Just ran across this thread, nobody mentioned Steve Gibson's Spinrite?
Hm-m-m ... haven't tried SpinRite for many a year. But I'm doubtful that it'd do anything more than the tools mentioned. It was developed for an older HD technology, when software could actually have an effect on the hardware.
Recently, the HD in a Dell laptop started giving problems (different thread, hardly worth quoting here). I tried several HDD assurance/measurement/analysis utilities, some free, some paid. All gave different results save for one (1) thing: each predicted the imminent death of that drive.
I pulled the drive, plugged it into a USB to IDE & SATA connector
. I reran each of those tools. Every one (1) gave the drive a clean bill of health, predicting a longer life-span than I'm likely to have.
Do you see a problem here? The analysis software reported differently according to the environment
. That same drive is sitting on my desktop unenclosed, has been churning merrily along ever since. Nary a hiccough. Haven't had glitch one (1) with it.
(There's another drive, a 3.5", that I housed for desktop usage ~seven (7) years ago. It failed
in a tower case. I removed it, housed it (USB1), re-housed it (USB2) a couple of years later, and it has been running ever since, well beyond the projected lifespan. However it is beginning to get noisy - I think bearings are about to die, and that will
For my money, none of these analysis programs are worth more than a fortune cookie. Change the environment, and they give totally different results. I have no idea if the failing is in their reading of the S.M.A.R.T. data, or mayhap with the S.M.A.R.T. data itself, or even with the general concept/implementation.
Ditching hardware because of analytics is usually quite wasteful, often unwarranted, and very unsatisfying. And it's very seldom educational in the process - frustrating, but not educational.
Point of all this is that, barring known physical damage, e.g.
gravitational stress, .357 magnum, or the like
, it borders on foolishness to discard a drive based upon any
diagnostic: reallocate, yes; discard, no.