From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sat, 3 Feb 2018 15:59:26 -0800 From: Lyndon Nerenberg To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Message-ID: User-Agent: Alpine 2.21 (BSF 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Subject: [9fans] SMART: Silly Marketing Acronym, Rebuts Truth Topicbox-Message-UUID: cbb982d4-ead9-11e9-9d60-3106f5b1d025 > The interesting thing (for me) was that > the SMART data from the drive gave it an all clear right to the end. But > unlike the SSDs, there was plenty of behavioural warning to remind me to > have the backups up to date and a spare at the ready... FWIW, of the three-four dozen or so drives I have actively SMART monitored over the years, of the ones that failed, *not* *one* gave a SMART warning before dying. That includes a spinny disk in one of my Mac Minis. Of anyone, I would expect Apple to be in bed with their HD suppliers enough to have HD firmware that reliably reports SMART errors (since the disk utilities do pay attemtion to it). I spent a month listening to that drive's heads slam back to the home position as it tried to recalibrate itself, before eventually dying. To the bitter end, SMART reported "a-ok boss!" --lyndon