Seagate ST9120315AS ユーザーズマニュアル
M
OMENTUS
5400.6 SATA P
RODUCT
M
ANUAL
, R
EV
. G
18
2.13
R
ELIABILITY
M
EASUREMENT TYPE
S
PECIFICATION
Nonrecoverable read errors
1 per 10
14
bits read, max.
Annualized Failure Rate (AFR)
<0.48%
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
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
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
Warranty
For information regarding Warranty Support, visit:
http://www.seagate.com/support/warranty-and-returns
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.
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.
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.
ST9500325ASG, ST9320325ASG, ST9250315ASG, ST9160314ASG, ST9120315ASG, and ST980313ASG
models.
2.14
A
GENCY CERTIFICATION
2.14.1 Safety certification
The drives are recognized in accordance with UL 1950 and CSA C22.2 (950) and meet all applicable sections of IEC950 and
EN 60950 as tested by TUV North America.
EN 60950 as tested by TUV North America.
2.14.2 Electromagnetic compatibility
Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Electromagnetic
Compatibility Directive (89/336/EEC). Testing is performed to the levels specified by the product standards for Information
Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and the immunity levels are defined by EN
55024.
Compatibility Directive (89/336/EEC). Testing is performed to the levels specified by the product standards for Information
Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and the immunity levels are defined by EN
55024.
Seagate uses an independent laboratory to confirm compliance with the EC directives specified in the previous paragraph.
Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply with the directives when
used in the test systems, we cannot guarantee that all systems will comply with the directives. The drive is designed for
operation inside a properly designed enclosure, with properly shielded I/O cable (if necessary) and terminators on all unused
I/O ports. Computer manufacturers and system integrators should confirm EMC compliance and provide CE marking for their
products.
Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply with the directives when
used in the test systems, we cannot guarantee that all systems will comply with the directives. The drive is designed for
operation inside a properly designed enclosure, with properly shielded I/O cable (if necessary) and terminators on all unused
I/O ports. Computer manufacturers and system integrators should confirm EMC compliance and provide CE marking for their
products.