Changes

* Install drive as master on the second IDE channel (hdc) or the second SATA channel (sda)

* Install drive as master on the second IDE channel (hdc) or the second SATA channel (sda)

* Boot up  

* Boot up  

* At the login prompt log on on as admin with the root password to get to the admin console  

* At the login prompt log on as admin with the root password to get to the admin console  

* Go to #5 Manage disk redundancy  

* Go to #5 Manage disk redundancy  

It should show the status and progress if the drives are syncing up. Don't turn off the server until the sync is complete or it will start syncing again from the beginning. When it is done syncing it will show a good working Raid1.

It will show the status and progress if the drives are syncing up. Don't turn off the server until the sync is complete or it will start syncing again from the beginning. When it is done syncing, it will show a good working Raid1.

If the Manage disk redundancy page displays the message "The free disk count must equal one" and "Manual intervention may be required", then you probably have additional hard drives that need to be disconnected while the RAID is set up. An external USB drive will have this effect, and should be unplugged.

If the Manage disk redundancy page displays the message "The free disk count must equal one" and "Manual intervention may be required", then you probably have additional hard drives that need to be disconnected while the RAID is set up. An external USB drive will have this effect, and should be unplugged.

{{Note box| the addition of another drive is restricted to a Raid1 that is degraded, i.e. when the system has been installed with a single drive (/dev/hda and /dev/hdc or their SATA equivalent). The addition of a third drive to a RAID 1 '''(i.e. a spare)''' is not recognized by the system. To add a spare you need to use the management tool '''mdadm''' at the command line}}

{{Note box| the addition of another drive is restricted to a Raid1 that is degraded, i.e. when the system has been installed with a single drive (/dev/hda and /dev/hdc or their SATA equivalent). The addition of a third drive to a Raid1 '''(i.e. a spare)''' is not recognized by the system. To add a spare you need to use the management tool '''mdadm''' at the command line}}

{{Note box|I will assume the system is installed with a Raid1 array functioning with two disks sda and sdb and you want to add another disk sdc as a spare (for adding to the array automatically if one disk of the array fails). This HowTo can be adapted to other types of RAID as long as you want to add a spare disk.}}

{{Note box|I will assume the system is installed with a Raid1 array functioning with two disks sda and sdb and you want to add another disk sdc as a spare (for adding to the array automatically if one disk of the array fails). This HowTo can be adapted to other types of RAID as long as you want to add a spare disk.}}