Seagate Exos 7E8 Serial ATA Product Manual, Rev. A
16
2.10
Reliability
2.10.1 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
• Typical workload
• 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. 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..
2.11
Agency and Safety Certifications
2.11.1 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.
2.11.2 Electromagnetic compatibility
2.11.3 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 2.12.1.1 on page 18 .
2.11.4 Australian RCM Compliance Mark
If these models have the RCM marking, they comply with the Australia/New Zealand Standard AS/NZ CISPR32 and meet the Electromagnetic
Compatibility (EMC) Framework requirements of the Australian Communication and Media Authority (ACMA).
Nonrecoverable read errors
1 per 10
15
bits read, max
Load unload cycles
600,000 cycles
Maximum Rated Workload
Maximum rate of <550TB/year
Workloads exceeding the annualized rate may degrade the drive MTBF and impact prod-
uct reliability. The 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
http://www.seagate.com/support/warranty-and-replacements/
.
From this page, click on the “Is my Drive 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.
