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Introduction Chapter 1
STT8000A Product Manual Page 5
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 of head motion as the heads
change position for each track.
Flash EEPROM
The STT8000A incorporates leading-edge technology in the flash EEPROM, which
is useful should the drive's firmware need to be upgraded at some point. With the
permanently installed, electrically upgradeable, flash EEPROM memory, revised
firmware for the drive can be loaded via any one of two methods:
• Seagate OEM firmware cartridge (See chapter 4)
• Host IDE bus
This feature enables qualified OEMs needing to revise the drive firmware to do so
rapidly and at a reduced cost. Flash EEPROM should also prolong the life cycle of a
drive because many new techniques—such as increasing the capacity of the drive
through support for longer tapes—may require only a firmware upgrade.
Software
The STT8000A is a cost-effective means of backing up fixed disks. The drive is
compatible with DOS
TM
version 5.0 or later, Microsoft Windows
TM
3.1 or later,
Microsoft Windows 95, or Windows NT and will operate with many of the popular
backup software applications such as Seagate 's Backup for DOS and Windows,
Windows 95, NetWare, or Windows NT.
References
The following standards documents describe some of the technology incorporated in
the drives referenced in this manual.
•
QIC-170
—Preformatted magnetic minicartridge
•
QIC-157
—ATAPI command set for streaming tape
•
QIC-3095-MC
—Serial recorded magnetic tape minicartridge
•
QIC-3080-MC
—Serial recorded magnetic tape minicartridge
For more information about a particular QIC standard, contact Quarter-Inch
Cartridge Standards, Inc., c/o Freeman Associates, 311 East Carrillo Street, Santa
Barbara, California 93101.
- STT8000A 1
- ATAPI Minicartridge Drive 1
- Product Manual 1
- Technology, Inc 2
- FCC Notice 3
- Table of Contents 5
- ATAPI interface 31 6
- Tape format 63 7
- Theory of operations 69 7
- Glossary 73 8
- Acronyms and measurements 77 8
- Introduction 9
- Figure 1-1 10
- Features 11
- Typical system configurations 12
- Flash EEPROM 13
- Software 13
- References 13
- About this manual 14
- Specifications 15
- Figure 2-1 16
- Figure 2-2 16
- Power specifications 17
- Performance specifications 18
- Environmental requirements 19
- Mean-Time-Between Failures 20
- Mean-Time-To-Repair 20
- Recommended tapes 21
- Tape capacities and formats 21
- Regulatory compliance 22
- Installation 23
- Handling guidelines 23
- Setting jumpers 24
- Installing the drive 25
- Mounting dimensions 26
- Figure 3-4 27
- Figure 3-5 27
- Chapter 3 Installation 28
- Installation Chapter 3 29
- DRIVE ACTIVE 31
- Using Travan cartridges 32
- Figure 4-4 33
- Figure 4-5 33
- Caring for tape cartridges 35
- Caring for the drive 35
- Capstan Tape Head 36
- Troubleshooting 37
- ATAPI interface 39
- ATA-2 Signals 39
- ATA registers 40
- ATAPI Interface Chapter 5 41
- Supported ATA Commands 42
- Chapter 5 ATAPI Interface 44
- Erase command 47
- Inquiry command 48
- Load/Unload command 49
- Locate command 50
- Log Select command 51
- Log Sense command 52
- Error Counter Page (Read) 53
- Tape Capacity Page Code 54
- Mode Select command 55
- Mode Sense command 56
- Mode Parameter Header 57
- Mode Block Descriptor 57
- Mode Medium Partition Page 58
- Mode Tape Parameters Page 59
- Read command 60
- Read Position command 61
- Request Sense command 63
- Rewind command 65
- Space command 66
- Test Unit Ready command 67
- Write command 68
- Write Filemark command 69
- Tape format 71
- Track numbering 72
- Track format 72
- Figure 6-1 73
- General track layout 73
- Figure 6-2 73
- General frame layout 73
- Tape reference servo pattern 74
- Write equalization 75
- Randomization 75
- Chapter 6 Tape format 76
- Overview 77
- Block diagram 77
- Cartridge load mechanism 78
- Capstan drive motor assembly 78
- Control circuits 79
- Head design 79
- Sensors and switches 79
- Media—Travan minicartridges 80
- Glossary 81
- Appendix A Glossary 82
- Glossary Appendix A 83
- Acronyms and measurements 85
- Units of measurement 87
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