If that is the case, you need to make sure that your mdadm.conf file is updated correctly with the new drive.
Try running the following:
Code:
mdadm --examine --scan --config=mdadm.conf >> /path/to/your/mdadm.conf
Then run
Code:
mdadm --assemble --scan --verbose
That should re-initialize the array. Also make sure you have the proper settings in your fstab file.
Here is another good how-to while working with software raid:
http://consultancy.edvoncken.net/ind...oftware_RAID-5