12,000 TBW endurance, 2,500 TB writes per SMART, 100% health?

[zac1]

I just got a bunch of SM863 1.92TB SSDs that report 100% health with total host writes of 2457421 GB (~2457 TBW) according to CrystalDiskInfo. The SM863 1.92TB is rated for 12,320TBW. The math doesn't seem to check out.

I need to do more research but wanted to check: does anybody happen to have any insights on this?

 

[i386]

the rating is a "guesstimate" from the vendor/manufacturer (for market segementation?)
the health indicator is calculated by the firmware/ssd controller and how many reserved/overprovisioned nand is used instead of the normal "nand".

 

[zac1]

CrystalDiskInfo seems overly optimistic. HD Sentinel guesstimates ~93%.

 

[ano]

use samsung magician for DC, they will do the math right

 

[zac1]

use samsung magician for DC, they will do the math right

I'm planning to do that, but it requires a direct SATA connection. UASP doesn't seem to work, so I need to find an efficient way of going about it. I guess a half-open chassis with SATA cables sticking out is it.

 

[ano]

I'm planning to do that, but it requires a direct SATA connection. UASP doesn't seem to work, so I need to find an efficient way of going about it. I guess a half-open chassis with SATA cables sticking out is it.

this is the way, I have a machine for that in the lab.

I managed to get it working in supermicro expanders and such years ago when they were new and this was a hot thing... but... I cannot recreate it?! tried with a 9500, maybe I need an older HBA, its on the todo.

I a quantity of drives I need to check, and no 1:1 cabinets laying around