On Tue, Jun 7, 2011 at 9:02 AM, Miles Fidelman <mfidel...@meetinghouse.net> wrote: > Ralf Mardorf wrote: >> >> For me a hard disc never gets broken without click-click-click noise >> before it failed, but it's very common that cables and connections fail. >> >> > > By the time a disk gets to the click-click-click phase, there has been LOTS > of warning - it's just that today's disks include lots of internal > fault-recovery mechanisms that hide things from you, unless you run SMART > diagnostics (and not just the basic "smart status" either).
This is not borne out by my experience, or Google's white paper on the subject in 2007. See this study http://static.googleusercontent.com/external_content/untrusted_dlcp/labs.google.com/en/us/papers/disk_failures.pdf The upshot is that "smart" monitoring is nowhere near 100% reliable, you're lucky if it catches even half of your drive failures in time to do anything besides rely on backups or rely on the rest of your RAID. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/banlktikv12enqg6iud-vyhhew6jx9u6...@mail.gmail.com
