If your Compute Node is failing to boot with the error "Disk Layout Failed" then please gather the following information to submit with your support request.
Send /var/log/node-installer from the head node and the disk layout used for these nodes.
% category use <category of the new nodes>
% get disksetup
SSH to a working node within the same category and send us the output of the commands below.
# df -h
# parted -l
Review the node-installer file for any errors or informational messages.