Date: Sun, 21 Jun 2015 16:49:46 -0400 From: Quartz <quartz@sneakertech.com> To: Willem Jan Withagen <wjw@digiware.nl> Cc: fs@freebsd.org Subject: Re: This diskfailure should not panic a system, but just disconnect disk from ZFS Message-ID: <5587236A.6020404@sneakertech.com> In-Reply-To: <5585767B.4000206@digiware.nl> References: <5585767B.4000206@digiware.nl>
next in thread | previous in thread | raw e-mail | index | archive | help
Also: > And thus I'd would have expected that ZFS would disconnect /dev/da0 and > then switch to DEGRADED state and continue, letting the operator fix the > broken disk. > Next question to answer is why this WD RED on: > got hung, and nothing for this shows in SMART.... You have a raidz2, which means THREE disks need to go down before the pool is unwritable. The problem is most likely your controller or power supply, not your disks. Also2: don't rely too much on SMART for determining drive health. Google released a paper a few years ago revealing that half of all drives die without reporting SMART errors. http://research.google.com/archive/disk_failures.pdf
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?5587236A.6020404>