Seagate Exos X20 SATA Product Manual, Rev. B
8
www.seagate.com
Drive specifications
*
One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and
formatting.
*
See
for rated MTBF device operating condition requirements.
Temperature gradient (°C per hour max)
20°C (operating)
20°C (nonoperating)
Relative humidity
5% to 95% (operating)
5% to 95% (nonoperating)
Relative humidity gradient
20% per hour max
Altitude, operating
–304.8 m to 3,048 m
(–1000 ft to 10,000+ ft)
Altitude, nonoperating
(below mean sea level, max)
–304.8 m to 12,192 m
(–1000 ft to 40,000+ ft)
Operational Shock (2 ms)
40 Gs
Non-Operational Shock (2 ms)
200 Gs
Linear Random Operating Vibration
5–500 Hz: 0.70 Grms
Random Rotary Operating Vibration
20–1500Hz: 12.5 rads/s²
Linear Random Non-Operating Vibration
2–500 Hz: 2.27 Grms
Drive acoustics, sound power (bels)
Idle
2.8 (typical)
3.0 (max)
During periods of drive idle, some offline activity may occur according to the
SMART specification, which may increase acoustic and power to operational levels
.
Performance seek
3.2 (typical)
3.4 (max)
Nonrecoverable read errors
1 sector per 10
15
bits read
Annualized Failure Rate (AFR)
0.35% based on 8760 POH
Maximum Rated Workload
Maximum rate of <550TB/year
Workloads exceeding the annualized rate may degrade the drive MTBF and impact product reli-
ability. The Annualized Workload Rate is in units of TB per year, or TB per 8760 power on hours.
Workload Rate = TB transferred * (8760 / recorded power on hours).
Warranty
To determine the warranty for a specific drive, use a web browser to access the following web
page:
www.seagate.com/support/warranty-and-replacements/
.
From this page, click on the “Is my Drive under Warranty” link. The following are required to be
provided: the drive serial number, model number (or part number) and country of purchase.The
system will display the warranty information for the drive.
Load-unload cycles
600,000
Supports Hotplug operation per
Serial ATA Revision 3.3 specification
Yes
Drive specification
ST20000NM007D,
ST20000NM000D
ST18000NM003D,
ST18000NM008D
