BackBlaze starts to report on SSD reliability, which they are bigtime.
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Noisiv
Lets forget for a moment that SSDs are pure electronics, while HDDs are mechanical devices spinning at thousands RPM and held together by PURE MAGIC.
Even without the above bleeding obvious fact and just relying on Backblaze stats I still wouldn't count on SSDs getting much worse down the line.
Why?
Because being only 1 year old on average, SSDs failure rates are negatively affected with the out-of-the-factory phenomena.
Basically some products are stillborns doomed from the very start, and will fail instantly or few months down the line.
Now that they have failed, what we are left with is a healthy population of SSDs. So that that 0.58% AFR for SSDs is not going to get much worse (if any) 12 months from now.
Astyanax
Noisiv
heffeque
nosirrahx
Its good that they are doing this because some people are still convinced that SSDs today have the same reliability as SATA 150 SSDs.
MonstroMart
schmidtbag
bathtub curve? In the case of SSDs, the "tub" is just really shallow, and drives that aren't "stillborn" have a reasonably predictable lifespan.
Well, the same is said of HDDs, or really anything electronic. Ever heard of the nosirrahx
Truder
Here's a question... Aren't HDDs repairable? As long as the disk isn't damaged, data can potentially be recovered in the event of failure and so drives can be repaired, presenting the option of still being reliable long term storage? (Often HDD failures are due to their controller boards or read/write heads). SSDs on the otherhand have predictable endurance, especially when considering the type of cells used? (QLC have what, 1000 writes per cell?) and over time cells become unreadable (of course the same can be said for hard drives too but that's usually a result of mechanical damage, heads literally damaging a sector for example). Still, I find non-volatile memory fascinating.
While we have here rates of failure over 4 years for HDDs and just 1 year for SSDs, what's to say that after 4 years, SSDs wouldn't fail at increasing rates?
GSDragoon
Not sure how useful this data is without running both types of drives with the same workload.
scoter man1
Isn't the analogy
"if the read/write head were a Boeing 747, and the hard-disk platter were the surface of the Earth:
The head would fly at Mach 800
At less than one centimeter from the ground
And count every blade of grass
Making fewer than 10 unrecoverable counting errors in an area equivalent to all of Ireland."
If that's true, I'd probably break a lot too. In comparison to angry pixies flying around (SSD).
fry178
@Noisiv
it will get worse. not after a year, but probably starts around 2-4y when memory/controller start aging.
at least that was previous data i've seen on ssds.
Ricepudding
Ricepudding
TheDeeGee
Meanwhile a 256GB SSD is dead after 40 days of Chia mining.
Noisiv
https://en.wikipedia.org/wiki/Bathtub_curve
well yeah, that's what we're saying
fry178
@Ricepudding
except your sample size is too small to be relevant.
and i didnt mean write cycles.
it starts around 2y (and up) where controller/chips would die, in numbers 10x of whats expected (~25% vs ~sub 3%).
Orion_13
Dumb question here, how did they calculate the AFR percentage?
Noisiv