Namaste misc, The softraid(4) documentation states the following in the CAVEAT section [1]:
"Stacking disciplines (CRYPTO on top of RAID 1, for example) is not supported at this time." Based on my limited understanding, RAID 1C seems to allow the above. Also, Dhanyavaad Stefan for RAID 1C. Dhanyavaad Dharma Artha Kama Moksha [1] - https://man.openbsd.org/softraid.4#CAVEATS