Sun Microsystems HP LTO4 manual Description Specification

Specifications

TABLE 1-2provides a comparison of media specifications.

TABLE 1-2Media Specifications

Specification		LTO 2		LTO 3	LTO 4
Tape Base film			PEN (Poly-Ethylene-Naphthalate)
Tape length		609m		680m	820m
Tape length used for data		580m		648m	783m
Tape width		12.65 mm		12.65 mm	12.65 mm
Tape dimensional stability		1200 ppm		1200 ppm	900 ppm
Maximum tape speed				7.29 m/s
Rewind speed				7.00 m/s
Durability				1,000,000 passes
Cartridge Width				105.4±0.30 mm
Depth				102.0±0.30 mm
Height				21.5±0.25 mm
Weight				0.220 kg
Track density (TPI)		1260		1773	2212
Data tracks		512		704	896
Data channels		8		16	16
Number of wraps		64		44	56
Number of bands		4		4	4
Bit density		7.40 Kb/mm		9.64 Kb/mm	13.52 Kb/mm
Cartridge memory capacity		4096 bytes		4096 bytes	8192 bytes
	TABLE 1-3lists the reliability specifications.
	TABLE 1-3Reliability Specifications
	Description			Specification
	MTBF (100% duty cycle)			250,000 hours
	Load/unload life			100,000 swaps
	Head life			60,000 hours
	Media durability			1,000,000 passes
	Maximum cartridge use			20,000 threads

4 KMS: LTO4 Technical Brief • June 2008 Revision: A • 316196601