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SSD Data Retention and Beyond

Retention time is the measure of the length of time that data can be stored on a solid state disk (SSD) without power. Any SSD purposed for industrial use should have a data retention span of 10 years when stored at 25 degrees Celsius. Adtron strives to exceed these standards by constantly testing and improving its flash SSD designs.

Adtron views testing of its flash SSD products as a continuous process and tests multiple drives dynamically for aging with high read and write activity at 65 degrees Celsius. Current tests for SSD write endurance are based on activation energies of flash drive components as predicted by Arrenhius equation and show life equivalents at 25 degrees Celsius over 50 years with no hard failures.

This testing process should be repeated during every transition in technology to ensure a long SSD life. Assumptions about disk specifications should not be made; instead full qualification testing should be undertaken after every process change.

Solid state flash disks used in industrial and military applications must be held to higher standards than disks that will be used for consumer products. MIL-STD-810F standards provide a the foundation for flash disk durability and environmental testing. Construction techniques using solid design based on the established flash component quality and management techniques help to ensure the availability of mission critical data stored on these disks. Ultimate validation and testing for flash SSDs takes place in the life testing and field life, but through the use of accelerated testing failure rates can be, and are, continually improved upon based on experience. As flash disk Adtron continues to learn and make improvements the data retention and life of SSDs will continue to improve.

To find out more about Adtron flash disks contact us today.