Hola, iam Jammie Tiemens, May your day be joyful.
Can You Change Raid Without Losing Data Synology? [Solved]
Storage pools can be changed from one RAID type to another without losing existing data. For example, you can create a RAID 1 storage pool on your Synology NAS and later change it to RAID 5 if you install more drives.
Synology NAS - Migrating from RAID 1 to RAID 5
Synology
Quick NAS Topics Changing Storage Pool from RAID 1 to RAID5 with the Synology 1621+
In this not so Quick NAS topic I cover
Synology DS220+ changing from RAID 0 to SHR
Trying to find the best
