----- Original Message -----

From: "Sharad Mishra" <snmishra@linux.vnet.ibm.com> To: users@ovirt.org Sent: Wednesday, February 29, 2012 2:09:23 PM Subject: [Users] Trying to understand oVirt terminology.

While reading oVirt Wiki and other related docs, I came across multiple terms that meant the same thing (at least to me). Please take a look and let me know where I am wrong.

1) Difference between RHEV and oVirt node - oVirt node has VDSM and libvirt whereas RHEV only has libvirt.

For terminology and architecture oVirt == RHEV. RHEV is a downstream product offering of oVirt. Later we'd expect to see other downstream offerings based off oVirt. RHEV users VDSM (which uses libvirt) in the same way that oVirt uses VDSM.

2) 'RHEV-M server' is same as 'oVirt Engine Mgmt Server' is same as 'oVirt Engine'.

Yes

3) 'oVirt API' is same as 'REST API' is same as 'RHEV-M API' which is same as 'oVirt Engine API'.

Yes.

4) 'Host Agent' is same as VDSM

Yes

5) 'oVirt Node API' is same as VDSM API.

Yes.

Question ) Guest Agent is running on VM. How does it get installed there?

for RHEL guests it's part of the RHEL distribution (shipped on RHN for RHEL5&6) for other distros it's packaged in other ways. eg. we have the guest agent for Fedora packaged in our nightly builds.

Regards, Sharad Mishra

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