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Medalist Pro Family
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Medalist Pro 6450 (ST36450A)
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Medalist Pro 6451 (ST36451A)
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ATA Interface Drives
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Medalist Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Medalist Pro 6450 (ST36450A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Medalist Pro 6451 (ST36451A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ATA Interface Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual . . .
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© 1997 Seagate Technology, Inc. All rights reserved Publication Number: 32652-001, Rev. B, June 1997 Seagate, Seagate Technology, the Seagate logo, Medalist and the Medalist logo are registered trademarks of Seagate Technology, Inc. Other product names are trademarks or registered trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission from Seagate T
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Medalist Pro 6450/6451 Product Manual, Rev. B iii Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Quick specification chart . . . . . . . . . . . . . . . . . . . . . . 3 1.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . 5 1.1.1 Standard configuration . . . . . . . . .
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iv Medalist Pro 6450/6451 Product Manual, Rev. B 1.19 FCC verification . . . . . . . . . . . . . . . . . . . . . . 14 2.0 Configuring and mounting the drive . . . . . . . . . . . . . 17 2.1 Handling and static-discharge precautions . . . . . . . . . 17 2.2 I/O cable and connector. . . . . . . . . . . . . . . . . . . 18 2.3 Power connector . . . . . . . . . . . . . . . . . . . . . . . 18 2.4 Options jumper block
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Medalist Pro 6450/6451 Product Manual, Rev. B v Figures Figure 1. Typical startup current profile . . . . . . . . . . . . . . . . 8 Figure 2. ATA interface connector . . . . . . . . . . . . . . . . . 18 Figure 3. Connectors . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 4. Configuration settings . . . . . . . . . . . . . . . . . . . 20 Figure 5. Connecting cable-selected drives . . . . . . . . . . . .
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vi Medalist Pro 6450/6451 Product Manual, Rev. B
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Medalist Pro 6450/6451 Product Manual, Rev. B 1 Introduction This manual describes the functional, mechanical and interface specifi- ® cations for the Medalist Pro 6450 and the Medalist Pro 6451 hard disc drives. The drives are referred to throughout this manual by their model numbers, ST36450A for the Medalist Pro 6450 and ST36451A for the Medalist Pro 6451. ® Seagate desktop products take a step into the future with the ST36450A and ST36451A. These drives feature MR heads and PRML recordin
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2 Medalist Pro 6450/6451 Product Manual, Rev. B The ATA commands with specific applications for these drives and the Seagate-unique commands the drives use are discussed in Section 3.0 on page 25. A complete list of the commands the drives support are found in the table on page 27. The following is a summary of the drives’ features: Capacity • 6.4 Gbytes formatted • LBA translation support • Available software driver that surpasses the 528-Mbyte barrier and 4,096 cylinder barrier limited by som
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Medalist Pro 6450/6451 Product Manual, Rev. B 3 Quick specification chart The following table serves as a quick reference for the drives’ perform- ance specifications. These and other specifications are discussed in “Specifications” on page 5. ST36450A ST36451A Drive specification 9 Guaranteed capacity (Gbytes) (x10 bytes) 6.4 6.4 Guaranteed sectors 12,594,960 12,594,960 Bytes per sector 512 512 Sectors per track 63 63 Logical read/write heads 15 15 Logical cylinders 13,328 13,328 Physical cylin
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4 Medalist Pro 6450/6451 Product Manual, Rev. B continued from previous page ST36450A ST36451A Drive specification Height (inches max) 1.027 1.027 Width (inches max) 4.023 4.023 Depth (inches max) 5.787 5.787 Typical weight (lb) 1.5 1.5 Spinup current (max) 3.0A 3.0A Seek power (typical) 9.8W 9.8W Read/Write power and current (typical) 7.8W 7.8W Idle total power (typical) 7.8W 7.8W Standby/Sleep total power (typical) 2.0W 2.0W Voltage tolerance (including noise): +5V ± 5% ± 5% Voltage tolerance
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Medalist Pro 6450/6451 Product Manual, Rev. B 5 1.0 Specifications 1.1 Formatted capacity Medalist Pro drives are low-level formatted at the factory. You cannot low-level format them. These drives support cylinder-head-sector (CHS) and logical-block ad- dressing (LBA) translation modes. You can use the Identify drive (EC ) H command to verify the address modes the drives support, the number of cylinders, sectors per track, total number of sectors, heads and other parame- ters. The Identify drive
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6 Medalist Pro 6450/6451 Product Manual, Rev. B 1.2 Physical organization ST36450A ST36451A Read/write heads 10 10 Discs 5 5 1.3 Functional specifications ST36450A ST36451A Interface ATA-2 Ultra ATA Recording method PRML (8/9 ) PRML (8/9) External data burst transfer rate: 16.6 16.6 PIO mode 4 (Mbytes per sec) 16.6 16.6 DMA mode 2 (Mbytes per sec) –– 33.3 Synchronous DMA mode 2 Internal data-transfer rate 63 to 116 63 to 116 (Mbits per sec) Spindle speed (RPM) 5,397 ± 0.5% 5,397 ± 0.5% Cache siz
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Medalist Pro 6450/6451 Product Manual, Rev. B 7 1.4 Physical dimensions The mounting dimensions are shown in Figure 6 on page 23. Height, max 1.027 inch (26.09 mm) Width, max 4.025 inches (102.2 mm) Depth, max 5.787 inches (146.99 mm) Weight 1.5 lb (0.68 Kg) 1.5 Seek time Seek value is the interval between the time the actuator begins to move and the time the head has settled over the target track. Seek time is a true statistical average of at least 10,000 measurements of seek time. All measurem
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8 Medalist Pro 6450/6451 Product Manual, Rev. B from the start of a read until the buffer segment is full or until another command is received. Write immediate. The drive uses the write segment to store write commands and data. After the drive receives all of the data for the command, it issues a write complete. Then, the drive writes the data to the disc. Write merging. The drive accepts contiguous write commands and executes them as one command. 1.7 Start and stop times Within 20 seconds after
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Medalist Pro 6450/6451 Product Manual, Rev. B 9 1.9 Power-up sequence 1. Power is applied to the drive. 2. When power is applied, the LED stays on for about 1 second. 3. The spindle motor reaches operating speed in about 4 seconds. 4. The magnetic actuator-lock releases the actuator. 5. The drive achieves final speed-control lock. 6. The heads position over track 0 and the drive is ready. 1.9.1 Power-down sequence Caution. Do not move the drive until the motor has come to a complete stop. 1. T
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10 Medalist Pro 6450/6451 Product Manual, Rev. B All measurements were taken at the drive power connector. A true RMS meter is used to measure all modes except Standby. A DMM is used for Standby measurements. 1.11.1.1 Active mode During the Active mode, the drive is involved in spinup, seeking or read/write activities. The table on page 11 shows the typical power-con- sumption rates for these activities. • Spinup. The drive enters the Spinup mode from the Standby mode and brings the spindle and
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Medalist Pro 6450/6451 Product Manual, Rev. B 11 1.11.2 Power consumption In the table below, the values apply at the drive power connector. Current was measured with an RMS DC ammeter. Read/ Spinup Seek write Idle Standby Current at +12V Amps max 3.0A — — — — RMS amps typ — 0.68 0.50 0.50 0.02 Watts typ — 8.1 6.0 6.0 0.25 Current at +5V RMS amps typ — 0.36 0.36 0.36 0.35 Watts typ — 1.8 1.8 1.8 1.75 Power Total watts typ — 9.8W 7.8W 7.8W 2.0W 1.12 Input noise +5V +12V Voltage tolerance ± 5%
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12 Medalist Pro 6450/6451 Product Manual, Rev. B 1.13.2 Temperature gradient ° ° Operating 20 C per hour (36 F per hour) ° ° Nonoperating 25 C per hour (45 F per hour) 1.13.3 Altitude Operating –1,000 ft. to 10,000 ft. (–305 m to 3,048 m) Nonoperating –1,000 ft. to 40,000 ft. (–305 m to 12,192 m) 1.13.4 Relative humidity Operating 8% to 80% noncondensing ° ° Maximum wet bulb 29.4 C (85 F) Maximum operating 10% per hour gradient Nonoperating 5% to 95% noncondensing ° ° Maximum wet bulb 35 C (95 F
