News for hackers. Stuff that matters.

A comment on The unpowered SSDs in your drawer are slowly losing your data. Parent comment

Re:The unpowered SSDs in your drawer are slowly losing your ... by bullen on Tuesday November 25, 2025 @01:54AM (#46043041)
Ok, so all bits have to be rotated, even when powered on, to not loose their state?

Edit: found this below: "Powering the SSD on isn't enough. You need to read every bit occasionally in order to recharge the cell."

Hm, so does the firmware have a "read bits to refersh them" logic?

[ Parent | on HN ]
Re:The unpowered SSDs in your drawer are slowly losing your ... by ACCount37 on Tuesday November 25, 2025 @02:06AM (#46043108)
Kind of. It's "read and write back" logic, and also "relocate from a flaky block to a less flaky block" logic, and a whole bunch of other things.

NAND flash is freakishly unreliable, and it's up to the controller to keep this fact concealed from the rest of the system.

[ Parent | on HN ]