Ceph (Ceph Homepage - Ceph) is a great way to deploy persistent storage with OpenStack. Ceph can be used as the persistent storage backend with OpenStack Cinder (GitHub - openstack/cinder: OpenStack Block Storage (Cinder)) for:Volumes of nova VMs.Gla...

This is a blog about how to deploy multicast in an OpenStack cloud.  Unlike broadcast and unicast, multicast is used for one-to-many communications.What is multicast?One-to-many communicationDriven by receivers (On the contrary, unicast is driven by ...

This blog has the steps to deploy OpenStack Newton with OpenDaylight Boron and Open vSwitch on CentOS-7 in VirtualBox on Mac laptop.Below are the versions used:OpenStack DevStack stable Newton (GitHub - openstack-dev/devstack at stable/newton)OpenDay...

In an OpenStack deployment, when packets from a nova instance need to reach the external world, they first go through the virtual switch (OpenvSwitch or Linux Bridge) for layer-2 switching, then through the physical NIC of the compute host, and then ...

OpenStack cinder provides block storage for nova instances.  Cinder volumes are great to store files in a nova instance permanently.  Without cinder volume, the data/files in a nova instance are ephemeral (temporary) and will be lost once the instanc...