[ovirt-users] HC : JBOD or RAID5/6 for NVME SSD drives?

Hi, We have been evaluating oVirt HyperConverged for 9 month now with a test cluster of 3 DELL Hosts with Hardware RAID5 on PERC card. We were not impressed with the performance... No SSD for LV Cache on these hosts but I tried anyway with LV Cache on a ram device. Perf were almost unchanged. It seems that LV Cache is its own source of bugs and problems anyway, so we are thinking going for full NVME drives when buying the production cluster. What would the recommandation be in that case, JBOD or RAID? Thanks Guillaume Pavese Ingénieur Système et Réseau Interactiv-Group