"Cannot edit VM. Maximum PCI devices exceeded." error reported when trying to enable 'VirtIO-SCSI'

Solution Verified - Updated -

Issue

  • When trying enable VirtIO-SCSI for a VM, the following error is reported;
Cannot edit VM. Maximum PCI devices exceeded.

Environment

  • Red Hat Virtualization (RHV) 4.x
  • Red Hat Enterprise Virtualization (RHEV) 3.x

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