Stacked memory in SSDs - Where are the large storage sizes?

[Kippa]

I thought that once 3D memory went stacked that we would start to see much larger sizes of SSDs like 6TB+. Are large SSDs like 6TB+ in the pipeline? All I see at the moment are lots of new SSDs saying that they are using 3D memory and there doesn't seem to be any increase in size.

 

[VirtualLarry]

3D NAND is not the same as die stacking during packaging.

 

[Glaring_Mistake]

Well, capacities are increasing since consumer drives with 2TB are becoming more common (or will be soon).
It's probably going to take a while for 6TB drives to become mainstream however.

 

[IronWing]

I guess I don't see much value in extremely large storage devices built on top of a technology where dead storage results in file corruption, at least in the consumer space. I can see large capacity SSDs being useful on servers with high churn. For consumer use, I'm having difficulty coming up with a use where drives would see enough rewrites to protect the data.

 

[Glaring_Mistake]

I guess I don't see much value in extremely large storage devices built on top of a technology where dead storage results in file corruption, at least in the consumer space. I can see large capacity SSDs being useful on servers with high churn. For consumer use, I'm having difficulty coming up with a use where drives would see enough rewrites to protect the data.

Are you talking about voltage drift?
Because how much of an effect that has will vary with the drive.

For example - here you have a 2D MLC NAND SSD I tested after it was powered down for four months:

Now it has admittedly seen little wear (though consumers don't really tend to put a lot of wear on their drives) and the drive was hot when the older folders were written.
However when the last folder was added the drive was quite cold instead, to see how much of an effect that would have (given that retention is going to be negatively impacted by that).
That result's not too shabby though, right?