From nobody Thu Oct 10 21:33:08 2024 X-Original-To: questions@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XPjff47bzz5YgvD for ; Thu, 10 Oct 2024 21:33:14 +0000 (UTC) (envelope-from ralf-mardorf@riseup.net) Received: from mx0.riseup.net (mx0.riseup.net [198.252.153.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "mx0.riseup.net", Issuer "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XPjff0WhLz4gKm for ; Thu, 10 Oct 2024 21:33:14 +0000 (UTC) (envelope-from ralf-mardorf@riseup.net) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=riseup.net header.s=squak header.b=cTsA4au8; spf=pass (mx1.freebsd.org: domain of ralf-mardorf@riseup.net designates 198.252.153.6 as permitted sender) smtp.mailfrom=ralf-mardorf@riseup.net; dmarc=pass (policy=none) header.from=riseup.net Received: from fews02-sea.riseup.net (fews02-sea-pn.riseup.net [10.0.1.112]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx0.riseup.net (Postfix) with ESMTPS id 4XPjfc5xdWz9sSK for ; Thu, 10 Oct 2024 21:33:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=riseup.net; s=squak; t=1728595992; bh=NMTwS47TYDYXcHGHy81sGXUiiMSGY6CBDKZPs+ruvJE=; h=Subject:From:To:Date:In-Reply-To:References:From; b=cTsA4au8scpWL1jk2KFWuJjcBRLqqNX29MFpmF775eG7PTkE0gekf4CMtByCwPrEM 3Tagl1EO+q3G60yn4yiUiv7omoLJe8iq9D9tEbBQ3/PaExc9eS32HKl17QTWrrIH5a oV5Bo9924EkecpqIjavyuAcLv7AVXf51G0dScaNA= X-Riseup-User-ID: 05A3557D8E02A084D888CA41F0ADF3E0248EC4932F9EC707CFBEA83158BCBE28 Received: from [127.0.0.1] (localhost [127.0.0.1]) by fews02-sea.riseup.net (Postfix) with ESMTPSA id 4XPjfc2sXKzFvk4 for ; Thu, 10 Oct 2024 21:33:12 +0000 (UTC) Message-ID: Subject: Re: How to zero a failing disk drive before disposal? From: Ralf Mardorf To: questions@freebsd.org Date: Thu, 10 Oct 2024 23:33:08 +0200 In-Reply-To: References: <5117.1728561469@segfault.tristatelogic.com> <4592b3d058a5c2c2c5acf752706ade1e4e1ed7ca.camel@riseup.net> <7de83c36-7ec5-4cf3-8e8d-4cad98d610b8@app.fastmail.com> <2D3640CE-2A76-4BBD-8906-AF7FAE02AA32@sermon-archive.info> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-questions@freebsd.org Sender: owner-freebsd-questions@FreeBSD.org MIME-Version: 1.0 X-Spamd-Result: default: False [-4.30 / 15.00]; DWL_DNSWL_LOW(-1.00)[riseup.net:dkim]; SUBJECT_ENDS_QUESTION(1.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.999]; DMARC_POLICY_ALLOW(-0.50)[riseup.net,none]; R_DKIM_ALLOW(-0.20)[riseup.net:s=squak]; R_SPF_ALLOW(-0.20)[+a:mx0.riseup.net]; RWL_MAILSPIKE_VERYGOOD(-0.20)[198.252.153.6:from]; RCVD_IN_DNSWL_LOW(-0.10)[198.252.153.6:from]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_ALL(0.00)[]; DKIM_TRACE(0.00)[riseup.net:+]; RCPT_COUNT_ONE(0.00)[1]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; ASN(0.00)[asn:16652, ipnet:198.252.153.0/24, country:US]; TO_DN_NONE(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; MISSING_XM_UA(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[questions@freebsd.org]; MID_RHS_MATCH_FROM(0.00)[]; MLMMJ_DEST(0.00)[questions@freebsd.org]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+] X-Rspamd-Queue-Id: 4XPjff0WhLz4gKm X-Spamd-Bar: ---- On Thu, 2024-10-10 at 23:07 +0200, Ralf Mardorf wrote: > The advantage of SSDs could be that the data is probably lost > relatively quickly if they have not been supplied with power for a > long time. Hearsay, therefore "quickly" vs "long time" :D AFAIK SSDs really do function in such a way that the actual storage space is significantly larger than the space available to the user. It would cost a secret service nothing, just a backdoor to access the whole space.