Thread: Looking for the best premium e-reader
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Old 07-07-2023, 12:34 PM   #97
Quoth
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Quote:
Originally Posted by DNSB View Post
And once again, the spare blocks are not visible as part of the storage space. The on-board controller takes care the logical to physical translation to spread the writes across the entire erase pool in hopes of preventing premature failure.
Yes. it's hidden inside the Flash chip. Not even in the SD card interface, which can have two Flash chips on the full size cards. The Flash chips soldered on iPhone, iPad, Kobo, Kindle, android phone Mobos are the same technology as the chips inside an SD Card r USB memory stick. Only higher grade SSDs use different technology. The enterprise SSDs can have 25 complete writes a day for 5 years now. The cheap consumer Flash chips on SD cards and gadget Mobos don't have as much reserved space but they all have a built in controller. You can't see that reserved space with any tool, it's not spare visible partitioned space that's not formatted.

A bigger issue today than endurance can be the block erase speed.
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