fluffy

Hi, thank you for the response. All of your ideas were already tested. The card was running fine in another setup on different hardware (without ESXi). Disabling the onboard SATA controller is not easily doable because it has a SSD connected which is used for the OS. Currently only one HDD is connected to the ARC-1220 controller -> JBOD mode. I am asking myself if it is a good idea at all to use that controller or would it be better, to connect 4 HDDs to mobos SATA controller and let DSM do the RAID5 stuff. What do you think? Regards, Ingo

Hi, I want to build a NAS based on a DELL T20 Server with an ARECA AR-1220 controller (passthrough) and a SSD drive for XPEnoboot 5.2-5644.5 running on ESXI 6.0 Installation of XPEonoboot went fine until I try to install DSM. The NAS is found but during installation it says "no harddrives found" though it seems as the driver arcmsr is loaded successfully during boot time. I tried several things, e.g. running a Windows 10 based VM with ARECA controller in passthrough mode on that ESXI hypervisor: after installation of ARECA drivers I can see and access the volumes of that controller. Controller bios is latest. Does anyone have an idea what went wrong and why the DSM installation does not see any drives? Thanks in advance, Ingo