Reliability; Free Fall Protection Feature - Seagate ST9500421AS Product Manual

Test
Electrostatic discharge
Radiated RF immunity
Electrical fast transient
Surge immunity
Conducted RF immunity
Power Frequency H-field
immunity
Voltage dips, interrupts
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
0G sensor mounted on the printed circuit board assembly (PCBA) to sense this event.
Momentus 7200 FDE.2 SATA Product Manual, Rev. A
Description
Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV
80 to 2,000 MHz, 10 V/m,
80% AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse modulation @ 200 Hz
± 1 kV on AC mains, ± 0.5 kV on external I/O
± 1 kV differential, ± 2 kV common, AC mains
150 kHz to 80 MHz, 3 Vrms, 80% AM with 1 kHz
sine
1 A/m, 50Hz/60Hz, 3 axes
30% Reduction for 25 cycles
>95% Reduction for 250 cycles
>95%, 0.5 cycles
Specification
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
Important: When returning a drive for warranty support, if possible, you should
provide the valid ATA Master password, or return the drive in the Security Erased
state with the User Data Area accessible.
If these recommendations are not followed, Seagate cannot access the drive to
perform failure analysis to verify your warranty claim.
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.
Performance Reference
level standard
B EN 61000-4-2: 95
A EN 61000-4-3: 96
ENV 50204: 95
B EN 61000-4-4: 95
B EN 61000-4-5: 95
A EN 61000-4-6: 97
A EN 61000-4-8: 97
C EN 61000-4-11: 94
C
B
15