Date: Thu, 10 Oct 2024 19:46:15 +0200 From: Tomek CEDRO <tomek@cedro.info> To: Ralf Mardorf <ralf-mardorf@riseup.net> Cc: questions@freebsd.org Subject: Re: How to zero a failing disk drive before disposal? Message-ID: <CAFYkXjnJs07hdnOBAysCT1GTAH1_-Eeu-8ya1bzY1Y7vT_2yGQ@mail.gmail.com> In-Reply-To: <4d4886050a110040091998cc8b96323f1fa215db.camel@riseup.net> References: <5117.1728561469@segfault.tristatelogic.com> <ZwfG1Q0Qtb6IkHCd@pureos> <CAAdA2WNgKoxpb-=p1gMDyZ5XMZEMfz3_1uqPGNz1FhKs_csYnQ@mail.gmail.com> <4592b3d058a5c2c2c5acf752706ade1e4e1ed7ca.camel@riseup.net> <9ef03152-dce3-463e-b18f-842d6eae318b@FreeBSD.org> <4d4886050a110040091998cc8b96323f1fa215db.camel@riseup.net>
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On Thu, Oct 10, 2024 at 6:40=E2=80=AFPM Ralf Mardorf wrote: > On Thu, 2024-10-10 at 17:13 +0100, Matthew Seaman wrote: > > Steel that is hot enough to "fuse into a lump" will need to be > > significantly hotter than that -- nearly at the melting point. All of > > the magnetic information will have been wiped. > > Other ferromagnets useable for magnetic recording are going to behave > > similarly. > > you only need a morphogenetic field resonator to read data from a > demagnetised lump, see > https://static.spektrum.de/fm/912/f2000x857/245808923_pa.jpg ;). I have something like this somewhere in my basement.. we only need to make it pocket size now and battery powered plus the USB interface so it works on FreeBSD :D :D :D --=20 CeDeROM, SQ7MHZ, http://www.tomek.cedro.info
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