Initializing a disk from with GPT

Matthew Dillon dillon at
Tue Jan 31 19:00:25 PST 2023

Well, TRIM shouldn't be able to damage a SSD, particularly if you are
reinitializing it from scratch (throwing away everything that might have
been previously stored on it).   That said, its there as an option rather
than as the default precisely because it isn't a good idea to trust that a
block device will handle TRIM properly.  At least not SATA.  NVME is a
different matter... TRIM isn't an after-thought in the NVME protocol, it is
built into the standard as the WRITEZ command and must work properly.

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