Seagate Enterprise Capacity 3.5 HDD v5.1 Product Manual, Rev. D
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2.11
Reliability
2.11.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF)
The production disk drive shall achieve an annualized failure-rate of 0.44% (MTBF of 2,000,000 hours) over a 5 year service life when
used in Enterprise Storage field conditions as limited by the following:
• 8760 power-on hours per year.
• HDA temperature as reported by the drive <= 40°C
• Ambient wet bulb temp <= 26°C
• The AFR (MTBF) is a population statistic not relevant to individual units
• ANSI/ISA S71.04-2013 G2 classification levels and dust contamination to ISO 14644-1 Class 8 standards (as measured at the device)
The MTBF specification for the drive assumes the operating environment is designed to maintain nominal drive temperature and
humidity. The rated MTBF is based upon a sustained drive temperature of up to 122°F (40°C) and wet bulb temperature up to 78.8°F
(26°C). Occasional excursions in operating conditions between the rated MTBF conditions and the maximum drive operating
conditions may occur without significant impact to the rated MTBF. However continual or sustained operation beyond the rated
MTBF conditions will degrade the drive MTBF and reduce product reliability.
2.12
Agency and Safety Certifications
Each Hard Drive and Solid State Drive ("drives") has a product label that includes certifications that are applicable to that specific
drive. The following information provides an overview of requirements that may be applicable to the drive.
2.13
Safety certification
These products are certified to meet the requirements of UL/cUL 60950-1, EN 60950-1, and may also include, IEC 62368, UL 62368
and EN 62368.
2.13.1 European Union (EU) CE Marking Requirements
Drives that display the CE mark comply with the European Union (EU) requirements specified in the Electromagnetic Compatibility
Directive (2014/30/EU) put into force on 20 April 2016. Testing is performed to the levels specified by the product standards for
Information Technology Equipment (ITE). Emission levels are defined by EN 55032:2012, Class B and the immunity levels are defined
by EN 55024:2010.
The drives also meet the requirements of The Low Voltage Directive (LVD) 2014/35/EU.
Seagate drives are tested in representative end-user systems. Although CE-marked Seagate drives comply with all relevant
regulatory requirements and standards for the drives, Seagate cannot guarantee that all system-level products into which the drives
are installed comply with all regulatory requirements and standards applicable to the system-level products. The drive is designed
for operation inside a properly designed system (e.g., enclosure designed for the drive), 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 the system-level products.
For compliance with the RoHS "Recast" Directive 2011/65/EU (RoHS 2),
See Section 2.14.1 on page 18 .
Nonrecoverable read errors
1 per 10
15
bits read, max
Annualized Failure Rate (AFR)
0.44% (nominal power, 40°C case temperature)
Load unload cycles
600,000 cycles
Rated Workload
Average rate of <550TB/year
The MTBF specification for the drive assumes the I/O workload does not exceed the Average Annu-
alized Workload Rate of <550TB/year. Workloads exceeding the annualized rate may degrade the
drive MTBF and impact product reliability. The Average 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:
http://www.seagate.com/support/warranty-and-replacements/
.
From this page, click on the “Check to see if the drive is 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.
Preventive maintenance
None required.
