Scorpion 40 Capacity And Transfer Rates - Seagate STD2401LW-S Product Manual

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Scorpion 40 Capacity and Transfer Rates

The DDS recording format standard, ANSI/ECMA-139, 3,81mm Wide Magnetic
Tape Cartridge for Information Interchange - Helical Scan Recording - DDS
Format.
The DDS-DC recording format standard, ANSI/ECMA-150, 3,81mm Wide
Magnetic Tape Cartridge for Information Interchange - Helical Scan Recording -
DDS-DC Format using 90 m length tapes.
Note: The Scorpion 40 can use 90-meter DDS-1 media but not 60-meter
DDS-1 media.
The DDS-2 recording format standard, ANSI/ECMA-198, 3,81mm Wide Magnetic
Tape Cartridge for Information Interchange - Helical Scan Recording - DDS-2
Format using 120 m Length Tapes.
The DDS-3 recording format standard, ANSI/ECMA-236, 3,81mm Wide Magnetic
Tape Cartridge for Information Interchange - Helical Scan Recording - DDS-3
Format using 125 m Length Tapes.
The DDS-4 recording format specification from ECMA-288: 3,81 mm Wide
Magnetic Tape Cartridge for Information Interchange - Helical Scan Recording:
DDS-4 Format.
Note: For the latest ECMA standards, see the ECMA web site at
http://www.ecma.ch
The Scorpion 40 provides the following capacities and transfer rates, depending on
recording mode and tape length:
DDS-1
Tape length 90 meters
Capacity 2.0 Gbytes
(native)
Capacity 4 Gbytes
(compressed)
Transfer rate 1,375
(native) Kbytes/sec
In data-compression mode, the Seagate Scorpion 40 drive typically doubles the
storage capacity and transfer rate of the native uncompressed operation. Tape
capacity and sustained data-transfer rate are dependent upon the characteristics of
the files being compressed, along with system parameters such as the speed of the
host, the operating system and the application software used. The Scorpion 40 drive
also offers synchronous or asynchronous SCSI transfers with a high-speed burst
data-transfer rate of 40 Mbytes per second.
Scorpion 40 DDS-4 Product Manual, Version A
Recording Mode
DDS-2 DDS-3
120 meters 125 meters
4.0 Gbytes 12.0 Gbytes
8 Gbytes 24 Gbytes
1,375 2,750
Kbytes/sec Kbytes/sec
DDS-4
150 meters
20.0 Gbytes
40 Gbytes
2,750
Kbytes/sec