Can I Create Raid 5 with data on 1 hard drive?

[matongo]

Hi,

I just installed FreeNas 8.3.0 and I am planing to use 3 1 TB HD to create Raid 5 array. 1 of the 3 HD contain data an I absolutely don't want to loose data on the drive.
Is it possible to do it?

Thank you

 

[Stephens]

No. Creating an array will destroy all data on the drive. You have to copy the data off, create the array, and copy it back.

 

[William Grzybowski]

It is possible, but not recommended.

Read http://pcaddicts.ca/rc/2010/05/20/migrate-zfs-mirror-to-raidz-on-freenas/ for an idea.