Life Expectancy & Reliability of HP Flash Drives
The life expectancy and reliability of all USB flash drives, including HP flash drives, depends on several factors, such as the technology the flash drive is using, the general wear and tear the drive faces on a daily basis and the manner in which the drive is used.
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Program Erase Cycles
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One of the major factors determining the potential longevity and reliability of any flash drive is the number of program and erase cycles that the drive can withstand. Program erase cycles, generally called P/E cycles, refer to writing information to the memory of the flash drive and then either writing over that information or erasing that information from the drive. So the method in which you use your flash drive will determine its longevity and reliability.
SLC Versus MLC
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Common flash storage technology comes in two varieties. Single-level cell, or SLC, and multi-level cell, or MLC. HP makes flash technology that uses both SLC and MLC technology, but modern flash drives generally use SLC technology. SLC drives can typically withstand up to 100,000 program erase cycles, while MLC devices can only withstand up to 10,000 program erase cycles. SLC technologies are considered to have much greater reliability and longevity.
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Other Factors
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Other factors for determining the life expectancy and reliability of your HP flash drive include environmental factors such as the humidity and temperature your flash drive is stored at, the care with which you treat your flash drive and the number of times you connect and disconnect your flash drive from a host device. A typical flash drive, including HP flash drives, can withstand up to 1,500 disconnect/connect cycles.
Considerations
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As of December 2008, manufacturers announced flash drives that are projected to withstand up to 1 million program erase cycles. As of 2011, drives with much longer life expectancies have been introduced, and some manufacturers offer five-year warranties. Although flash drives have finite life cycles and they will eventually degrade, most flash drives are lost, stolen or inadvertently destroyed before they fail from overuse.
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