Comment by dist-epoch
2 years ago
Manufacturers offer that, in the form of TLC drives. Which are supported, unlike this hack which might cause data loss.
This gives you 120GB with 4000TB write endurance, but you can buy a 4TB TLC drive with 3000TB write endurance for $200.
Then you could use this technique to achieve something like a 1.2TB disk with 40PB TBW?
I’d be fascinated to hear any potential use cases for that level of endurance in modern data storage.
> use cases for that level of endurance in modern data storage.
All flash arrays. Saying that, as I have a bunch of smaller (400GB) 2.5" SAS SSDs combined into larger all-flash arrays, with each one of those SSD's rated for about 30PB of endurance.
I'm expecting the servers to be dead by the time that endurance is exhausted though. ;)
Exactly, I’ve done similar maths on my disks, and realised that it would be 20 years before they approach their end of life.
By which point, they will be replaced for some new tech that will be cheaper, faster and more reliable and power efficient.
Which drive would that be? The ones I'm seeing cost a lot more than $200.
My friend picked up a 3.84 TB Kingston SEDC600M with 7 PB of write endurance on sale for $180 a couple of months ago. That same place now sells them for around $360. Definitely an original drive. Maybe you just have to be on the lookout for one for when they go on sale.
SSD prices fluctuate a lot. I recently bought 4TB SSDs for 209eu but they are more expensive now (SNV2S/4000G, QLC though)
I'll second that question!