Replacing Failing Drive in Linux Raid 1 mdadm Array
I've had a disk drive complaining about have trouble writing to certain blocks (specific error is I/O error, dev sdc, sector 1446901823 -across a bunch of different sectors). This raid mirror isn't supper critical, it holds backups from the other machines on my home network, but I'm starting to think it's time to replace the failing drive and eventually upgrade the size of my backup mirror (md0) partition from 1TB to 2TB. I'm using about 90% of the space right now, but probably have a good 3-4 months before I need the space. Overall, the process was much simpler than I expected and very straightforward. Other than the synchronization of the new drive the whole process took about 20 minutes. It was nice not having to do this with a system down, but I could do it much quicker having been through this test run. 1. Preparation before starting: I just wanted to gather some background on my drive system before I start unplugging and plugging bac...