Chapter 5 Specifications
Drive Performance Specifications
LTO-4 (Model B) Half-Height Tape Drive User’s Guide
47
Drive Performance Specifications
Table 6
lists the performance specifications of the LTO-4 (Model B) Half-
Height Tape Drive.
Table 6 Drive Performance
Specifications
Specification
Value
Average data access time
(820-m tape) from BOW
(beginning of wrap)
85 seconds
Average rewind time
(820-m tape)
88 seconds
Maximum rewind time
(820-m tape)
171 seconds
Capacity
LTO Ultrium 4 (820 m)
800 Gbytes (native)
Cartridge unload time
<22 seconds (Half-Height drive)
Error recovery
Read-after-write Reed Solomon ECC
(2 levels)
Flux density
13250 cells per mm
Head configuration
2 bumps
16 thin-film write heads per bump
16 MR read heads per bump
2 MR servo heads per bump
Maximum data access time
(650-m tape) from BOW
100 seconds (Half-Height drive)
Recording density
6,760 RLL-encoded ONEs per mm
Recording format
Ultrium 16-channel (U-416)
Recording method
0, 13/11 RLL
Содержание LTO-4 (Model B)
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Страница 8: ...Figures viii LTO 4 Model B Half Height Tape Drive User s Guide...
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Страница 20: ...Chapter 1 Introduction Features 4 LTO 4 Model B Half Height Tape Drive User s Guide...
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