Luke S Crawford wrote: > Doug Hughes <[email protected]> writes: > > >> Well, swapping the electronics will not help anybody. A modern drive is >> carefully factory calibrated with its particular electronics and heads. >> There is nothing that you can swap between drives to make them useful. >> > > Actually, with consumer-grade sata, swapping the drive electronics > (between drives of the same model, of course) works far more often than > it does not, in my experience. Now, it's not something I'd /depend/ on, > just 'cause manufacturers change things mid-run, but it is one of the > things I try when I'm doing data recovery. Last time I had to do > that sort of thing, swapping the electronics didn't fix it, but to verify > it wasn't something on the PCB we moved the PCB from the bad disk to a good > disk just like it, and the good disk still appeared to work. > > (we ended up fixing the drive by sticking it in the freezer for a few hours; > it worked long enough for us to get the data off of it. That was maybe > three years ago.) > You're right. I confused secure erasing (which no longer requires many passes, even though it remains part of the common cargo-cult lore), with recovery under normal circumstances. It is plausible, that normal non-erased data could be recovered with a controller change on different commonly used drive models of similar types.
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