Date: Sun, 27 Nov 2022 21:12:49 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Warner Losh <imp@bsdimp.com> Cc: FreeBSD User <freebsd@walstatt-de.de>, FreeBSD CURRENT <freebsd-current@freebsd.org> Subject: Re: CAM: extract HDD informations about failure/to fail? Message-ID: <202211272112.2ARLCnsk013242@critter.freebsd.dk> In-Reply-To: <CANCZdfqZZ40tUAKHaXSp4PZFw9tzGveaAHc4irJ1QckcRwDCCg@mail.gmail.com> References: <20221127161544.7dd1207c@thor.intern.walstatt.dynvpn.de> <CANCZdfqZZ40tUAKHaXSp4PZFw9tzGveaAHc4irJ1QckcRwDCCg@mail.gmail.com>
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-------- Warner Losh writes: > It close to impossible to isolate the drive making the noise. Use a long thin piece of hard wood as a stethoscope. I keep a 30cm length of 6mm beech dowel in my tool-chest, but in a pinch you can use a pencil or the shaft from an art-brush. Press one end agaist the little piece of cartilage which can close into your ear, and hold the other end against the suspect disk-drive, and you hear if there are any mechanical issues. It also works for fans, motors, bikes etc. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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