I've set up software RAID1 with the latest Ubuntu version - 11.04 using two 250GB harddrives which initially worked great. Tried to unplug both and computer still started with degraded raid status - reconnecting and rebooting makes the resync perform automatically. Everything good this far.
Unfortunately this morning, one of the harddrives died and when opening the Disk tools or gnome-disk-utility as its called, the main RAID chain shows as degraded.
If I run away to the store and get a new harddrive and plug it into the computer, will everything work out as intended or do I need to partition stuff as I did while installing Ubuntu with the Alternate installer?