When a VM fails to start with a similar error as below:
Attempting to start vm on node:0=>FAILED. <OAKERR:7007 Error encountered while starting VM - Error: Device 51728 (vbd) could not be connected. Hotplug scripts not working.
It may worth a try changing the below parameter
In the file below
And restart the oda_base.
Attempting to start vm on node:0=>FAILED. <OAKERR:7007 Error encountered while starting VM - Error: Block device must have physical details specified
Review the vm.cfg. Remove the cdrom reference if one is specified.
Example: disk = [u'file:/OVS/Repositories/ebs1213/.ACFS/snaps/ebsv1213a/VirtualMachines/ebsv1213a/0d4daa67ce3f4839afe398e6040010b1.img,xvda,w', u',xvdb:/OVS/Repositories/ebs1213/.ACFS/snaps/ebsv1213a/VirtualMachines/ebsv1213a/cdrom,r'] maxvcpus = 8 maxmem = 28672