From: "Livnat Peer" <lpeer(a)redhat.com&gt; To: "hai wu" <haiwu.us(a)gmail.com&gt; Cc: users(a)ovirt.org Sent: Wednesday, February 29, 2012 9:56:47 AM Subject: Re: [Users] some ovirt questions On 29/02/12 00:56, hai wu wrote: > 1. For ovirt, and future rhev, what's the recommended way going > forward: ovirt node vs vsdm? oVirt node has VDSM installed as well. > 2. For ovirt, and future rhev, libvirt would be supported i think, > what's the recommended way in terms of API going forward? libvirt > API > or REST API? I am not sure what's the difference between these 2. > My > understanding is libvirt might only be good for one physical host, > and > REST API would be good for the whole cluster, is this the case? VDSM is using libvirt to manage the VM lifecycle within the host. There are 2 APIs that are being exposed and 'supported' in oVirt one is the REST-API the engine exposes which is used to manage Datacenters (Host, Networks, Storage, VMs etc.), and there is VDSM API which is used by the engine to execute operations in the host level. You can take a look in the architecture slides to get a better understanding of what is going on - http://www.ovirt.org/wiki/Workshop_November_2011_-_Day_One Arch & Work in progress (continued ) - slides

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