Seagate CD72LWH - Drive Performance Specifications

10
DAT 72/DDS-4 Product Manual
Drive Performance Specifications
The following table lists the specifications for the DAT 72 drive.
Specification
Value
Capacity
125 m MP++
150 m MP+++
170 m MP++++
24.0 Gbytes
40.0 Gbytes
72.0 Gbytes
Error recovery
Read-after-write (RAW)
Reed Solomon ECC (C3 - 3 levels)
Track density (DAT 72)
4704 tracks per inch (TPI)
Recording unrecoverable errors
<1 in 10
15
data bits
Tape drive type
Computer-grade 4DD mechanism
Head configuration
2 read heads, 2 write heads
Recording format
DDS 5
th
Generation
Recording method
Helical scan
Cartridge
73.66 mm × 53.34 mm × 10.16 mm
Transfer rate (sustained)
7.700 Kbytes per sec (DC ON)
Synchronous transfer rate (burst)
80 Mbytes per sec max
Asynchronous transfer rate (burst)
10 Mbytes per sec max
Search speed (max)
200x normal (3260 mm per sec)
Average access time
125 m cartridge
150 m cartridge
170 m cartridge
< 30 seconds
< 30 seconds
< 40 seconds
Drum rotation speed
10,000 Revolutions per Minute (RPMs)
Tape speed
2 meters per second
Head-to-tape speed
15.75 mm/second