Reliability; Free Fall Protection Feature - Seagate MOMENTUS ST9120315AS Product Manual

2.13

Reliability

Measurement type
Nonrecoverable read errors
Annualized Failure Rate (AFR)
Load/Unload (U/UL)
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
Warranty
2.13.1

Free Fall Protection feature

The Free Fall Protection feature provides enhanced data protection against shock events that may occur while
the drive is operating. This feature is designed to decrease the likelihood of data loss by detecting a free fall
event and unloading the actuator before a shock takes place in falls of >8 inches (nominal). The drive uses a 0
G sensor mounted on the printed circuit board assembly (PCBA) to sense this event.
To enable the Free Fall Protection feature on ST9500325ASG, ST9320325ASG, ST9250315ASG,
ST9160314ASG, ST9120315ASG and ST980313ASG models, use Set Features command 41h. To disable
this feature, use Set Features command C1h.
Information about Free Fall Events that have occurred is available through SMART attribute FEh.
Note. Of the models documented in this product manual, the Free Fall Protection feature is provided only
on ST9500325ASG, ST9320325ASG, ST9250315ASG, ST9160314ASG, ST9120315ASG, and
ST980313ASG models.
Momentus 5400.6 SATA Product Manual, Rev. E
Specification
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1 per 10 bits read, max.
<0.48%
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
To determine the warranty for a specific drive, use a web browser to access the
following web page:
support.seagate.com/customer/warranty_validation.jsp
You will be asked to provide the drive serial number, model number (or part num-
ber) and country of purchase. After submitting this information, the system will dis-
play the warranty information for your drive.
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