Writing down some issues I found during the  installation of the Nutanix Community Edition on old Dell 715 and 630 Servers.

Since the controllers of this Servers does not support IT mode or Pass through I had to configure them all as RAID 0.

After that it is necessary to cancel the installation Window because the Disks are only recognized as HDDs.

To cancel the install window press Shift + R and the screen session is terminated.

After that execute the following commands in order to define the SSD disks:

killall screen
#choose the drive letters which are the SSDs on your system and execute the following command for each drive.
echo 0 > /sys/block/sd?/queue/rotational

Restart the installation with the following command:

./ce_installer && screen -r