Scorpion 24 Capacity And Transfer Rates - Seagate STD124000N Product Manual

Chapter 1
Page 2
The Scorpion 24 drive complies with:
z
The DDS recording format standard, ANSI/ECMA-139, 3,81mm Wide Magnetic
Tape Cartridge for Information Interchange - Helical Scan Recording - DDS
Format.
z
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 60 m and 90 m Length Tapes.
z
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.
z
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.

Scorpion 24 Capacity and Transfer Rates

The Scorpion 24 provides the following capacities and transfer rates, depending on
recording mode and tape length:
Tape length
Capacity (native)
Capacity (compressed)
Transfer rate (native)
In data-compression mode, the Seagate Scorpion 24 drive typically doubles the
storage capacity and transfer rate of the native uncompressed operation. Tape
capacity and sustained data-transfer rate are also dependent upon the
characteristics of the files being compressed, along with other system parameters,
including the speed of the host, the operating system and the application software
used.
The Scorpion 24 drive also offers synchronous or asynchronous SCSI transfers with
a high-speed burst data-transfer rate of 10 Mbytes per second.
The Scorpion 24 provides unmatched reliability through three levels of error-
correction code (ECC) and the four-head design, which provides for read-after-write
(RAW) error detection and correction. The Scorpion 24 also contains an onboard
serial port that provides the capability for extensive testing of the drives.
Recording Mode
DDS DDS-DC
60 meter 90 meter
1.3 Gbytes 2.0 Gbytes
N/A 4.0 Gbytes
780 780
Kbytes/sec Kbytes/sec
Introduction
DDS-2 DDS-3
120 meter 125 meter
4.0 Gbytes 12.0 Gbytes
8.0 Gbytes 24.0 Gbytes
780 1.1
Kbytes/sec Mbytes/sec
DAT Drives