Backup/restore is the only way.  You CAN insert the SSD's, create the RAID 1, then clone/backup/restore directly to the SSD RAID 1, rather than to external media first, and then to the SSD's, but because HDD/SSD and/or SAS/SATA cannot be mixed in an array, you don't really have any other options.
Hi I would like know the the most efficient way to migrate a Windows Server 2008 R2 OS installation from a RAID1 HDD to a RAID 1 SSD We currently use Dell R710 servers and the OS is installed on 2.5" 15K SAS disks in a RAID 1 configuration. Thanks in advance.
Upgrade Server 2008 R2 HDD to SSD with minimum downtime