12 ST12450W/WD Installation Guide, Rev. B
General description
Barracuda 2, 2HP SCSI disc drives are high-speed,
random-access data storage devices. Two-head par-
allel technology effectively doubles the internal data
transfer rate when compared to non-parallel head
technologies.
ST12450W/WD drives are illustrated in Figure 1. Speci-
fications and DC power requirements for the drives are
listed in tables following the figure.
The drive is a component for installation in an enclosure
designed for the drive. This is often a rack within the
system or an external enclosure designed to house one
or more disc drives or other peripheral units. In either
case, the disc drive must receive adequate cooling (refer
to “Providing adequate cooling”) and it must be suffi-
ciently grounded and shielded from emissions. The

Barracuda 2, 2HP Product Manual

(part number
83328900) contains guidelines for a properly designed
enclosure.