Sun Microsystems StorageTek HP LTO4 - Manual (Page 12)

Specifications
4 KMS: LTO4 Technical Brief • June 2008 Revision: A • 316196601
TABLE 1-2 provides a comparison of media specifications.
TABLE 1-3 lists the reliability specifications.
TABLE 1-2 Media 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 1-3 Reliability 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