Exabyte EXB-8505 8mm User Manual

Figures

Features

Figure 1-1

Comparison of the four tape drives . . . . . . . . . . . . . . . . . . . . . . 1-3

Figure 1-2

Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Figure 1-3

Label location and content . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Figure 1-4

Back panel (single-ended configuration) . . . . . . . . . . . . . . . . . . 1-11

Figure 1-5

Internal components (EXB-8505 shown) . . . . . . . . . . . . . . . . . . 1-13

Figure 1-6

Location of the read heads and write heads . . . . . . . . . . . . . . . . 1-14

Figure 1-7

External dimensions in inches (and millimeters) . . . . . . . . . . . . . 1-17

Figure 1-8

EXB-210 8mm Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18

Figure 1-9

Mini Tabletop CTSs with EXB-8505s installed . . . . . . . . . . . . . . . 1-19

Recording Format

Figure 2-1

Helical-scan recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Figure 2-2

Relationship of 8mm physical track structures to logical data formats . . 2-4

Figure 2-3

Physical track structure for 8500 and 8500c format . . . . . . . . . . . . . 2-5

Figure 2-4

Position of the tape drive’s heads relative to the tracks

(8500/8500c format) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Figure 2-5

Physical track structure for 8200c track format . . . . . . . . . . . . . . . 2-7

Figure 2-6

Physical track structure for 8200 track format . . . . . . . . . . . . . . . . 2-7

Figure 2-7

Position of the tape drive’s heads relative to the tracks

(8200c format) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Figure 2-8

Physical block format for all logical formats

(8200c or 8500/8500c physical track structure shown) . . . . . . . . . . . 2-9

Figure 2-9

Logical block packing (one physical block) . . . . . . . . . . . . . . . . 2-14

Figure 2-10

Gap bytes (one physical block) . . . . . . . . . . . . . . . . . . . . . . . 2-15

Figure 2-11

One gap block and one gap track in two physical tracks . . . . . . . . 2-16

Functional Description

Figure 3-1

Data flow during a write operation . . . . . . . . . . . . . . . . . . . . . . 3-2

Figure 3-2

Data flow during a read operation . . . . . . . . . . . . . . . . . . . . . . 3-7

Requirements for Use

Figure 4-1

SCSI ID jumper block on the back panel (single-ended configuration) . . 4-2

Figure 4-2

Mounting holes on the sides . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Figure 4-3

Mounting holes on the bottom . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Figure 4-4

Mounting hole dimensions in inches (and millimeters) . . . . . . . . . . 4-5

Figure 4-5

SCSI connector location on the back panel . . . . . . . . . . . . . . . . . . 4-8

Figure 4-6

LEDs on the faceplate of the EXB-8505 and EXB-8505XL . . . . . . . . . 4-12

Figure 4-7

LEDs on the faceplate of the EXB-8205 and EXB-8205XL . . . . . . . . . 4-12

viii

EXB-8205 and EXB-8505

510504

(Standard and XL)