And this this little clarification was all that it took to understand this, thanks.Said another way, SD cards have microcontrollers built in that already check for bad flash cells and swap in a reserve of good ones.Continuing to use it is a bad idea. Bad sectors appearing on flash media usually means its exceeded its lifetime writes or about to fail.And if fail occurs wouldn't it be possible to perform an entire mem address test to verify all writable bytes and enables an option to stop using bad sectors with lowered capacity instead?
Theoretically, when the flash degrades to the point there are no reserve cells, the microcontroller will place the card in read-only mode to preserve the data. Thus, you will seldom find a writable SD card with bad sectors as they quickly go read only
Statistics: Posted by DirectXNinja — Fri Oct 11, 2024 6:59 am