Product Manual - Hawk 2 Family (Wide bus) SCSI-2 (Volume 1), Rev. A 1

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1.0

Scope

This specification describes the Seagate Technology, Inc. Hawk 2 family Model ST12400 Wide SCSI bus

Disc Drive. This high capacity, high performance member of the Seagate 3.5 inch rigid disc family has a new

HDA (Head/Disc Assembly) design having improvements over previous 3.5-inch Seagate models. It has an embedded SCSI controller. Performance information is given in Section 5. The Model Hawk 2 Family (Wide bus) drive interface is defined for functional compatibility to a subset of the Seagate SCSI-2/SCSI-3 Interface

Specification 77738479, and the ANSI SCSI-2/SCSI-3 standards. The Model Hawk 2 Family (Wide bus) drives are classified as “Intelligent” peripherals. The Hawk 2 Family (Wide bus) provides Level 2 conformance (highest level) with the ANSI SCSI-1 standard. Details of the Hawk 2 Family (Wide bus) drive SCSI implementation are provided in Section 11 of this specification, (Volume 1) and in the SCSI-2/SCSI-3 Interface Product Manual P/N 77738479 (Vol. 2; Ver. 2).

The Hawk 2 wide family of drives consists of the ST12400W, ST12400WD and ST12400WC drives.

From this point on in this Product Manual the reference to Hawk 2 Family (Wide bus) is referred to as “the drive” (unless reference to individual models are necessary).

The drive printed circuit board is referred to as a PCB.

SEAGATE

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*I/O connector shown is on models ST12400W/WD drives.

Model ST12400WC has a single 80 pin connector.

Figure 1-1. Hawk 2 family (Wide SCSI bus) drive