Hi, You are not able to reconfigure to a spanned array. Depending on your controller you may be able to reconfigure to a RAID 5 or 6. [URL]
I am currently running PowerEdge R610 with two 146 GB drives in RAID1 configuration, with Debian as OS. I am considering expanding the total capacity with two more drives, as the free space is getting pretty low. I can afford some downtime, if necessary. My question is: Can I easily add two more drives and switch to RAID10 on the fly to increase the total capacity without any data loss? If so, how would I go about doing it? Or will I have to make a full backup, destroy the array, re-create it and restore the data afterwards?
PERC 6/i switching from RAID1 to RAID10?