Using tmpfs avoids disks TBW?

[cayolblake]

If I use tmpfs for temp 1 and 2, does this mean no temp IO on the disk occurs unless it’s doing the final write?

[cyperbg]

If you use tmpfs for Temp 1 and 2 then no nvme is involved at all, so no writes to it obviously.

[cayolblake]

So how many Terabytes written for temp 1 and temp 2 separately?