I found the solution by installing another driver from the lsi list and then disabling the native driver. The correct driver is not in the DELL ESXi 6.0 A00 image.  Summary, just do this on each host:  [root@*:~] esxcli software vib install -v /vmfs/volumes/DS_SAN_DG2VD1/ISO/scsi-mpt3sas_10.00.00.00-1OEM.600.0.0.2494585.vib Installation Result   Message: The update completed successfully, but the system needs to be rebooted for the changes to be effective.   Reboot Required: true   VIBs Installed: Avago_bootbank_scsi-mpt3sas_10.00.00.00-1OEM.600.0.0.2494585   VIBs Removed:   VIBs Skipped: [root@*:~] esxcli system module set --enabled=false --module=lsi_msgpt3  
Hello  We ordered 4 brandnew R730 servers with 12Gbps SAS cards and a MD3420 SAN. The ESXi hosts came preinstalled with ESXi version 6.  Now after we installed 40 VMs on this, we see that after a reboot, the HBA does not detect the luns. Only after plugging out the HBA cables and reversing them, it detects them. Also in the HBA path selection I cannot see any options like "round robin" etc. When I check the VMware site it seems that all DELL powervault MD32xx/MD34xx SANs DO support ESXI 6.0, except for the MD3420! I checked this previously and start to doubt myself / or whether the compatbility on the website has changed. [URL] Is there any driver or update to be expected withing the first weeks, or should I start downgrading all my VMs and esxi hosts to version 5.5? This is really a shortcoming I think especially since the package came with 6.0 preinstalled.  Best Regards,  Joris    
Powervault MD3420 support for vSphere 6.0 Esxi 6.0 ?