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Chapter 2

Preinstallation Planning

This chapter describes:

• SCSI termination

• SCSI cabling

• SCSI drive preparation

• Limitations on mixing various SCSI drive types

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.

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Summary of Contents for eXtremeRAID 1100

Page 1: ...eXtremeRAID Installation Guide eXtremeRAID 1100 PCI to Ultra2 SCSI RAID Controller P N 775013 01 ...

Page 2: ......

Page 3: ...ents 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 ...

Page 4: ...Any questions or comments regarding this document or its contents should be addressed to Mylex Corporation at the address shown on the back cover The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law MYLEX CORPORATION PROVIDES THIS PUBLICATION AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT L...

Page 5: ... to be performed prior to controller installation Chapter 3 describes the physical installation of the DAC1164P controller Chapter 4 describes controller start up and the BIOS resident utilities Appendix A describes the memory and battery backup module Appendix B provides hardware and environmental specifications Appendix C describes error messages and problem correction Appendix D describes the P...

Page 6: ...r Press the key labeled Enter or Delete etc Note Supplementary information that can have an effect on system performance m Caution Notification that a proscribed action has the potential to adversely affect equipment operation system performance or data integrity WARNING Notification that a proscribed action will definitely result in equipment damage data loss or personal injury ...

Page 7: ...ixing Narrow and Wide SCSI Drives 2 5 Mixing LVD with Single ended Drives 2 5 Chapter 3 Installation Before You Begin 3 1 Connectors Jumper and LEDs 3 2 External SCSI Connectors 3 3 Safety Considerations 3 4 Installing the Controller 3 5 Chapter 4 Controller Start up Procedural Overview 4 1 Controller Start up 4 2 BIOS Options Sequence 4 2 Setting BIOS Options 4 3 Using RAID EzAssist 4 5 Operating...

Page 8: ...atus Indication A 3 Battery and Charge Circuit A 5 Recycling the Battery A 5 DMM1100 Specifications A 6 On board Battery A 6 Battery Charge Life A 6 Cache Memory A 6 Module Dimensions A 6 Environmental A 6 Warranty A 6 Appendix B DAC1164P Specifications General Hardware Specifications B 1 eXtremeRAID 1164 B 1 Environmental Specifications B 2 Appendix C DAC1164P Error Messages Error Messages C 1 St...

Page 9: ...D 3 Appendix E Enclosure Management Introduction E 1 SAF TE E 1 StorageWorks E 2 Appendix F Regulatory Information FCC Class B Compliance F 1 FCC Declaration of Conformity F 2 CE Declaration of Conformity F 3 CE Community of Europe F 4 Underwriters Laboratories Statement and Warning F 5 Glossary ...

Page 10: ...viii eXtremeRAID Installation Guide ...

Page 11: ...e 1 1 DAC1164P Disk Array Controller Product Description The Mylex eXtremeRAID 1100 DAC1164P controller is a PCI to Ultra2 SCSI RAID controller with 64 bit PCI capability With up to three Ultra2 SCSI channels and a cache memory battery backup this controller provides the speed and functionality required by high demand server platforms ...

Page 12: ...e Built in configuration utilities in BIOS Supports controller redundancy using a shared SCSI bus in a clustering configuration PCI Hotplug capability allows the DAC1164P to be swapped with a replacement without powering down the system m Caution Be sure the motherboard you are using supports PCI Hotplug before attempting to use this feature or serious damage to the controller and or the motherboa...

Page 13: ...backup pre installed Software RAID EzAssist disk array controller configuration utility with documentation on CD ROM Software Driver Kit with documentation on CD ROM Global Array Manager GAM with documentation on CD ROM Figure 1 2 Standard Package Contents DAC1164P PCI to Ultra2 SCSI Controller Hardware Quick Install Guide Diskette with Drivers CD ROM with Additional Hardware and Software Manuals ...

Page 14: ...red to perform this installation IBM PC compatible host system with PCI slot PCI 2 1 compliant Network operating system software as required SCSI cables to connect the controller and disk arrays Static grounding strap or electrostatic discharge ESD safe work area Disk array enclosure or equivalent with SCSI disk drives ...

Page 15: ...SI cabling SCSI drive preparation Limitations on mixing various SCSI drive types 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 ...

Page 16: ...on is required and can set the on board termination type as needed 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 DAC1164P controller must have a terminator installed In this case the controller automatically enables on board termination See Figure 2 1 for examples of...

Page 17: ...mination Examples Note When connecting SCSI devices 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 ...

Page 18: ...ingle ended operation mode The SCSI bus lengths will then be limited to the single ended bus lengths shown in Table 2 1 The Maximum number of devices allowed on a Wide Ultra SCSI bus is 8 unless bus extender technology is used This length can be extended to 25 meters if there are only 2 devices e g the controller and one drive on the bus in a point to point configuration Table 2 1 Supported SCSI F...

Page 19: ...e the drives equally across the SCSI channels and set the controller s data transfer rate to the optimum for the drives being used Mixing Narrow and Wide SCSI Drives Do not mix narrow and wide SCSI devices on a single channel If mixing of narrow and wide SCSI devices is desired dedicate at least one channel to narrow SCSI and at least one channel wide SCSI Mixing LVD with Single ended Drives If LV...

Page 20: ...2 6 eXtremeRAID Installation Guide ...

Page 21: ... before starting the installation Refer to the instructions provided in your system documentation Do not disconnect cables or power cords while system power is on 2 Read all of the instructions in this chapter completely before proceed ing Follow the Notes Cautions and Warnings described in this manual and marked on the equipment 3 Follow electrostatic discharge ESD safe procedures Use a grounded ...

Page 22: ... are active indicators while the controller is running The LEDs indicate termination type and status SCSI activity cache status diagnostic status and host activity The LED locations and meanings are shown in Figure 3 1 Figure 3 1 DAC1164P Controller with Jumpers LEDs and Connectors Table 3 1 Jumper Descriptions Jumper Description Default Setting JP1 factory use only JP2 pins 1 2 for Arm Proc pins ...

Page 23: ...have the VHDCI offset connector at one end and a High Density 68 pin connector at the other end Such cables with the correct offset hood and connector assembly are required if cables are to be connected to external channels 0 and 2 at one time Figure 3 2 DAC1164P Controller External Connectors Figure 3 3 Offset Hood Cable Assembly Alignment Where xx is the cable length in meters ...

Page 24: ...cedures 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 WARNING Disconnect the system from the electrical wall outlet before opening the system cabinet Working with the system covers off and power applied to the system can result in shock and...

Page 25: ...t s access port usually at the back of the cabinet Save the retaining screw 6 Plug the controller firmly into the PCI slot so that the controller s external connectors can be accessed through the access port Use the retaining screw to secure the controller by its mounting bracket Note Although the DAC1164P controller will operate very well in a 32 bit PCI slot a 64 bit PCI slot if available is rec...

Page 26: ...Installing the Controller 3 6 eXtremeRAID Installation Guide ...

Page 27: ...d in this chapter include Setting BIOS options RAID EzAssist theBIOS configuration utility see the RAID EzAssist Configuration Utility User Reference Guide P N 775029 for configuration instructions and default controller parameter definitions Loading the operating system and operating system drivers see the Disk Array Controller Software Kit Installation Guide and User Manual P N 771929 for instal...

Page 28: ...is started up BIOS Options Sequence After physically installing the controller and connecting the cabling do the following steps if you need to set or modify the BIOS options see Setting BIOS Options on page 4 3 for details 1 Power on the computer 2 Watch the messages on the screen for the following prompt to be displayed Press ALT M for BIOS options 3 Press Alt M to get into the BIOS Options menu...

Page 29: ...figured on the controller When BIOS Disable or Enable is selected the following message will be displayed Pressing any key will restart the system 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 even if there is a bootable CD installed If the CD ROM boot option is enabled and if a bootable CD is installed in...

Page 30: ...y of the controller is set to 2 GB This means that the BIOS can only access the first 2 GB of any drive that has been configured on the controller This is adequate in most applications since BIOS is only used to boot the operating system However it does mean the operating system must be installed in the first 2 GB of the capacity of the configured drive If this is not adequate the BIOS geometry ca...

Page 31: ...rmatted to the size of the smallest disk controlled by the eXtremeRAID board A maximum of 7 drives can be configured into an array using Automatic Configuration Any additional drives will become hot spares The drives with the largest capacity if mixed drive sizes are used will be the drives selected to become hot spares Note If you want to do anything other than an automatic configuration refer to...

Page 32: ...ide for details 3 Watch the messages on the screen for the following prompt to be displayed Press ALT R for RAID Configuration options 4 Press Alt R to get into RAID EzAssist the configuration utility Note For more detailed information on how to run RAID EzAssist refer to the RAID EzAssist Configuration Utility User Reference Guide P N 775029 which is included on the distribution CD ROM ...

Page 33: ...ng GAM GAM can also be used from the server or a system client to monitor status and verify data integrity of disks connected to the controller while the system and disks are running 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 downloaded at no cost from the Mylex web site www mylex com ...

Page 34: ...In Case of Problems 4 8 eXtremeRAID Installation Guide ...

Page 35: ...ttery backup portion of this module monitors the write back cache on the DAC1164P controller and provides power to the cache if it contains data not yet written to the drives when power is lost The controller with the DMM1100 installed together occupy only one PCI slot on the host backplane Features Some of the features of the DMM1100 include Gas gauge circuit for battery charge monitoring Quick c...

Page 36: ...rite through mode switch is accessed using RAID EzAssist the BIOS Configuration Utility or in GAM Refer to the RAID EzAssist Configuration Utility User Reference Guide or the Global Array Manager Client Software Installation Guide and User Manual for instructions on how to examine and change the mode switch Battery Backup Capacity The battery backup s capacity varies with the cache memory capacity...

Page 37: ... the battery backup circuitry does nothing If the cache contains data during a power failure the DMM1100 s battery backup circuitry will maintain cache data integrity until the power is restored When power is restored and the system finishes the bootstrap process the cache contents will be written to the disk array The cache contents will then be flushed from the cache Status Indication The status...

Page 38: ... meter on the left will indicate the maximum time in hours approximately 48 hours for a 64MB cache or 72 hours for a 32MB or 16MB cache that the battery can be expected to maintain cache data integrity Note When the charge level is 100 the current number of hours and maximum number of hours printed out below the left dial will be equal ...

Page 39: ...mes with the DMM1100 has the logo of the Rechargeable Battery Recycling Corporation RBRC stamped on it The logo means that recycling fees have been prepaid on this battery pack m Caution Do not dispose of a rechargeable battery with regular trash in a landfill Rechargeable batteries contain toxic chemicals and metals that are harmful to the environment Improperly disposing of rechargeable batterie...

Page 40: ... X 2 01 W X 0 33 H Battery Charge Life Approximately 48 hours with 64MB SDRAM Approximately 72 hours with 32MB or 16MB SDRAM Cache Memory 16MB 32MB or 64MB SDRAM Module Dimensions Length 3 625 inches Width 4 0 inches Environmental Temperature Operating 0ºC to 50ºC 32ºF to 122ºF Storage 40ºC to 60ºC 40ºF to 140ºF Humidity Operating 45 to 85 relative humidity non condensing Non operating 45 to 85 re...

Page 41: ...ry SDRAM 16MB 32MB or 64MB installed on a module containing a battery with backup circuitry for power fail protection of data Cache Write Selectable Write Through or Write Back Error Protection Parity Firmware ROM Type Flash EEPROM 1MB x 8 PCI 64 bit or 32 bit PCI at 33MHz 3 3v or 5v SCSI Supports 3 Symbios Ultra2 LVD SYM53C895 PCI to Ultra2 SCSII I O Processors ...

Page 42: ...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 Length 12 280 inches Width 4 750 inches Maximum Component Height 0 105 inches on the solder side of the board 0 570 inches on the component side of the board Maximum Power Consumption at 5 25v at 4 75v 1 90A 9 98W with 64MBytes SDRAM 1 85A 8 79W wit...

Page 43: ...n but it doesn t match the SCSI drives currently installed one or more of the following messages display Unidentified device found at channel x Device identified for chn x tgt y found at chn x tgt y SCSI device at chn x tgt y not responding If any of the above messages are displayed the firmware will not proceed any further in the initialization process except to find other mismatches Then the BIO...

Page 44: ...stalled The BIOS repeats the same process for additional RAID controllers present in the system Then it proceeds to boot if possible from the first system drive on the first controller Aborted Installation With Firmware 5 x the installation aborted message is displayed when the BIOS finds that the configuration of the disk drives as stored in the NVRAM and configuration on disk is different from w...

Page 45: ...he controller The Cache Dirty indicator is especially important when preparing to power down the system The DAC1164P controller is a caching controller with 16MB 32MB or 64MB of cache memory data may still be in the cache waiting to be written to the disk drives when the system reports that a write command was completed It is very important to make sure that all data is written to the disk before ...

Page 46: ...System Reboot or Power Down C 4 eXtremeRAID Installation Guide ...

Page 47: ...is point the card can be replaced At this time Mylex only supports Hot Replacement of PCI Hot Plug cards Future releases are planned to support Hot Upgrade or Hot Expansion adding a card Implementation Aside from the general terms previously mentioned PCI Hot Plug implementation is specific to the host hardware platform and the operating system running on it Refer to your host system s documentati...

Page 48: ...sys system ncmcon nlm This command loads the Novell Configuration Manager Console which then loads odineb nlm These commands can also be executed at the server console prompt Note This command is commented out If you want the Configuration Manager Console to be loaded every time the system is started remove the pound sign at the beginning of the line Perform the following steps 1 Install NetWare 5...

Page 49: ...ws NT Issues Mylex Software Kit 2 1 or greater is required to support your system vendor s PCI Hot Plug utility The macdisk sys driver should not be loaded with a Mylex PCI Hot Plug board if macdisk sys is loaded the system will hang upon shutdown When you install a Mylex card as a boot device and a Mylex Driver has been installed prior to the installation of the Windows NT OS NT will not recogniz...

Page 50: ...Implementation D 4 eXtremeRAID Installation Guide ...

Page 51: ...s compatible with standard SCSI buses and cabling The SAF TE interface standard s objective is to provide a non proprietary means of allowing third party disks and controllers to be automatically integrated with peripheral enclosures that support Status Signals LEDs audible alarms LCDs etc Hot swapping of drives Monitoring of fans power supplies and enclosure temperature SCSI is the underlying tra...

Page 52: ...ID Installation Guide StorageWorks The eXtremeRAID 1100 supports Compaq StorageWorks enclosure management Refer to the documentation supplied with your StorageWorks enclosure for details on how to take advantage of this feature ...

Page 53: ...erference to radio communications However there is not guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television equipment reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures 1 Reorient or relocate the re...

Page 54: ...xx Year of Manufacture 1998 Conforms to the following Product Specification s FCC CFR 47 Part 15 Subpart B Section 15 107 e and Section 15 109 g Class B Digital Device tested per ANSI C63 4 1992 procedures Supplementary Information 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 devi...

Page 55: ...es that the product Trade Name High Performance Caching RAID Controller Model Number DAC1164P 3E Fab 550137 A Rev A conforms to the following specifications Standards EN 50081 1 1992 EMI EN 55022 Class B Radiated Class B Conducted EN 50082 1 1992 Immunity EN 61000 4 2 1995 Electrostatic Discharge EN 61000 4 3 1996 Radiated Susceptibility EN 61000 4 4 1995 Electrical Fast Transients Burst ...

Page 56: ...adio interference in which case the user may be required to take adequate measures Achtung Dieses ist ein Gerät der Funkstörgrenzwertklasse B In Wohnbereichen können bei Betrieb dieses Gerätes Rundfunkstörungen aufreten in welchen Fällen der Benutzer für entsprechende Gegenmaßnahmen verantwortlich ist Avertissement Cet appareil est un appareil de Classe B Dans un environnement résidentiel cet appa...

Page 57: ... nonvolatile RAM NVRAM chip that uses a sealed lithium battery crystal module Replace the module only with the same or equivalent type recommended by the manufacturer Dispose of the used battery crystal module according to the manufacturer s instructions Never incinerate a battery as it could explode and cause serious injury ...

Page 58: ...F 6 eXtremeRAID Installation Guide ...

Page 59: ...for Mylex eXtremeRAID controllers is 8K Channel Refers to one SCSI bus on a disk array controller Each disk array controller provides at least one channel Consistency Check Refers to a process where the integrity of redundant data is verified For example a consistency check of a mirrored drive will make sure that the data on both drives of the mirrored pair is exactly the same For RAID Level 3 or ...

Page 60: ... reported to the system Note The soft error counter is incremented in this case The soft error count can be viewed using the Mylex disk array configuration utilities When a disk reports a media error during a write the controller issues a reassign command to the disk and writes the data out to a new location on the disk Drive Groups or Drive Packs A group of individual disk drives preferably ident...

Page 61: ...e data on the new drive all without interrupting system operations Once the rebuild is complete the controller will be brought back into a fault tolerant state Logical Drive States The state of a logical system drive can be either ONLINE CRITICAL or OFFLINE Notice that the same term online is used for both physical and logical drives Online A Logical Drive is in an online state if All of its parti...

Page 62: ...r one of two situations described below It is configured with a redundant RAID level 1 3 5 or 0 1 and two or more of its SCSI drives are not online or It is configured at RAID level 0 JBOD or in a spanned set and one or more of its SCSI drives are not online Logical Drives See System Drives Mirroring Refers to the 100 percent duplication of data on one disk drive to another disk drive Each disk wi...

Page 63: ...D 1 RAID 3 RAID 5 and two special RAID levels RAID 0 1 and JBOD Level 0 Block striping across multiple drives is provided yielding higher performance than is possible with individual drives This level does not provide any redundancy Level 1 Drives are paired and mirrored All data is 100 percent duplicated on a drive of equivalent size Level 3 Data is striped across several physical drives Maintain...

Page 64: ... have been replaced by others through standby replacement Rotated XOR Redundancy This term also known as parity refers to a method of providing complete data redundancy while requiring only a fraction of the storage capacity of mirroring In a system configured under RAID 3 or RAID 5 which require at least three SCSI drives all data and parity blocks are divided between the drives in such a way tha...

Page 65: ...if it Is powered on and Is available to be configured during the current session but remains unconfigured Online A SCSI disk drive is in an online state if it Is powered on and Has been defined as a member of a drive group and Is operating properly Standby A SCSI disk drive is in a standby state if it Is powered on and Is able to operate properly and Was NOT defined as part of any drive group Dead...

Page 66: ...rive 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 or Hot Spare is one of the most important features the controller provides to achieve automatic non stop service with a high degree of fault tolerance The rebuild operation will be carried out by the controller automatically whe...

Page 67: ...DAC1164 controllers To use the standby rebuild feature you should always maintain a standby SCSI disk in your system When a disk fails the standby disk will 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 Stripe Order The order i...

Page 68: ...ID of a device attached to a DAC1164 controller Each SCSI channel can have up to 15 attached SCSI devices target ID from 0 to 6 and 8 to 15 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 ...

Page 69: ...__________________________ Drives Fax Number _________________________________ Disk Non Disk System Information Motherboard ____________ CPU Speed BIOS Ver Video Adapter ___________ Network Card MB Memory Operating Sys ___________ Other Disk Ctrl Other Cards Pack Configuration System Drive Configuration Indicate in matrix below 1 2 for member of pack 1 pack 2 respective ly Indicate S T C or O for ...

Page 70: ......

Page 71: ...ranty period will extend through the last day of the month indicated This warranty will not apply to and MYLEX provides no warranty for any BIOS software ROM based firmware or any other PRODUCT developed or manufactured by any third party whether included with this PRODUCT or not Such warranty or warranties as are provided by third parties to the extent permitted thereby shall be made available an...

Page 72: ...ped or mailed at the shipper s risk freight prepaid to the address below Mylex Corporation 34551 Ardenwood Blvd Fremont California U S A 94555 3607 Mylex will pay for return freight via such carrier as MYLEX shall deem appropriate Technical Support Technical support to assist you in resolving problems with MYLEX products is available through MYLEX s Tech nical Support Department In the U S A the T...

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Page 74: ...51 Ardenwood Blvd Fremont CA 94555 3607 USA Tel 510 796 6100 Sales Fax 510 745 8016 www mylex com European Sales P O Box 513 Great Missenden Bucks HP 16 OPG United Kingdom Tel 44 1344 302200 Fax 44 1344 301100 www mylex com ...

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