Drive Specifications; Specification Summary Table - Seagate ST3120023AS Product Manual

Barracuda Serial ATA V Product Manual, Rev. A
2.0 Drive specifications
Unless otherwise noted, all specifications are measured under ambient con-
ditions, at 25˚C, and nominal power. For convenience, the phrases the drive
and this drive are used throughout this manual to indicate the ST3120023AS,
ST380023AS and ST360015AS models.
2.1 Specification summary table
The specifications listed in this table are for quick reference. For details on
specification measurement or definition, see the appropriate section of this
manual.
Table 1: Drive specifications
Drive specification
Formatted Gbytes
(512 bytes/sector)
Guaranteed sectors
Bytes per sector
Default sectors per track
Default read/write heads
Default cylinders
Physical read/write heads
Discs
Recording density in BPI
(bits/inch max)
Track density TPI
(tracks/inch max)
Areal density
2
(Mbits/inch max)
Spindle speed (RPM)
Max. Internal transfer rate
(Mbits/sec max)
Sustained transfer rate
(Mbytes/sec)
I/O data transfer rate
(Mbytes/sec max)
ST3120023AS
120
234,441,648
4
2
ST380023AS ST360015AS
80
156,301,488
512
63
16
16,383
3
2
542,000
78,000
42,200
7,200
570
27 to 44
150
3
60
117,231,408
2
1