I've currently got a lovely working server that has an LSI 9265-8i RAID card in it with 4x1TB RE4 drives, also running CacheCade Pro 2.0 with 2x180GB SSDs in RAID1. I currently have the main array running on RAID6, as much as I like it. I think running RAID 0+1 would be a better choice for the speed and making the server more responsive. Is there a way to 'migrate' my array from '6 to '0+1 without a full backup and restore (which I'd take a full backup anyway if all went wrong)?
The total available space will be the same (2TB) but I'm guessing my potential reliability will go down a little (if 2 drives fail simultaneously on the same stripe opposed to any 2 drives failing). Can anyone shed some more light on the subject please?
Thank you for your help.