rst upgrade from raid 0 to raid 5

[PHart5]

i have rst 10.1.0.1008 on an s3000ah board. I have 3 hard disks in a raid 0 array, and one other disk not in an array and set as a hot spare.

How can I set this so the 3 disks are in a raid 5 array and the extra disk is a hot spare?

[Edward_Z_Intel]

I don't think you can migrate a RAID 0 to RAID 5 using same amount of disks. The only way is to backup all data, re-create the array, and restore the data.

[PHart5]

ok, is there a way to remove a disk from an existing array? assuming the space of that disk size is free?

[Edward_Z_Intel]

Not that I'm aware of... Even if there is free capacity on the RAID volume, data is distributed across all disks, meaning no disk is actually "free".