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Chassis Guide
MAN-782-CH9
2/21/00
Megaplex II 9U
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Revision History 7/13/99 Initial release. 2/21/00 Revised information about default IDs of SCSI drives on page 4. ii Megaplex II Chassis Guide Information contained in this document is current at time of print and is subject to change without notice. All other product names are trademarks of their respective companies. MicroVAX, DEC and DSSI are trademarks of Digital Equipment Corporation. HP and Laserjet are registered trademarks of Hewlett Packard Company. UNIX is a trademark of AT&T. Intel
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1 General Information 1 General Description of Chassis 1 Front of Chassis 2 Back of Chassis 2 Specifications 3 Cooling Fans 6 Connectors on Back of Chassis 7 Drive Bays on Front of Chassis 8 2 9 Unpacking and Inspection 9 Drive Installation Rack-Mount Installation 3 . 15 Replacing a Power Supply Replacing a Fan Module Index 19 iii Preface .......... ................................ ................................ 17 ........................ ................................ 16 ...............
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Preface The buyer agrees if this product proves to be defective, that American Megatrends is obligated only to repair or replace this product at American Megatrends’ discretion according to the terms and conditions of the warranty registration card that accompanies this product. American Megatrends shall not be liable in tort or contract for any loss or damage, direct, incidental or consequential resulting from the use of this product. Please see the Warranty Registration Card shipped with this
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Continued Disclaimer This manual describes the operation of the American Megatrends Megaplex II 9U chassis. Although efforts have been made to assure the accuracy of the information contained here, American Megatrends expressly disclaims liability for any error in this information, and for damages, whether direct, indirect, special, exemplary, consequential or otherwise, that may result from such error, including but not limited to the loss of profits resulting from the use or misuse of the man
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The following text describes the WARNINGS, CAUTIONS, and NOTES used throughout this document. Each description is followed by an example. You should become familiar with these procedures and always observe standard safety practices. Warning Used to describe potential hazards to personnel. Follow directions carefully to avoid injury. Warning High voltage used in this equipment. To avoid injury or electrical shock, do not remove cover or reach into the unit when the power cord is connected. Cautio
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1 This manual provides general installation and maintenance information, including drive installation and power supply replacement for the Megaplex II 9U chassis. The material is arranged into the following sections. The Megaplex II rack-mount chassis supports up to eight 3.50" SCA (Single Connector Attachment) Low Voltage Differential (LVD) 16-bit SCSI drives. SCA drives provide simple installation via pluggable canisters. The SCA “no cable” design allows you to simply mount the drive into the
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Back of Chassis 2 Megaplex II Chassis Guide Front of Chassis
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This chassis is designed to be used in 19” rack configurations. This chassis has been designed to hold the Megaplex II motherboard configured with up to 4 GB of memory. The specifications of the chassis are: Dimensions Height : 14” (9U), Width : 19”, Depth : 26” Weight : Approximately 100 pounds. Controller I/O : Eight expansion slots in the rear of the chassis. Power Supplies This chassis supports three 450W power supplies arranged in N+1 redundant configuration. • A minimum of two power suppli
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Continued SCSI Drives The 9U chassis supports eight hot plug 3.5” 16-bit single-ended SCA LVD SCSI drives. • These drives are accessible from the front. • Each drive bay can take a full height SCSI LVD drive. • The eight drives are arranged on two separate back planes. Each back plane supports four drives. The default IDs of these drives are 0, 1, 2, and 4. • Access to the back planes is through two Wide SCSI cables. These cables can be connected, for example, to two channels on a RAID controlle
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Continued LEDs and Switches There are fan failure LEDs for all four fans. There is an IDE Activity LED , a power-on LED, a reset switch, and a power on switch. There are four CPU Activity LEDs . There is an Alarm Mute LED . There is an Alarm Mute switch. Temperature: Operating: 0º C to 40º C Storage: -20º to 75º C Humidity: 0% to 95% non-condensing Altitude : Operating: 0 feet to 10,000 feet Storage: 0 feet to 40,000 feet 5 Chapter 1 General Information Specifications,
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Cooling Fans There are three fans behind the top grill on the front of the Megaplex II chassis. There is one fan on the back of the chassis. 6 Megaplex II Chassis Guide
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Connectors on Back of Chassis The back of the chassis has connectors for the keyboard, mouse, serial ports (1 and 2), parallel port, and VGA port. The Megaplex II has two sets of keyboard and mouse ports. The primary keyboard and mouse ports are located on the front of the chassis, to the left of the floppy disk drive. The keyboard and mouse ports on the back of the Megaplex II are maintenance ports. 7 Chapter 1 General Information
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There are eight drive bays on the front of the chassis. 8 Megaplex II Chassis Guide Drive Bays on Front of Chassis
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2 Unpacking Unpack the Megaplex II chassis and visually inspect it for damage that might have occurred during shipment. Retain the shipping carton in case reshipment is necessary. Remove the top cover of the chassis and inspect for component damage. If any damage has occurred, notify American Megatrends immediately. See page ii of this manual for details. Each shipping carton should contain the following: • a Megaplex II chassis, • eight drive slides, • this manual, • three power cords, and • mo
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Before installing drives make sure that the chassis is powered down. Press both latches on the front cover to access the drive b ays. Unscrew the thumbscrew at the top of the mounting bracket where the new drive is to be installed. Flip the black latch at the bottom of the bracket down. Cont’d 10 Megaplex II Chassis Guide Step 3 Step 2 Step 1 Drive Installation
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, Continued Slide the bracket out, as shown Mount the disk drive on the front side of the mounting bracket. Cont’d 11 2 Installation Chapter Step 5 below: Step 4 Drive Installation
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, Continued Line up the holes in the brackets and the screw holes in the back of the drive. The back of the bracket is shown below. Insert the screws through the screw holes and the brackets and tighten all four screws. After the drive is securely attached to the bracket, slide the bracket into the slot in the drive bay. Tighten the thumbscrew and flip the black l atch up into a vertical position. 12 Megaplex II Chassis Guide Step 9 Step 8 Step 7 Step 6 Drive Installation
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Before the unit is installed into a rack the following items should be taken into consideration: • The maximum ambient temperature of this unit is 40 ° C. Internal temperatures of the rack assembly should be considered for safe operation. • Do not block power supply vents or otherwise restrict airflow when installing the unit into the rack. • Mechanical loading of the rack should be considered so that the rack remains stable and unlikely to tip. • Consideration to the overall loading of the bran
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Continued Position the outer rails in the rack, adjusting the claw brac kets and marking the intended position of the mounting holes both on the front and rear of the rack. Tighten the screws on the claw brackets. Bolt the front of the slides into place using 10 -32 x 1/2" pan head screws head screws are also provided for racks with countersunk holes. Bolt the rear of the slides to the rack side rails using four 10 -32 x 3/8" screws. A threaded bracket is provided in case the rack does not have
