Seagate MOMENTUS 5400.3 ST9160821AB User Manual
Page 11
Momentus 5400.3 PATA Blade Server Product Manual, Rev. B
5
Table 1:
Specifications for 100 and 80 Gbyte models
Drive specification
ST9100828AB
ST980815AB
Formatted Gbytes (512 bytes/sector)*
100
80
Guaranteed sectors
195,371,568
156,301,488
Bytes per sector
512
Physical read/write heads
3
2
Discs
2
1
Cache (Mbytes)
8
Recording density, BPI (bits/inch typical)
835k
Track density, TPI (tracks/inch typical)
150k
Areal density (Gbits/inch
2
max)
132
Spindle speed (RPM)
5,400
Internal data transfer rate (Mbits/sec max)
352
I/O data-transfer rate (Mbytes/sec max)
100
ATA data-transfer modes supported
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
Height
9.5 +/-0.2 mm (0.374 +/-.008 inches)
Width
69.85 +/-0.25 mm (2.750 +/-0.010 inches)
Length
100.50 +/-0.25 mm (3.957 +/-0.010 inches)
Weight (typical)
100 grams (0.22 lb)
96 grams (0.21 lb)
Average latency (msec)
5.6
Power-on to ready (sec typical)
3.0
Standby to ready (sec typical)
3.0
Track-to-track seek time (msec typical)
1.0 (read), 1.5 (write)
Average random seek , write (msec typical)
13.0
Average random seek, read (msec typical)
11.0
Average random seek, (msec typical)
12.5
Full-stroke seek (msec)
22 (typical); 24 (max)
Startup current 5V (typical)
1.0 amps
Seek power (typical)
2.0 watts
Read/write power (typical)
Read: 2.0 watts; Write: 1.8 watts
Idle mode (typical, low power)
0.8 watts
Standby mode
0.2 watts (typical)***
Sleep mode
0.2 watts (typical)***
Voltage tolerance (including noise)
5V ± 5%
Ambient temperature
0° to 40°C (operating), –40° to 70°C (nonoperating)
Duty 50%, Power-on Hours (POH): 8760/year
Temperature gradient
(°C per hour max, noncondensing)
20°C (operating)
30°C (nonoperating)
Relative humidity
(noncondensing)
5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient
30% per hour max
Wet bulb temperature (°C max)
30°C (operating)
38°C (nonoperating)
Altitude, operating
–304.8 m to 3,048 m (–1000 ft to 10,000 ft)
Altitude, nonoperating (below mean sea level)
–304.8 m to 12,192 m (–1,000 ft to 40,000 ft) max
Shock, operating (Gs max at 2 msec)
350
Shock, nonoperating (Gs max at 2 msec)
800