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Chapter 2 Specifications Performance specifications The following table lists the performance specifications for the STT8000A. Feature Specification Capacity 4.0 gigabytes—900Oe 740' Travan cartridge (uncompressed) 8.0 gigabytes—900Oe 740’ Travan cartridge (compressed) Effective backup rate 30 Mbytes/min typical native; 45 Mbytes/min typ. compressed FastSense Data transfer rate 300 / 450 / 600 Kbytes per second Tape speed Read/Write 33, 51, 77 ips Search/Rewind 90 ips maximum Recording method S
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Specifications Chapter 2 Environmental requirements The following table lists the environmental specifications for the STT8000A. The drive may be mounted either vertically or horizontally. Specification Operational Non-operational 1 o 2 Temperature +41° to +113° F –40° to +149 F o (+ 5° to + 45° C) (–40° to + 65 C) Thermal gradient 1° C per minute 20° C per hour (no condensation) 20% to 80% 5% to 95% Relative humidity 1 2 non-condensing non-condensing Maximum wet bulb temperature 78.8° F (26° C)
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Chapter 2 Specifications Reliability The STT8000A is designed for maximum reliability and data integrity. The following table summarizes the reliability specifications. Feature Specification 15 Non-recoverable error rate < 1 in 10 bits Error recovery and control Reed-Solomon Error Correction Code techniques Error monitoring and reporting (Error Log) Media pre-written Retry on read Data randomization Mean-Time-Between-Failures More than 200,000 hours (MTBF) Mean-Time-To-Repair (MTTR) Less than 0.
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© 1998 Seagate Technology, Inc. All rights reserved No part of this publication may be reproduced in any form without written permission from Seagate Technology, Inc. Publication Number 10002475-004, April 1998 Seagate, Seagate Technology, the Seagate logo and Sidewinder are trademarks or 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 specific
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FCC Notice This equipment generates and uses radio frequency energy and, if not installed and used properly—that is, in strict accordance with the manufacturer's instructions—may cause interference to radio communications or radio and television reception. It has been tested and found to comply with the limits for a Class B computing device in accordance with the specifications in Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference in a residential
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Important Information About This Manual All information contained in or disclosed by this document is considered proprietary by Seagate Technology. By accepting this material, the recipient agrees that this material and the information contained therein are held in confidence and in trust and will not be used, reproduced in whole or in part, nor its contents revealed to others, except to meet the purpose for which it was delivered. It is understood that no right is conveyed to reproduce or trans
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Table of Contents Table of Contents Introduction 1 Drive overview ........................................................................................................ 1 Features ................................................................................................................. 3 Typical system configurations ................................................................................. 4 Minicartridge technology overview.......................................................
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Table of Contents Loading and unloading cartridges ................................................................... 24 Setting the write–protect switch ...................................................................... 25 Loading revised firmware via Seagate firmware cartridge...................................... 26 Care and maintenance of the drive and cartridges................................................. 27 Caring for tape cartridges ..............................................
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Table of Contents Mode Parameter Header ................................................................................ 49 Mode Block Descriptor.................................................................................... 49 Mode Medium Partition Page.......................................................................... 50 Mode Capabilities and Mechanical Status Page.............................................. 50 Mode Tape Parameters Page............................................
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Table of Contents Glossary 73 Acronyms and measurements 77 Acronyms and abbreviations ................................................................................. 77 Units of measurement........................................................................................... 79 Page viii STT8000A Product Manual
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Introduction Chapter 1 Introduction 1 Drive overview The Seagate STT8000A ATAPI minicartridge drive extends the Seagate family of one-inch high, DC2000 drives that feature high performance, high reliability, and quiet operation. The drive transfers data at up to 36 megabytes per minute (Mbytes/min) without compression. With optimal system resources and compressible data structures, nominal transfer rates of up to 60 Mbytes/min can be observed using software data compression (assumes 2:1 compress
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Chapter 1 Introduction The STT8000A conforms to the QIC-3095 development standard adopted by Quarter-Inch Cartridge Drive Standards Inc. (QIC). The drive records in a serpentine fashion utilizing a 1,7 RLL (Run Length Limited) data encoding method, and provides for 72 data tracks and one (1) directory track on Travan TR-4 media. The drive offers electronically erasable, programmable, read-only memory (flash EEPROM), which enables qualified Seagate OEMs to download revised firmware to the drive.
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Introduction Chapter 1 Figure 1-2 Internal STT8000A with mounting brackets Features The STT8000A embodies Seagate's commitment to engineer reliable and durable tape drive products. Key features of the drive are as follows: • Two Internal form factors for installation in 5.25-inch half-high or 3.5-inch by one-inch drive bays • Capability to write and read Travan TR-4 (QIC-3095) media, as well as minicartridge or QIC-Wide media conforming to the QIC-3080 standard • QIC-3095-MC tape format complian
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Chapter 1 Introduction Typical system configurations The Enhanced IDE standard supports up to four ATAPI peripherals: two devices on the primary port and two devices on the secondary port. Of the two devices, one must be slave to the other, which is the master. Figure 1-3 shows sample configurations for two ATAPI systems. Figure 1-3 Sample ATAPI configurations Hard Primary disc Computer Enhanced IDE bus CD-ROM system IDE (master) Secondary controller IDE bus STT20000A (slave) Hard Primary Enhanc
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Introduction Chapter 1 Instead, the write-read heads are logically or mechanically switched to a different position on the tape and another track is written or read in the reverse direction. That is, the drive first records track 1 in one direction and when the end of the tape is reached, the head is moved and the direction of tape motion is reversed to record track 2. This serpentine process continues until the entire tape is recorded. The individual tracks are sequential to minimize the amount
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Chapter 1 Introduction About this manual The remaining chapters and the appendices in this manual are briefly described in the following table. A glossary of terms is also included. Chapter Title Description 2 Specifications Contains physical, performance, environmental, reliability, power, and minicartridge specification tables. 3 Installation Provides cautions, unpacking tips, inspection information, installation/connection instructions, mounting dimensions, and connector pinouts. 4 Drive oper
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Specifications Chapter 2 Specifications 2 Overview The STT8000A provides exceptional reliability in storing large amounts of computer data. This chapter includes the following specifications and requirements: • Physical specifications • Power requirements • Drive performance specifications • Environmental requirements • Reliability • Recommended tapes • Tape capacities and formats • Regulatory compliance Physical specifications The physical specifications of the STT8000A are listed in the follow
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Chapter 2 Specifications Figure 2-1 STT8000A (3.5-Inch mount) general dimensions 4.00 in (101.6 mm) 6.19 in (157.2 mm) 0.157 in (4 mm) 4.00 in (101.6 mm) 1.00 in (25.4 mm) Figure 2-2 STT8000A (5.25-Inch mount) general dimensions 0.86" (21.8mm) 5.49" (139.4mm) 5.76" (146.4mm) 0.20" (5.0mm) 5.87" (149.0mm) 1.685" (42.8mm) DRIVE ACTIVE (GREEN) Page 8 STT8000A Product Manual
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Specifications Chapter 2 Power specifications The following table lists the power specifications for the STT8000A. (Power specifications are measured at the tape drive power connector and are nominal values.) Specification Measurement DC Voltage +12 VDC +5 VDC Voltage Tolerance ± 10% ± 5% Operational Current 2.0 amps 1.0 amp Standby Current 0.2 amp 0.6 amp Peak 2.2 amps max. — Power Sequence None None Ripple (peak to peak) ≤ 100 mV ≤ 100 mV Power use < 15 Watts < 15 Watts (nominal) (excluding su
