Storage settings can erase data. Confirm the disk identity and keep a backup before changing pools, RAID, filesystems or external disks.
Use Storage center to inspect health, volumes, snapshots and free capacity. RAID and ZFS support depends on the device architecture, kernel and installed components. Do not mix disks or change a pool layout without reading the device-specific instructions.
Create shared folders after the storage pool is healthy. Configure SMB/NFS access separately from NAS desktop and SSH credentials, then test a small file before importing a large data set.