Open-E Jovian DSS HowTo CheckMK
https://blog.open-e.com/monitoring-open-e-dss-v7-and-open-e-joviandss-with-checkmk/
(Use the ARECA MIB for JBOD, the Supermicro MIB for the chassis. There are also JBODs from Supermicro, here the Supermicro MIB also applies).