Reliability; Free Fall Protection Feature - Seagate ST9750423AS Product Manual

2.13 R
ELIABILITY
M
EASUREMENT 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 0G sensor mounted on the printed circuit board assembly (PCBA) to sense this
event.
To enable the Free Fall Protection feature on ST9750423ASG, ST9750420ASG, ST9640423ASG and ST9500423ASG 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. The Free Fall Protection feature is provided only on ST9750423ASG, ST9750420ASG, ST9640423ASG and
ST9500423ASG models.
M P M
OMENTUS RODUCT ANUAL
S
PECIFICATION
14
1 per 10 bits read, max.
0.5%
600,000 software-controlled power on/off cycles
50,000 hard power on/off cycles
600,000 software-controlled power on/off cycles
50,000 hard power on/off cycles
To determine the warranty for a specific drive, use a web browser to access the
following web page:
http://www.seagate.com/support/warranty-and-returns
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.
, R . F
EV
15