Warranty; Data Loss Under Power Interruption With Write Cache Enabled; Storage; Agency Certification - Seagate SKYHAWK ST4000VX005 Product Manual

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2.11

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 "Is my Drive under Warranty". Users will be asked to provide the drive serial number, model
number (or part number) and country of purchase. The system will display the warranty information for the drive.

2.11.1 Data loss under power interruption with write cache enabled

Drive preserves its data during all operations except in cases where power to the drive is interrupted during write
operations. This could result in either an uncorrected data error being reported, or the entire sector/track becoming
unreadable. This can be permanently recovered by rewriting to the same location on the drive. Additionally any data
present in the DRAM buffer will not be written to the disk media, additionally, the drive will not be able to return the
original data.
In order to prevent this data loss, the host should issue a standby immediate or flush cache command before a controlled
power off operation to the drive.

2.11.2 Storage

Maximum storage periods are 180 days within original unopened Seagate shipping package or 60 days unpackaged
within the defined non-operating limits (refer to environmental section in this manual). Storage can be extended to 1 year
packaged or unpackaged under optimal environmental conditions (25°C, <40% relative humidity non-condensing, and
non-corrosive environment). During any storage period the drive non-operational temperature, humidity, wet bulb,
atmospheric conditions, shock, vibration, magnetic and electrical field specifications should be followed.
2.12

Agency certification

2.12.1 Safety certification

These products are certified to meet the requirements of UL60950-1, CSA60950-1 and EN60950 and so marked as to the
certify agency.
The following regulatory model numbers represent all features and configurations within the series:
SKR002: 1/2D (4TB ~ 1TB Models)
SKR004: 3/4D (8TB & 6TB Models)

2.12.2 Electromagnetic compatibility

Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Electromagnetic
Compatibility Directive 2014/30/EU. Testing is performed to the levels specified by the product standards for Information
Technology Equipment (ITE). Emission levels are defined by EN 55032, Class B and the immunity levels are defined by EN
55024.
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.
Seagate SkyHawk Product Manual, Rev. C
Drive Specifications
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