[Users] New to oVirt, I've got a couple of questions.

[Adam vonNieda]

   Hi Chris,

   Thanks very much for taking the time to write such a detailed reply.
That answers my question, and that's what I'd suspected since I didn't see
any reference in the docs.

   Best regards,

   -Adam




On 3/28/12 8:32 PM, "Brown, Chris (GE Healthcare)"
<Christopher.Brown at med.ge.com> wrote:

>What you seem to be getting at is a feature like VMware, VirtualBox, or
>the libvirt default constructed virbr0 interface to provide NAT to your
>guests. At the moment RHEV/oVirt only supports bridged networking with
>the ability to vlan if you so wish. In essence all the typical
>functionality of the linux bridgeutils and bonding driver. The
>restriction at the moment is that RHEV/oVirt only allows creating a valid
>network from a bridge which is attached to physical NIC. I have the usual
>suspect tricks by creating virtual NICs, using openvswitch, or VDE, etc
>in an attempt to achive both the notion of a private internal network
>between guests or a NAT networking for the guests.
> 
>Thus this limits the ways you could achive NAT or internal networking for
>your guests.
>- Bridge to a physical NIC(s) which are attached to a network which
>already NAT'd.
>- Bridge to physical NIC on a private switch and create mutiple vlan's on
>top of that
>- Via the vlans you can in essence create multiple networks for your
>guests
>- Via the vlans you can either NAT to multiple networks or create private
>internal networks for your guests
>--> attach a VM or linux box with one nic attached to the private switch
>vlan this NIC appropriately and go to town with NAT attached to an
>external network on the other NIC
>- Hand configure macvtap (VEPA) or create vdsm hook for it and bridge to
>a private switch which supports hair-pinning (guest to guest
>communication)
> 
>Suffice to say this is definately an area that both RHEV/oVirt could
>improve.
>- Chris
>
>________________________________
>
>From: users-bounces at ovirt.org on behalf of Adam vonNieda
>Sent: Wed 3/28/2012 7:38 PM
>To: users at ovirt.org
>Subject: Re: [Users] New to oVirt, I've got a couple of questions.
>
>
>
>
>  Thanks for the Reply, Andrew. OK, so local storage obviously isn't the
>best architecture, but that's what I've got, so I'll figure something out.
>
>   How about the networking question? How are people getting to their VM's
>from the physical network? Here's the original question..
>
>Networking: When I set up a logical network, how is that accessed
>from the physical network? For example, if my physical network is
>192.168.1.0, and my logical network is 155.223.44.0, how will I
>connect to port 80 on a virtual machine with the IP 155.223.44.5
>from IP 192.168.1.10. Is there port forwarding? I didn't see mention
>of it in the guide.
>
>   Thanks folks,
>
>      -Adam
>
>
>
>
>On 3/28/12 6:41 PM, "Andrew Cathrow" <acathrow at redhat.com> wrote:
>
>>
>>
>>----- Original Message -----
>>> From: "Adam vonNieda" <adam at vonnieda.org>
>>> To: users at ovirt.org
>>> Sent: Wednesday, March 28, 2012 5:29:01 PM
>>> Subject: [Users] New to oVirt, I've got a couple of questions.
>>>
>>>
>>>
>>>
>>> Hi Folks,
>>>
>>>
>>> I've got oVirt 3.0 installed on a Fedora 16 machine, and I'm planning
>>> my data center. Great process, by the way, very straight forward.
>>> I'll have two host machines (on order) which I'll likely load with
>>> the oVirt image. These two hosts each will have a large amount of
>>> RAID 5 local storage. Here's my questions..
>>>
>>>
>>> Storage: If I'm using this local storage on each host, will I be able
>>> to migrate VM's from host A to host B if needed, or does storage
>>> need to be shared. I guess another way of asking the question is,
>>> what's the best way for me to set this up? :)
>>
>>You'll need shared storage - NFS, iSCSI or Fiber channel. In the future
>>they'll be other options such as native Gluster, but for now you'll need
>>something like NFS.
>>>
>>>
>>> Networking: When I set up a logical network, how is that accessed
>>> from the physical network? For example, if my physical network is
>>> 192.168.1.0, and my logical network is 155.223.44.0, how will I
>>> connect to port 80 on a virtual machine with the IP 155.223.44.5
>>> from IP 192.168.1.10. Is there port forwarding? I didn't see mention
>>> of it in the guide.
>>>
>>>
>>> Thanks very much!
>>>
>>>
>>> -Adam vonNieda
>>> _______________________________________________
>>> Users mailing list
>>> Users at ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>
>
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