SSD v/s HDD Lifespan
A number of factors influence the lifespan of SSDs and HDDs, including humidity and the effect of metals oxidizing inside in the drives. Data on both types of media will degrade over time, with HDDs generally supporting a higher number of drive writers per day.
As noted, the moving parts of HDDs increase the chance of failures. To compensate, HDD manufacturers will add shock sensors to protect drives and other components inside personal computing devices. This type of sensor uses piezoresistors to detect if the machine is about to fall and will then take steps to shut down the HDD and related critical hardware.
Heat exposure is another factor affecting a drive's life, especially for SSDs. Industry experts recommend storing unused or idle SSDs at low temperatures to extend their life. When an SSD operates at high temperatures for a sustained period of time, it can contribute to electrons leaking from the NAND flash memory.
Flash supports a limited number of drive writes per day. The level of data retention decreases as more and more data is written to the flash cells. Enterprise SSDs are engineered with greater endurance than consumer SSDs.
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