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I can't imagine a single reason you'd ever want to secure-erase any flash media used to store your music unless I suppose you were disposing of the drive permanently.
Any other time it would provide not only no benefit at all, it would use up an entire drive worth of write cycles.
Likewise recommended defragging (let alone frequent defragging) of a flash drive (especially one only being read from in general) is totally nonsensical.... again 0 benefit, and you reduce the life of the device.
So far I have tested this in situations of pulling it live and stopping it properly and the format of the drive remains intact because of its buffering technology.
sorry, but I'm not able to make any sense from that statement.
ungraceful dismount (if that is what you are referring to) is not something a drive can defend against. its entirely an issue with the host (the car).
what happens in drive writes is this: the computer buffers i/o and linux is very aggressive in keeping its disk buffers in memory instead of on 'hard disk' (media). it flushes periodically (something like every 30 seconds, but its configurable) and will flush if a CLOSE operation is requested by the user, but if you just pull the media out, if you are lucky and the flush i/o op happened before you pulled it out, you're good; but if you needed that buffer flush and the data was still in the host's memory, you just LOST your last few disk writes.
the drive can't help or hurt here, he's just the slave.
tesla could handle things better; there are ways to be more synchronous in its i/o and tesla could fix things if they wanted to.
but there is nothing we, as users, can do to work around their buffering, their (sometimes) crashing the usb disk (no unmount) and probably other hung processes inside tesla's system.
the problem is not the speed of the media. the problem is all tesla.
tl;dr: adding more layers of stuff to go thru (nvme bridge) is not going to help.....
Not to mention, the USB ports in the Model 3 are USB 2.0. So any speed of NVMe is totally wasted.
Wasted while it's plugged into the Tesla yes but.. There are other uses for a fast read speed. Like if you copy it to your desktop. And see my question about video freezing above.
The one thing I'm curious about relating to NVME drives is.. I'm noticing with my ssd, every minute at the end of the videos the video freezes for a few seconds. I wonder if it's because of the write speed of the ssd. So I wonder if NVME drives have less seconds of frozen video every minute because of the faster write speeds.
slightly OT, but hopefully useful: for those that run their own x86 motherboards, they have been available with nvme m2 sockets (usually just one) for a few years now. be sure you get one on the TOP of the motherboard, not below! below creates too much heat and the ssd will throttle when it gets too hot. a pci-e riser is also a good option and does not hurt anything (other than extra metal contacts).
the nvme mem chips get super hot. the speed is incredible and so, yes, they run very hot. expect that.
and that's one really good reason to NOT run them in cars. just not needed or rated for car environment, yet.
I wonder though if the drive wont get hot when its getting written to through the slow usb2