ned Productions Consulting


Technology musings by Niall Douglas
ned Productions Consulting
(an expert advice and services company based in Ireland)


Saturday 15th March 2014 3.58am

Just learned the hard way: when replacing a failing drive in ZFS, add the new drive as a third mirror before removing the failing drive. Me, I tried to be clever and tried to dd the old drive to the new in lvm outside the virtualised FreeBSD, but ZFS twigged I'd changed out the drive from beneath the virtualisation somehow and broke the mirror. Now ZFS is resilvering the mirror, but it's from a single copy so I'm quite screwed if some bit flips have happened between earlier today and now :( Note to self: seriously look into OVH Hubic (https://hubic.com/en/), 10Tb for €10/month would make these sorts of risks go away forever.