Hello,

I can proof, that this IS possible. Last weekend I was successfully on it.

Migrate Server 2012 standard OS between two RAID1 arrays. with UEFI boot. PowerEdge T620 with Perc H710.

Excuse my English.

Steps I take (some may be change with other products/methods):

- download AOMEI Backupper Server Trial (in future name it as ABS) version ABServerTrial.exe

- install on Server OS and create Bootable CD with WinPe and ABServerTrial on it (bright side - it automatic integrate server NIC drivers)

- start ABS on working OS and Backup -> system backup -> destination NAS (best option is shutdown OS, boot from CD)

- restart server -> Ctrl+R to get H710 bios configuration -> create new array RAID1 from new ssd disks

- restart server, boot from previous created CD, automatic open ABS -> restore -> new RAID array. Personally there I stuck on some time, because can't find NAS (at the end there was network misconfiguration, normally this server works on tagged VLAN, but when boot from CD this network is like normal untagged nic config, to resolve - unplug/plug cable to normal/standard switch port or reconfigure switch port without VLAN tags, chose is Yours - what is easiest in Your situation)

- After successful restore -> restart server -> Ctrl+R ->  Personally I change boot order in H710 adapter bios configuration utility, but possible this is unnecessarily because for me it does not change anything. Maybe explanation is that server UEFI bios settings sequence is uppermost, and then H710 adapter boot sequence. only guess

- restart server -> F11 and try to find right boot device, for me this is "EFI Fixed Disk Boot Device 2". To confirm that booted OS is from new array in OS -> computer manager -> Storage -> Disk Management

- remove EFI partition from old OS partition with diskpart or just remove/rebuild old RAID array, it depend on Your situation.

- reboot to be sure all is ok, and uninstall ABS for purity.