[Users] Trying to understand oVirt terminology.

[Andrew Cathrow]

----- Original Message -----
> From: "Sharad Mishra" <snmishra at linux.vnet.ibm.com>
> To: users at 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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