Quantum LTO-2 manual Specification Value

Chapter 5 Specifications

Drive Performance Specifications

Table 7 Drive

Performance

Specification

Specification	Value
Capacity
LTO-2 (609 m)	200 Gbytes (native)
Ultrium type A (609 m)	100 Gbytes (native)
Ultrium type B (319 m)	50 Gbytes (native)
Ultrium type C (203 m)	30 Gbytes (native)
Ultrium type D (87 m)	10 Gbytes (native)
Recording density	3,930 RLL-encoded ONEs per mm
Flux density	3,660 flux transitions per mm
Track density	3 tracks per mm
Error recovery	Read-after-write Reed Solomon ECC (2 levels)
Recording unrecoverable errors	<1 in 1017 data bits
Recording undetectable errors	< 1 in 1027 data bits
Tape drive type	LTO-2 (Ultrium)
Head configuration	16 thin-film write heads
	16 MR read heads
	4 MR servo heads
	During operation 8 write heads, 8 read heads, and
	2 servo heads are active at the same time
Recording format	Ultrium 8-channel (U-28)
Recording method	0, 13/11 RLL
Transfer rate (sustained)	20 Mbytes/second (max, native)
Cartridge unload time	3 seconds

40 LTO-2 Half-Height Tape Drive User’s Guide