Seagate ST98823SB, ST96812SB, ST94813SB manual Load/Unload U/UL cycles 25C, 50% relative humidity

Table 1:	Drive specifications
Drive specification		ST9120821SB	ST9100824SB	ST98823SB	ST96812SB	ST94813SB
Track-to-track seek time		1.0 (read), 1.5 (write)
(msec typical)
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		20°C (operating)
(°C per hour max)		30°C (nonoperating)
Relative humidity		5% to 90% (operating)
		5% to 95% (nonoperating)
Relative humidity gradient		30% per hour max
Wet bulb temperature		30 (operating)
(°C max)		40 (nonoperating)
Altitude, operating		–304.8 m to 3,048 m
		(–1000 ft to 10,000+ ft)
Altitude, nonoperating		–304.8 m to 12,192 m
(meters below mean sea level, max)		(–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 1014 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		600,000 software-controlled power on/off cycles
32°C, 80% relative humidity		20,000 hard power on/off cycles
5°C, 80% relative humidity		600,000 software-controlled power on/off cycles
5°C, 10% relative humidity		20,000 hard power on/off cycles
55°C, 16% relative humidity
Supports Hotplug operation per SATA II specification		Yes (requires COMPRESET from host after a hotplug event)

4 Momentus 5400.2 SATA Blade Server Product Manual, Rev. B