drive States
Glossary Hot Replacement of Disks (Hot Swap) The design of the DAC960 Series controllers allows for the replacement of failed hard disk drives without interruption of system service. In the event of a SCSI drive failure on a properly configured system (where the data redundancy features of the controller are used), system service continues without interruption. - Page 44 Offline: A Logical Drive is in an “offline” state if... No data can be read from it or written to it. System commands issued to offline logical drives are returned with an error status: no operations can be performed on offline logical drives. A logical drive can be “offline”...
- Page 45 Glossary Peripheral Component Interconnect – This is a high-performance, backplane interface, expansion slot architecture that is found on PCs, Macintoshes, and UNIX workstations. PCI is a standardized architecture that provides a high- speed data path between peripherals and the CPU. PCI cards are portable across hardware platforms with the help of various software drivers.
- Page 46 Level 0+1. Combines RAID 0 striping and RAID 1 mirroring. This level provides redundancy through mirroring. (Mylex RAID 6) JBOD. Sometimes referred to as “Just a Bunch of Drives.” Each drive is operated independently like a normal disk controller, or drives may be spanned and seen as a single drive.
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Page 47: Scsi Drive States
Glossary SCSI SCSI is an acronym for “Small Computer Systems Interface,” although it is often used in large systems. The SCSI interface supports disk drives, tape drives, and CDROM drives. Narrow SCSI supports up to 7 devices on a channel, and Wide SCSI, Ultra SCSI, and Ultra2 SCSI support up to 15 devices on a channel. -
Page 48: Segment Size
Under DACCF, the segment size (also known as “cache line size”) should be based on the stripe size you selected. The default segment size for Mylex DAC960 controllers is 8K. Session Refers to the period of time between any two consecutive system shutdowns. - Page 49 Glossary SISL See “SCSI Interrupt Steering Logic.” Standard Disk Drive This term refers to a hard disk drive with SCSI, IDE, or other interface, that is attached to the host system through a standard disk controller. Standby Replacement of Disks (“Hot Spare”) The “Standby Replacement”...
- Page 50 automatically replace the failed drive and the data will be rebuilt. The system administrator can disconnect and remove the bad disk and replace it with a new disk. The administrator can then make this new disk a standby. The standby replacement table has a limit of 8 automatic replacements in any session (from power-on/reset to the next power-off/reset).
- Page 51 Glossary Striping Refers to the storing of a sequential block of incoming data across multiple SCSI drives in a group. For example, if there are 3 SCSI drives in a group, the data will be separated into blocks and block 1 of the data will be stored on SCSI drive 1, block 2 on SCSI drive 2, block 3 on SCSI drive 3, block 4 on SCSI drive 1, block 5 on SCSI drive 2 and so on.
- Page 52 Write-Back Cache Refers to a caching strategy whereby write operations result in a completion signal being sent to the host operating system as soon as the cache (not the disk drive) receives the data to be written. The target SCSI drive will receive the data at a more appropriate time, in order to increase controller performance.
- Page 53 _____________________________________________________________________ _____________________________________________________________________ This DPR form has been included with your Mylex product as a convenience to both you and our Technical Services Department. If filled out completely, this will greatly assist Mylex personnel in quickly resolving any technical problems or questions you may have. Use the Mylex fax number (510) 745-7715 to transmit this form to the Technical Services Department, or mail to Mylex Corporation, Technical Services Department, 34551 Ardenwood Blvd., Fremont, CA 94555-3607...
- Page 55 MYLEX will repair, or at MYLEX’s sole option, replace the PRODUCT. If the PRODUCT fails to operate at any time within seven days after the date of its original purchase, it will be replaced by MYLEX. Such repair or replace- ment will be your sole remedy against MYLEX, and MYLEX’s only liability to you, for any failure or malfunction...
- Page 56 PRODUCT. 3. MYLEX will not be responsible for any loss or damage to property shipped with the RMA PRODUCT not origi- nally sold by MYLEX (e.g., coprocessor chips, peripheral boards, memory modules, enclosures, power supplies, or any other accessories or attached items).