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Momentus 5400.2 SATA Blade Server Product Manual, Rev. B
Track-to-track seek time
(msec typical)
1.0 (read), 1.5 (write)
Average seek, read (msec typical) 12.5
Average seek, write (msec typical) 14.5
Seek power (typical) 2.20 watts
Read/write power (typical) Read: 1.90 watts; Write: 2.30 watts
Idle mode, low power (typical) 0.80 watts
Standby mode (typical) 0.28 watts**
Sleep mode (typical) 0.28 watts**
Voltage tolerance (including noise) +5.0V ± 5%
Ambient temperature 5° to 55°C (operating), –40° to 70°C (nonoperating)
Temperature gradient
(°C per hour max)
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
(°C max)
30 (operating)
40 (nonoperating)
Altitude, operating –304.8 m to 3,048 m
(–1000 ft to 10,000+ ft)
Altitude, nonoperating
(meters below mean sea level, max)
–304.8 m to 12,192 m
(–1000 ft to 40,000+ ft)
Shock, operating (Gs max at 2 msec) 250
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 1.0 G (0 to peak, 5–500 Hz)
Vibration, nonoperating 5 Gs (0 to peak, 5–500 Hz)
Drive acoustics, sound power (bels)
Idle*** 2.4 (typical)
2.6 (max)
Performance seek 2.9 (typical)
3.1 (max)
Nonrecoverable read errors 1 per 10
14
bits read
Annualized Failure Rate (AFR) 1.74% at maximum case temperature of 40°C and 8,760 power on hours (POH).
Service life 5 Years
Warranty 5 years on distribution units.
To determine the warranty for a specific drive, use a web browser to access the
following web page:
www.seagate.com/support/service/
From this page, click on the “Verify Your Warranty” link. You will be asked to pro-
vide the drive serial number, model number (or part number) and country of pur-
chase. The system will display the warranty information for your drive.
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
Supports Hotplug operation per SATA II specification Yes (requires COMPRESET from host after a hotplug event)
Table 1: Drive specifications
Drive specification ST9120821SB ST9100824SB ST98823SB ST96812SB ST94813SB