[CentOS] how to replace a raid drive with mdadm

Sat May 10 16:39:20 UTC 2014
CS_DBA <cs_dba at consistentstate.com>

Hi all

If we loose a drive in a raid 10 array (mdadm software raid) what are 
the steps needed to correctly do the following:
- identify which physical drive it is
- replace the drive
- add the new drive to the array and force it to re-sync

Thanks in advance