Scope - Seagate ST32151N Product Manual

Hawk 2XL Product Manual, Rev. B
1.0

Scope

This manual describes the Seagate Technology, Inc. Hawk 2XL family of disc drives. This high capacity, high
performance member of the Seagate 1-inch high 3.5-inch rigid disk family is a next generation product from the
Hawk 2LP (ST34230) disc drive. The Hawk 2XL features a new cost-optimized HDA, reduced cost SCSI code,
reduced header fields and the use of innovative technology in the embedded servo, R/W heads, read circuits
and SCSI controller. Section 5 lists performance information for this drive. The Hawk 2XL drive operates an
interface to the host defined by a subset of ANSI SCSI 2/SCSI 3 as described in Section 9 of this manual
(Vol.1) and the Seagate SCSI Interface manual 77738479 (Vol. 2).
The Hawk 2XL family consists of ST32151, ST31051, ST32155 and ST31055 products. Models offered are N,
W, and WC.
Table 1 lists the salient features that differentiate the different Hawk 2XL model numbers.
Table 1: Drive model number vs. differentiating features
Fast SCSI-3
Model number # Heads I/O Ckts
ST32151N 8
ST32151W 8
ST32151WC 8
ST31051N 4
ST31051W 4
ST31051WC 4
ULTRA SCSI-3 [1]
Model number # Heads I/O Ckts
ST32155N 8
ST32155W 8
ST32155WC 8
ST31055N 4
ST31055W 4
ST31055WC 4
From this point on in this Product Manual the reference to Hawk 2XL family models is referred to as "the drive"
(unless reference to individual models are necessary).
The drive printed circuit board is referred to as a PCB.
[1] ULTRA SCSI is Seagate's name for the ANSI proposed "FAST-20" interface.
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
#I/O
connector
single-ended 50
single-ended 68
single-ended 80
single-ended 50
single-ended 68
single-ended 80
#I/O
connector
single-ended 50
single-ended 68
single-ended 80
single-ended 50
single-ended 68
single-ended 80
Interface Data
I/O data bus bits transfer rate
(Mbytes/sec)
8 10
16 20
16 20
8 10
16 20
16 20
Interface Data
I/O data bus bits transfer rate
(Mbytes/sec)
8 20
16 40
16 40
8 20
16 40
16 40
1