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A-54 Scorpion 240 Autoloader Installation Manual
Summary of drive specifications
Category Specification (six-cassette magazine)
Performance specifications
Tape length/type
90 m MP
120 m MP+
125 m MP++
150 m MP+++
(based on 2:1 data compression)
24.0 Gbyte (4.0 Gbytes / cassette)
48.0 Gbyte (8.0 Gbytes / cassette)
144.0 Gbyte (24.0 Gbytes / cassette)
240.0 Gbyte (40.0 Gbytes / cassette)
Recording density (DDS-4) 122,000 bpi
Track density (DDS-4) 147.34 tracks/mm
Error recovery Read-after-write, Reed Solomon ECC,
(C3 - 3 levels)
Unrecoverable recording errors < 1 in 10
15
data bits
Head configuration 2 read heads, 2 write heads
Recording format DDS-1, DDS-2, DDS-3, DDS-4
Cartridge dimensions 2.9 in. x 2.1 in. x 0.4 in.
Transfer rate (sustained) 2.75 Mbyte/sec uncompressed
5.5 Mbyte/sec compressed
Synchronous transfer rate (burst) 80 Mbyte/sec max (LVD)
40 Mbyte/sec max (single-ended)
Search speed 400 X normal speed
Average access time
90 m tape
120 m tape
125 m tape
150 m tape
(single cassette)
<30 sec
<40 sec
<40 sec
<40 sec
Load Time ≤ 15 sec
Cassette swap time ≤ 8.5 sec
Drum rotation speed 10,000 RPM