Technical information

2.2.11 TK70 Tape Drive
The TK70 is a streaming-tape-drive subsystem that can store up to 296
Mbytes on a
tape cartridge for backup data storage. The TK70 can read
data from cartridges recorded on a TK50 drive, but cannot write data to
cartridges recorded on a TK50 drive.
Functional Information
Recording media
Tape dimensions
Mode
of operation
Recording method
Recording density
Number of tracks
Storage capacity
Ordering Information
TK70E-AF
TKQK70-SF
Performance
Tape start time
Tape stop time
Tape speed
Streaming data rate
Access time (from insertion of tape)
TK50 mode (read-only)
TK70 mode
Physical Specifications
Height
Width
Depth
Weight
Magnetic
tape
1.27 em (0.5 in) wide, 182.9 m (600 ft) long
Streaming
Serpentine
10,000 bits/in
48
296 Mbytes
formatted
296 Mbyte cartridge tape drive
Controller for
TK70E-AF
325 milliseconds maximum
200 milliseconds maximum
390 cm/second (100 in/second)
125 Kbytes/second
35 minutes maximum
60 minutes maximum
8.25 em (3.25 in)
14.60 cm (5.70 in)
21.44 cm (8.44 in)
3.07 kg (5.0 lb)
2-16 VAX 4000 Model 300 Technical Information