Nobody ever worries about how much is written to an hdd, just that in time it fails. Volume written is really the least important parameter to judge by. In simple terms, backup regularly and monitor performance and replace drive when it fails, or write issues are getting high. You must always make sure data is backed up as ANY drive can fail at ANY time regardless of data write levels. That is just one source of failure - far more likely failures are things like failure of interface electronics (quality of components, over heating etc.). a sort of recognition that real life expectancies are far different to nominal vendor guarantees.Īlso, bear in mind that very few drives fail due to the writing level. CrystalDiskMark is an open source disk drive benchmark tool for Microsoft Windows from Crystal Dew World. The Smart parameter does not actually stop at 0 but can go as low as -255 i.e. Sure statistically, some drives will fail early (hence low vendor guarantees - not exactly a scam but rather misleading). Many tests have been done that show most drives last much longer by as much as 2 or 3 times (or more). Vendors set this figure artificially low (thus avoiding ever having to pay out on a guarantee).

This figure is simply the ratio of writes versus a nominal vendor guarantee. ^_^ i will keep use it until -50% i think lol since this is old laptop z830 (second spec) There is no real reason to even worry at even 50%.

Ssd disk mark