The steps below will go through restoring a Centos 7 system with software RAID 1 VMWare instance to the IONOS environment.

Test from scratch:

Create server image on IONOS with just 2 disks
Add Cdrom
Boot from Acronis rescue image
Choose Rescue Media
Go to Tools Menu and choose “Volume Representation” change to linux-like representation
Choose “Manage this machine locally”
Choose “recover”
Choose “Select Data”
Click “Browse”
Select Cloud storage on left and then choose “Login”
Login with contract-backup unit name and password
Click OK
Choose backup file then click “Hide Archives and Backups”
Click check box at top of each section to select all disks and files
Click Apply RAID/LVM configuration
Leave defaults and click “OK” to begin restore
When complete click close
Upload a Centos 7 install ISO to your DCD environment, follow instructions here https://docs.ionos.com/dcd/administration/images-and-snapshots
In DCD select CDROM drive and set image to Centos live Iso
Resolve errors that come up by setting HD volume metadata to linux
Right click on server and go to console
At Centos Boot screen choose “troubleshooting”
In terminal/console run dracut -f
Then choose “Rescue a Centos System”
Choose 1 continue
Press enter to get shell
Chroot /mnt/sysimage
Run command blkid and screen cap for UUID reference (or can take UUID from grub2.cfg)
Run dracut –mdadmconf –fstab –add=”mdraid” –add-drivers=”raid1″ -f /boot/initramfs-3.10.0-1160.42.2.el7.x86_64.img 3.10.0-1160.42.2.el7.x86_64 your kernel.img and version will probably be different, enter your own versions for initramfs-your kernel and your kernel number again
Vi /etc/grub2.cfg
Change first set root with mduuid to new UUID no dashes
Change kernel path section from dev/md2 with ROOT=UUID=new UUID with dashes
grub2-mkconfig -o /boot/grub2/grub.cfg
Vi /boot/grub/menu.1st and change UUID as changed before in /etc/grub2.cfg
Boot from disk by selecting boot from local disk in centos DVD boot menu, or detach/delete CDROM drive from your instance and set first disk as boot in IONOS DCD.