I am seriously considering switching to SnapRAID, but here is my problem. Most of my 2Tb drives are in use in my RAID 5 array. I have found this when I was Googling around. "In particular, before reducing the number of devices in a RAID5 or RAID6 you must first reduce the size of the array using the new --array-size= option to mdadm --grow. This truncates the array in a non-destructive way. You can check if the data that you care about is still accessible and then when you are sure, use mdadm --grow --raid-disks= to reduce the number of devices."
Has anyone had any luck with doing this?
I currently have two 2Tb drives that I can move stuff on to and then drop the RAID size down and remove one drive. Wash, rinse and repeat. Is this plan feasible?
Thanks!
Ted