Everyone is spouting TBW when percentage used is what manufacturer set to be the warranties lifetime. Go read the smart specs.
No one talking about NAND types (SLC,MLC,TLC,QLC) or one of the hybrid types (pSLC, iTLC, etc) which can be difference between 1k and over 100k P/E cycles.
My guess is this behaviour is (mostly) by design, using high bandwidth mass storage as some awesome high performance virtual memory.
Why are people complaining about 1-3% wear in 2 months when used as a dev machines, or running a hundred tabs in chrome? That’s still over 5 years usage within expected lifetime on very heavily used machines, and it could be even higher in reality.
It actually swaps much more than the older machine that I have, at 3% wear already. And the indicator isn't linear.
(at 30TB written currently, 250TB and the machine risks failure when estimating from a machine which actually failed from this already)
In those machines, Apple just uses TLC flash from Toshiba/Kioxia (off-the-shelf).
[+] [-] fsflover|5 years ago|reply
[+] [-] supermatt|5 years ago|reply
Everyone is spouting TBW when percentage used is what manufacturer set to be the warranties lifetime. Go read the smart specs.
No one talking about NAND types (SLC,MLC,TLC,QLC) or one of the hybrid types (pSLC, iTLC, etc) which can be difference between 1k and over 100k P/E cycles.
My guess is this behaviour is (mostly) by design, using high bandwidth mass storage as some awesome high performance virtual memory.
Why are people complaining about 1-3% wear in 2 months when used as a dev machines, or running a hundred tabs in chrome? That’s still over 5 years usage within expected lifetime on very heavily used machines, and it could be even higher in reality.
[+] [-] my123|5 years ago|reply
In those machines, Apple just uses TLC flash from Toshiba/Kioxia (off-the-shelf).
There's already some pathological cases where the drive actually died from this: https://twitter.com/lunixbochs/status/1366209143824998405?s=...
For some reason, it goes crazy after about a week and a half of uptime in desktop use, after which it starts thrashing the SSD at a crazy rate.
The 256GB model of the 980 Pro, a top-of-the-line TLC SSD is rated at just 150TBW.
[+] [-] anfilt|5 years ago|reply
I think thats also part of the problem. You have a device that wears out, but basically is unserviceable.
[+] [-] foerbert|5 years ago|reply
[+] [-] rasz|5 years ago|reply
2 real SSD warranties are actually specified in TBW.
[+] [-] kingnothing|5 years ago|reply
[+] [-] wil421|5 years ago|reply
[+] [-] jonplackett|5 years ago|reply
[+] [-] withinboredom|5 years ago|reply
My phone does that, I’m not surprised the desktop version does it too...
[+] [-] trestenhortz|5 years ago|reply
[+] [-] rasz|5 years ago|reply