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I am planning to use some part of the GPT attributes to do some sanity check for an embedded system. It will update/rewrite the attribute for each boot. I am a bit worried that doing so may wear out the NAND chip in UFS quickly.

UFS drive seems to have wear-leveling mechanism internally but I am not sure if it works even for GPT or not. It seems okay but just wanted to double check!

Updated Feb 6, 2024: GPT is located at LBA-1. I want to know if re-writing GPT attributes always re-writes the same physical bits on the NAND chip, or it writes to bits in another location on the NAND. I am assuming it is the latter, am I correct?

hirop
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1 Answers1

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I want to know if re-writing GPT attributes always re-writes the same physical bits on the NAND chip, or it writes to bits in another location on the NAND. I am assuming it is the latter, am I correct?

It's probably safe to assume you're correct when using a modern NAND based drive. Also the drive does not care whether you update some text file somewhere on the drive or editing some data in the GPT.