Consumer-grade SSDs actually last a hell of a long time

Ars Technica:

How long, exactly, do SSDs last?

It’s a difficult question to answer because estimating an SSD’s life requires taking a whole lot of factors into consideration—type and amount of NAND used in the drive, overall write amplification, read/write cycle, and more. TechReport…has been subjecting six drives to a long-term torture test to actually measure, rather than estimate, the drives’ service life.

The results are impressive: the consumer-grade SSDs tested all made it to at least 700TB of writes before failing.

The long term viability of SSDs has always been a concern so it’s good to see reports like this coming out that may put some of those to rest. The speed improvements of SSDs are definitely worth it.



  • James Hughes

    How does this compare to standard hdd’s?

    • http://sxysrvy.com/ Mark D Wolinski

      Backblaze did a study on their hard drive failure rate.

      http://blog.backblaze.com/2013/11/12/how-long-do-disk-drives-last/

      Realize, these are drives that are constantly spinning and hard to compare to the metric the original article uses, however, not quoted above, the tests they were doing took almost a year of constant writing to produce some failures and there are still SSD drives working with over a PB of data written to them so far.

      Yes, HDs last longer, but I don’t think anyone is surprised by that. As Steve Balmer said at a conference once, “Backups! Backups! Backups!” (I may be misquoting him :-).