Howto: Setting up RAID 1 mirroring on a running remote Linux system over ssh connection
Caution: Make sure you backup all-important data before using this tutorial. I will be not responsible for data loss Wink
But what is a RAID 1?
A single hard drive is mirrored i.e. an exact copy is made of the original drive. Thus, it result into the increased fault tolerance and easy data recovery option for single server.
Why I am setting a RAID-1 on running system?
Old sys admin did not setup RAID -1 at the time of installation. It is true that the best and easy way to setup a RAID 1 is during installation. Simply create RAID software partition and install the system. Nevertheless, it wasnâ€™t done during installation; so I was asked to do soâ€¦Read more at NixCraft