From nobody Sat Jan 3 05:29:56 2026 X-Original-To: freebsd-chat@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 4djpzf2jwqz6MwCW for ; Sat, 03 Jan 2026 05:30:06 +0000 (UTC) (envelope-from teo.en.ming@protonmail.com) Received: from mail-106101.protonmail.ch (mail-106101.protonmail.ch [79.135.106.101]) (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 (4096 bits) client-digest SHA256) (Client CN "protonmail.com", Issuer "R13" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4djpzc5kblz4Fdx for ; Sat, 03 Jan 2026 05:30:04 +0000 (UTC) (envelope-from teo.en.ming@protonmail.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=protonmail.com header.s=protonmail3 header.b=Ww3mkKXI; dmarc=pass (policy=quarantine) header.from=protonmail.com; spf=pass (mx1.freebsd.org: domain of teo.en.ming@protonmail.com designates 79.135.106.101 as permitted sender) smtp.mailfrom=teo.en.ming@protonmail.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1767418201; x=1767677401; bh=Ma8fD2GNsA/23ogBEXZpKXE6GBNa54yqpa5l+6wAW1A=; h=Date:To:From:Cc:Subject:Message-ID:Feedback-ID:From:To:Cc:Date: Subject:Reply-To:Feedback-ID:Message-ID:BIMI-Selector; b=Ww3mkKXI7w58XrZZyyAZyejx7kL7TExmIxOrg3pT7tglnU5yVXf3EMJAe8jpsvWmA Y52sNMftQI4YDTTmfGbQrWh+L3eGQaGgwWwbC20cw1dJZ2jjzuSz60jDNjKYjaQvou ZnexkU8iEdIT+0H8CDoZI+SJ8d3r8cR37LZDyPTZEsXszsUFKM3d9IRispFnzN51lP O/1HewzBVwNy8ZXMC0QrigAB23ll1rzve7avgHXXe5y1l3I4VYGEHf1Kf+gSSpEALL s2kntpHZqulErww17GBegkysLQF3KR2j9TIKNLH4zEMXrUFk+uNQWQBhWgeCWwd5xk yIvU2lUQ14a4w== Date: Sat, 03 Jan 2026 05:29:56 +0000 To: "freebsd-chat@FreeBSD.org" From: Turritopsis Dohrnii Teo En Ming Cc: "ceo@teo-en-ming-corp.com" Subject: TeraCopy can be used to copy files even when the source harddisk has bad sectors (confirmed) Message-ID: Feedback-ID: 39510961:user:proton X-Pm-Message-ID: 7b872f0eaab85db9c22fac2e2760aa3ac21a55be List-Id: Non technical items related to the community List-Archive: https://lists.freebsd.org/archives/freebsd-chat List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-chat@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spamd-Bar: ---- X-Spamd-Result: default: False [-4.20 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.998]; DMARC_POLICY_ALLOW(-0.50)[protonmail.com,quarantine]; R_SPF_ALLOW(-0.20)[+ip4:79.135.106.0/24]; R_DKIM_ALLOW(-0.20)[protonmail.com:s=protonmail3]; RWL_MAILSPIKE_VERYGOOD(-0.20)[79.135.106.101:from]; MIME_GOOD(-0.10)[text/plain]; MIME_TRACE(0.00)[0:+]; MISSING_XM_UA(0.00)[]; ASN(0.00)[asn:62371, ipnet:79.135.106.0/24, country:CH]; FREEMAIL_FROM(0.00)[protonmail.com]; RCVD_IN_DNSWL_NONE(0.00)[79.135.106.101:from]; FREEMAIL_ENVFROM(0.00)[protonmail.com]; TO_MATCH_ENVRCPT_SOME(0.00)[]; ARC_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; MLMMJ_DEST(0.00)[freebsd-chat@FreeBSD.org]; FROM_HAS_DN(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_COUNT_ZERO(0.00)[0]; TO_DN_EQ_ADDR_ALL(0.00)[]; DKIM_TRACE(0.00)[protonmail.com:+] X-Rspamd-Queue-Id: 4djpzc5kblz4Fdx Subject: TeraCopy can be used to copy files even when the source harddisk h= as bad sectors (confirmed) Good day from Singapore, Recently I have THREE (3) units of Western Digital WD My Passport 4 TB USB = portable harddisks (model: WD40NDZW-11BCVS1) which developed bad sectors. A= ccording to Reddit and other forums (reported by ChatGPT), many many many u= sers reported Western Digital 4 TB USB portable harddisks developed bad sec= tors after a short period of use or have high failure rates. According to C= hatGPT, Seagate harddisks have an even higher failure rate compared to West= ern Digital harddisks. According to ChatGPT, internal SATA harddisks and NA= S harddisks have a much higher reliability than USB portable harddisks. ChatGPT artificial intelligence (AI) told me TeraCopy can be used to copy f= iles even when the source harddisk has bad sectors, while Windows File Expl= orer will stall or hang forever when it encounters files with bad sectors. = TeraCopy can be configured to skip files with bad sectors or corruption ins= tead of hanging there forever like Windows File Explorer. Unfortunately, I = didn't come across this configuration option in TeraCopy. Maybe I need to b= uy the Pro licensed copy of TeraCopy. Last night on 2nd Jan 2026 Friday, I have downloaded and installed TeraCopy= 3.17 from Microsoft Store on my Windows 11 home desktop computer. At about/approximately 10.53 PM on 2nd Jan 2026 Friday, I started/initiated= TeraCopy copy operation. By this time, TeraCopy was at 2.0% copying. My objective is to copy 3.56 TB of data from one unit of Western Digital 4 = TB USB portable harddisk to another unit of Western Digital 4 TB USB portab= le harddisk, over USB 3.0 link. USB 3.0 has a theoretical file transfer spe= ed of 5 Gbps, as opposed to 1 Gbps for Gigabit Networking. After waiting for 14 hours 28 minutes, TeraCopy has finally managed to copy= 3.56 TB of data from one unit of Western Digital 4 TB USB portable harddis= k to another unit of Western Digital 4 TB USB portable harddisk, over USB 3= .0 link. At 1.11 PM on 3rd Jan 2026 Saturday, TeraCopy copy operation has finally co= mpleted. Yes, it took TeraCopy 14 hours 28 minutes to copy 3.56 TB of data over USB = 3.0 link (5 Gbps). For Gigabit Networking of 1 Gbps, it would even be sever= al times slower. Unless you have 2.5 Gbps or 10 Gbps Gigabit Networking. If it was 7 TB of data, I don't know how many hours it will take. Basically= you just sit there and wait for super long hours and do nothing. Just star= ing into blank space. According to ChatGPT, if TeraCopy couldn't do it, Linux ddrescue will do th= e job. ddrescue is for Advanced sector-level recovery. FreeBSD also support= s ddrescue. Indeed, I have confirmed that TeraCopy can be used to copy files even when = the source harddisk has bad sectors, without stalling or hanging there fore= ver. Thank you. Regards, Mr. Turritopsis Dohrnii Teo En Ming Extremely Democratic People's Republic of Singapore 3rd Jan 2026 Saturday 1.23 PM Singapore Time