Inhaltszusammenfassung zur Seite Nr. 1
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Marathon 810
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ATA Interface Drive
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Product Manual
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.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Marathon 810 (ST9816AG) .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ATA Interface Drive .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual .. . . . . . . . . . . .
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© 1995 Seagate Technology, Inc. All rights reserved Publication Number: 36300-101, Rev. A, August 1995 Seagate, Seagate Technology and the Seagate logo are registered trademarks of Seagate Technology, Inc. SafeRite and Marathon are trademarks of Seagate Technology, Inc. Other product names are reg- istered trademarks or 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 w
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Marathon 810 (ST9816AG) Product Manual, August 1995 iii Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Specification summary table . . . . . . . . . . . . . . . . . . . 2 1.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Formatted capacity . . . . . . . . . . . . . . . . . . . . . 5 1.1.1 Default logical geometry . . . . . . . . . . . . .
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iv Marathon 810 (ST9816AG) Product Manual, August 1995 1.11.2 FCC verification . . . . . . . . . . . . . . . . . . . . 13 2.0 Drive mounting and configuration . . . . . . . . . . . . . . 15 2.1 Handling and static-discharge precautions . . . . . . . . . 15 2.2 Jumper settings . . . . . . . . . . . . . . . . . . . . . . . 15 2.2.1 Master/slave configuration . . . . . . . . . . . . . . . 15 2.3 Remote LED configurati
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Marathon 810 (ST9816AG) Product Manual, August 1995 v Figures Figure 1. Typical startup and operation current profile for the ST9816AG . . . . . . . . . . . . . . . . . . . . . . 8 Figure 2. Connector and master/slave jumper setup for the ST9816AG . . . . . . . . . . . . . . . . . . . . . . 16 Figure 3. Mounting dimensions for the ST9816AG . . . . . . . . . 18 Figure 4. ATA Interface connector dimensions . . . . . . . . . . . 19 Fig
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Marathon 810 (ST9816AG) Product Manual, August 1995 1 Introduction The Marathon 810 (ST9816AG) provides high storage capacity in a small, low-profile hard disc drive. Key features: • SafeRite shock protection • Low power consumption • Compact, MCC-compatible form-factor • Quiet operation • Advanced partial-response, maximum-likelihood (PRML) read channel • Supports logical block addressing • Supports PIO modes 0, 1, 2, 3 and 4, and DMA modes 0, 1 and 2. • High instantaneous data-transfer rates
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2 Marathon 810 (ST9816AG) Product Manual, August 1995 Specification summary table The specifications listed in this table are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual. Drive Specification ST9816AG 6 810 Guaranteed Capacity (×10 bytes) Guaranteed sectors 1,583,568 Bytes per sector 512 Default sectors per track 63 Default Read/Write heads 16 Default cylinders 1,571 Physical read/write heads 8 Discs 4 Recording density (
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Marathon 810 (ST9816AG) Product Manual, August 1995 3 Drive Specification ST9816AG Average latency (msec) 6.67 Power-on to ready (seconds, typical) 7 Standby to ready (seconds, typical) 3 Spinup power and current (typical) 3.50 watts, 0.700 amps Seek power and current (typical) 2.10 watts, 0.420 amps Read/Write power and current (typical) 2.10 watts, 0.420 amps Idle mode power and current (typical) 1.30 watts, 0.260 amps Standby mode power and current (typical) 0.40 watts, 0.080 amps Sleep mode
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Marathon 810 (ST9816AG) Product Manual, August 1995 5 1.0 Drive specifications Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, at sea level, and nominal power. 1.1 Formatted capacity ST9816AG Guaranteed Mbytes 810.7 6 (1 Mbyte = 10 bytes) Guaranteed sectors 1,583,568 Bytes per sector 512 1.1.1 Default logical geometry ST9816AG Sectors per track 63 Read/Write heads 16 Cylinders 1,571 1.1.2 Supported translation geometries The ST9816AG supports all head,
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6 Marathon 810 (ST9816AG) Product Manual, August 1995 1.3 Recording and interface technology Interface ATA Recording method RLL (1,7) Recording density (bits/inch) 90,000 Flux density (flux change/inch) 67,500 Track density (tracks/inch) 3,807 2 Areal density (Mbits/inch ) 342 Spindle speed (RPM) 4,500 ( ± 0.5%) Internal data-transfer rate 44 (Mbits per sec max—ZBR) I/O data-transfer rate 16.6 (PIO mode 4 with IORDY) (Mbytes per sec max) 16.6 (multiword DMA mode 2) Interleave 1:1 Cache buffer (
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Marathon 810 (ST9816AG) Product Manual, August 1995 7 1.5 Seek time All seek times are measured using a 25 MHz 486 AT computer (or faster) with a 8.3 MHz I/O bus. The measurements are taken with nominal power at sea level and 25°C ambient temperature. The specifications in the table below are defined as follows: • Track-to-track seek time is an average of all possible single-track seeks in both directions. • Average seek time is a true statistical random average of at least 5,000 measurements o
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8 Marathon 810 (ST9816AG) Product Manual, August 1995 level. Active mode current and power are measured with a 32-msec delay between each operation and the drive in default logical geometry. Seeking power and currents are measured during one-third-stroke buff- ered seeks. Read/Write power and current are measured with the heads on track, based on a 16-sector write followed by a 32-msec delay, then a 16-sector read followed by a 32-msec delay. Spinup power is measured from time of power-on to tim
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Marathon 810 (ST9816AG) Product Manual, August 1995 9 1.7.2 Power recovery Except during execution of a write command, the drive’s power can be interrupted without adversely affecting the drive or previously written data. If power is removed while the drive is performing a write operation, the integrity of the data being written cannot be guaranteed. 1.7.3 Conducted noise The drive is expected to operate with a maximum of: • 150 mV peak-to-peak triangular-wave injected noise at the power connec
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10 Marathon 810 (ST9816AG) Product Manual, August 1995 is system-dependent and is usually established using the system setup utility. In Standby mode, the buffer remains enabled, the heads are parked and the spindle is at rest. The drive accepts all commands and returns to Active mode any time disc access is necessary. Sleep mode. The drive enters Sleep mode after receiving a Sleep Immediate command from the host. The heads are parked and the spindle is at rest. The drive leaves Sleep mode when
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Marathon 810 (ST9816AG) Product Manual, August 1995 11 1.8.4 Altitude Operating –300 m to 3,040 m (–1,000 ft to 10,000 ft) Nonoperating –300 m to 12,190 m (–1,000 ft to 40,000 ft) 1.8.5 Shock All shock specifications assume that the drive is mounted in an approved orientation with the input levels at the drive mounting screws. The nonoperating specifications assume that the read/write heads are posi- tioned in the shipping zone. Note. At power-down, the read/write heads automatically move to th
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12 Marathon 810 (ST9816AG) Product Manual, August 1995 1.8.6.2 Nonoperating vibration The following table lists the maximum nonoperating vibration that the drive may experience without incurring physical damage or degradation in performance when put into operation. 5–22 Hz 0.162-inch displacement (double amplitude) 22–450 Hz 4 Gs acceleration (peak) 450–22 Hz 4 Gs acceleration (peak) 22–5 Hz 0.162-inch displacement (double amplitude) 1.9 Drive acoustics Drive acoustics are measured as sound pres
