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2.0
Drive specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal
power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate
ST3160022A, ST3120025A, ST380012A, and ST360019A model drives.
2.1
Specification summary table
The specifications listed in this table are for quick reference. For details on specification measurement or defi-
nition, see the appropriate section of this manual.
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, BPI (bits/inch max)
Track density, TPI (tracks/inch max)
2
Areal density, (Mbits/inch
max)
Sustained data transfer rate OD (Mbytes/sec)
I/O data-transfer rate (Mbytes/sec max)
ATA data-transfer modes supported
Cache buffer
Height (mm max)
Width (mm max)
Length (mm max)
Weight (typical)
Average latency (msec)
Power-on to ready (sec typical)
Standby to ready (sec typical)
Startup current (typical) 12V (peak)
Track-to-track seek time (msec typical)
Average seek, read (msec typical)
Average seek, write (msec typical)
Seek power (typical)
U Series 9 Product Manual, Rev. D
ST3160022A
ST3120025A
160
120
312,581,808
234,441,648
512
63
16
16,383
4
3
2
2
595,000
94,600
56.3
48
100
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
1 Mbyte (1,024 kbytes)
26.035 mm (1.028 inches)
101.6 mm (4.000 inches)
146.99 mm (5.787 inches)
635 grams (1.4 lb)
4.16
10 sec
10 sec
2.8 amps
<1.0 (read), <1.2 (write)
8.5
9.5
12.5 watts
ST380012A
ST360019A
80
60
156,301,488
117,231,408
2
2
1
1
3
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