Oh, meant to attach my current md status, which shows the problem very well:
md1 : active raid10 sdc3[3](S) sda3[0] sdb3[1] 113859584 blocks 512K chunks 2 near-copies [3/2] [UU_] I've added a new drive, md knows it exists, md knows there's a drive missing... but it doesn't sync. No amount of removing and re-adding the drive makes it sync. -- mdadm RAID10 arrays cannot be rebuilt, will not use available spare drives https://bugs.launchpad.net/bugs/285156 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs