I set up a software raid consisting of (2) 320Gb drives, with monthly backups to a third disk..
Night before last I heard a ticking coming from the computer and sure enough I'd lost one of the disks. From my understanding the last disk should have kept on running alone. However, the entire raid seems to have vanished.
It's at the end of the monthly cycle so a months worth of data is missing. Probably going to set up a weekly or even daily backup when I get this straightened out.
I found a place that said to remount the remaining disk using the following command
sudo mdadm --create /dev/md1 -l 1 -n 2 /dev/sde missing
However wheni I attempt it, I get a
mdadm: cannot open /dev/sde: Device or resource busy
response. If I attempt to unmount SDE, I'm told it isn't mounted.
Edited by Ravenbar, 06 December 2016 - 09:41 PM.