| ▲ | IAmLiterallyAB 21 hours ago | ||||||||||||||||
To maximize device performance when wiping a drive to use for something else, I use nvme format with --ses=1. Which in theory should free all of the blocks on the flash. Really hard to find good documentation on this stuff. Doesn't help that 95% of internet articles just say "overwrite with zeroes" which is useless advice | |||||||||||||||||
| ▲ | yrro 17 hours ago | parent | next [-] | ||||||||||||||||
What's the difference between this and sanitize? Should we be doing both? [edit] sanitize runs on the controller level while format works on the namespace level. So I suppose formatting won't touch any pages not allocated to a namespace. I wish there was _any_ way to find out which NVME controllers supported which operation before you buy them! | |||||||||||||||||
| ▲ | jeffbee 21 hours ago | parent | prev [-] | ||||||||||||||||
Anything that works at the logical block interface will not usefully wipe the device. SES 1 will physically hit every erase block on the device with 20V to blow it away. This happens suspiciously quickly (< 60 seconds typically) but that's just because flash is great. | |||||||||||||||||
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