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Fri, 19 Jul 2019 09:46:11 -0700 (PDT) Received: from localhost ([213.149.55.147]) by smtp.gmail.com with ESMTPSA id d12sm8654110edp.16.2019.07.19.09.46.10 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 19 Jul 2019 09:46:11 -0700 (PDT) Date: Fri, 19 Jul 2019 18:45:20 +0200 From: Domagoj =?UTF-8?Q?Smol=C4=8Di=C4=87?= To: Wojciech Puchar Cc: freebsd-hackers@freebsd.org Subject: Re: please help translate smartctl output to human language Message-ID: <20190719184520.0000221d@gmail.com> In-Reply-To: References: <20190719142227.00005348@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 7333475547 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=Z1H6LQG6; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of rank1seeker@gmail.com designates 2a00:1450:4864:20::52a as permitted sender) smtp.mailfrom=rank1seeker@gmail.com X-Spamd-Result: default: False [-6.97 / 15.00]; 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Over time, VALUE of Total_LBAs_Written will be > > declining. Once it reaches THRESH value it is considered 'Old_age', > > meaning it's prone to all kinds of malfunctions expected from old > > hardware. That doesn't mean you want be able to use it afterwards. > > > > > > > > =20 > but are this proportional? I mean i had 100 when drive was new, now > it's 99 so it's 1% used up (maybe near 2%)? >=20 > Seems quite a little after 2 years of usage As I said, those are "normalized" values in order to have a MORE sensible i= nterpretation. Different vendors =3D> different interpretation. Just because it decremented for 1, doesn't mean it is trully 1% used up. What would that mean anyway, wear level? Also don't be shocked if decrement would be in >1 step. Finally, your device might drop dead 5 min after you read this email. Got an idea? ;) Domagoj Smol=C4=8Di=C4=87=20