Apple SSD Longetivity

[Mirai]

Based on my use case, with 24 TB written so far and 1% down on the lifetime left indicator, it appears the Apple 1 TB has a TBW (TB Written) rating of 2,400 TB. That's the SSD which comes with Apple Silicon MBPs.

DriveDx:

 

[bwana]

 

[PhireSide]

 

[Mirai]

View attachment 1863868

That one's interesting. It seems that in the first two cases 1% about 24 TB written on 1 TB. Here it's 148TB and no percentage decrease. Maybe for that drive DriveDx does not have a proper way of reading/understanding whatever metadata it is presented with or maybe it's an MLC or SLC drive vs 1 TB TLCs.

 

[PhireSide]

That one's interesting. It seems that in the first two cases 1% about 24 TB written on 1 TB. Here it's 148TB and no percentage decrease. Maybe for that drive DriveDx does not have a proper way of reading/understanding whatever metadata it is presented with or maybe it's an MLC or SLC drive vs 1 TB TLCs.

Huh? Not sure I follow. It shows 90% lifetime on the pic I posted after 148TBW

 

[bwana]

Huh? Not sure I follow. It shows 90% lifetime on the pic I posted after 148TBW

I'd like to know what that number is based on.

Do you think any of that is due to having what, 8gb of ram?

 

[Mirai]

Huh? Not sure I follow. It shows 90% lifetime on the pic I posted after 148TBW

Sorry I was mistaken.

 

[Mirai]

DriveDx says it's a vendor specific estimate of the percentage of SSD life left based on the "actual usage and the manufacturer's prediction of SSD life"

And this: https://binaryfruit.com/drivedx/help#ui-drive-health-dashboard-ssd-lifetime-left

 

[PhireSide]

I remember how people were concerned about SSD life and the SSD's being soldered on.

At this rate, it will be another 5 years before I reach 80% life, and I have been pretty hard on this SSD from the get go. So realistically, 25 years before you reach the halfway point on the drive life by which time the entire machine will be ewaste in any case.

 

[Mirai]

I remember how people were concerned about SSD life and the SSD's being soldered on.

At this rate, it will be another 5 years before I reach 80% life, and I have been pretty hard on this SSD from the get go. So realistically, 25 years before you reach the halfway point on the drive life by which time the entire machine will be ewaste in any case.

In your 256GB case it's looks like 1,500TB is the TBW for your drive which is huge. Funny how the 1TBs aren't 4 times that as is usually the case with SSDs of increasing capacities. But then again DriveDx may also not be too accurate.

It's still cool to know. I know the old MBP Samsung 830 drives in the 2012 MBPs went into Petabytes. MLC tech.

Samsung 850 Pro went into 9.1 Petabytes!

Endurance Test of Samsung 850 Pro Comes To an End after 9100TB of writes

Yes, tso hat is 9.1 Petabyte of data written. Good lord. The German colleagues from c't have ended their SSD endurance tests after the last SSD decided to go belly up. ...

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