Chia, the new crypto-currency that relies on storage as proof-of-work to obtain, rather than processing power, is already causing widespread failures of storage devices that have a finite write endurance, according a report by Chinese tech publication MyDrivers. We've detailed how Chia farming works in an older article. Farming it (i.e. participating in the network that keeps the crypto-currency running, in exchange for the currency itself), takes a toll on your storage device. NAND flash-based devices, such as SSDs and USB flash drives, can be re-written a finite number of times, described by manufacturers as "write endurance" and expressed as TBW (terabytes written), or DWPD (drive writes per day, a unit in which drive size is accounted for).

MyDrivers notes that Chia farmers in China are noticing that typical 256 GB SSDs barely last through 40 drive-write days, 80 days for 512 GB, and about 160 days for 1 TB. Endurance varies among the various SSD brands, and NAND flash type used. Since disk space, and not drive performance is paramount in farming Chia, and magnetic storage devices such as HDDs offer more re-writing, stocks of high-capacity HDDs, including those typically headed to the NVR and security surveilance markets, are being soaked up by Chia farmers.