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Momentus 5400.3 SATA Blade Server Product Manual, Rev. E
Average seek, read (msec typical) 11.0
Average seek, write (msec typical) 13.0
Average random seek (msec) 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: 1.9 watts; Write: 1.8 watts
Idle mode, low power (typical) 0.6 watts
Standby mode 0.2 watts (typical)**
Sleep mode 0.2 watts (typical)**
Voltage tolerance (including noise) +5.0V ± 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 5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient 30% per hour max
Wet bulb temperature
(max)
30°C (operating)
40°C (nonoperating)
Altitude, operating –304.8 m to 3,048 m (–1000 ft to 10,000 ft)
Altitude, nonoperating
(meters below mean sea level)
–304.8 m to 12,192 m (–1000 ft to 40,000 ft) max
Shock, operating (Gs max at 2
msec)
350
Shock, nonoperating (Gs max at 2
msec)
800
Shock, nonoperating (Gs max at 1
msec)
900
Shock, nonoperating (Gs max at 0.5
msec)
400
Vibration, operating (max displace-
ment may apply below 10 hz)
1.0 G (0 to peak, 5–500 Hz)
Vibration, nonoperating (max dis-
placement may apply below 22 hz)
5 Gs (0 to peak, 5–500 Hz)
Drive acoustics, sound power (bels)
Idle*** 2.4 (typical)
2.6 (max)
Performance seek 3.0 (typical)
3.2 (max)
Nonrecoverable read errors 1 per 10
14
bits read
Annualized Failure Rate (AFR) 1.79% at maximum case temperature of 40°C and 8,760 power on hours (POH).
Load/Unload (U/UL) cycles
25°C, 50% relative humidity
32°C, 80% relative humidity
5°C, 80% relative humidity
5°C, 10% relative humidity
55°C, 16% relative humidity
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
Table 1: Drive specifications
Drive specification ST9160821SB ST9120822SB ST9100828SB ST980815SB ST960815SB ST9402116SB