Hi Sai Cloudstack entirely depends on kvm/libvirt limitations
KVM generally provides 32 PCI slots, which are used to connect several devices. https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/5/html/virtualization/sect-virtualization-virtualization_limitations-kvm_limitations https://github.com/apache/cloudstack/pull/8654 Regards Kiran From: sai <sai.kr...@gmail.com> Date: Tuesday, 8 July 2025 at 11:24 PM To: users@cloudstack.apache.org <users@cloudstack.apache.org> Subject: Regarding PCI slots Hi All, I have query on adding network and volume to vm, while adding those i am getting no more available pci slots error from libvirt. When I see discussions in community the only option is to stop and add resources and restart the vm. Is that only option we have or anything from code needs to be fixed to add while vm is in running state. Else is there any PR fixed for this. Thanks in advance. Regards, Sai