I'm guessing you tried that and it failed. The more common way is to install your new drives, set them up in the RAID as you like then restore from your backup.
These appear to be servers so back to Fujitisu at http://www.fujitsu.com/fts/products/computing/servers/primergy/tower/ and see if they documented such a change or upgrade. It may be specific to your model but the most common path I know is to put in the drives and restore from backup.
Hi,
I currently have a Fujitsu Primergy TX100 S3 with 2 500GB HDDs in a RAID 1 Array, I have cloned both HDDs onto 2 new HGST 4TB HDDs but how do I make them work with the RAID so they are bootable?
Any help would be greatly appreciated.
Many thanks,
Lee.

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