What all considerations required to copy cluster with RAID10 configuration to configuration without RAID.
Source as RAID10 Copycluster destination with NO RAID
vbr does not really care what the RAID configuration you have set up at either source or target. So yes, it'll work - vbr will simply copy the cluster as long as you have sufficient disk space in target nodes and target is identically configured as source (number of nodes, database name, catalog/data directories etc - see full list in the section "Configuring the Target Cluster" here).
BUT a Vertica cluster (in this case, your target cluster) without any RAID has potential disk failure and performance pitfalls, see this blog post for info: https://www.vertica.com/kb/RAID-Storage-for-Vertica/Content/Hardware/RAID-Storage-for-Vertica.htm