HP (Hewlett-Packard) Ultrium Drive Manuale Utente
Media
20
7 Media
Specification
*Capacities at 2:1 data compression. The actual capacity depends on the compression ratio of the data. This is
typically 2:1 but can be anywhere between 1:1 and 110:1.
HP Product Number
Format
Capacity*
Notes
C7973A
U3
800 GB
Read and write
C7973W
U3 WORM
800 GB
Write once, read many times
C7972A
U2
400 GB
Read and write
C7971A
U1
200 GB
Read-only in Gen 3 drives
Ultrium 1
Ultrium 2
Ultrium 3
Tape
Base film:
6
µ
m (Poly-Ethylene-Naphthalate) PEN
Tape length:
609m
609m
680m
Tape length used for data:
580m
580m
648m
Tape width:
12.65 mm
12.65 mm
12.65 mm
Tape thickness:
8.9±0.3
µ
m
8.9±0.3
µ
m
8.0±0.3
µ
m
Tape dimensional stability:
1200 ppm
1200 ppm
1200 ppm
Maximum tape speed:
5.5 m/s
7.29 m/s
7.29 m/s
Rewind speed:
4.1 m/s
7.00 m/s
7.00 m/s
Durability:
1,000,000 passes 1,000,000 passes 1,000,000 passes
Cartridge
Width:
105.4±0.30 mm
105.4±0.30 mm
105.4±0.30 mm
Depth:
102.0±0.30 mm
102.0±0.30 mm
102.0±0.30 mm
Height:
21.5±0.25 mm
21.5±0.25 mm
21.5±0.25 mm
Weight:
0.220 kg
0.220 kg
0.220 kg
Recording layout
Track pitch:
27.5
µ
m
20.17
µ
m
14.3
µ
m
Track density (TPI):
768
1024
1773
Data tracks:
384
512
704
Data channels:
8
8
16
Number of wraps:
48
64
44
Number of bands:
4
4
4
Bit density:
4.88 kb/mm
7.32 kb/mm
9.57 kb/mm