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From Carlos Reategui <>
Subject Re: Recommendations for a private cloud
Date Wed, 13 Feb 2013 01:51:00 GMT
Thanks for the pointers.

On Tue, Feb 12, 2013 at 1:29 AM, Sebastien Goasguen <>wrote:

> On Feb 10, 2013, at 8:43 AM, Carlos Reategui <> wrote:
> > Hi All, new to CloudStack and have many questions.  I am looking to
> > implement a private cloud for our engineering and qa teams to play around
> > and be able to launch test clusters prior to doing so in the cloud (AWS).
> > I started messing around with the CloudStack installation (3.0.2) and
> > setting up XCP 1.5  and 1.6 hosts and was a bit confused by the
> networking
> > setup (this is all internal, the VMs won't have a public interface).  I
> am
> > now in the process of starting over.  This time with the incubating
> release
> > (4.0.0) and was hoping to use Ubuntu 12.04 + xapi (aka Kronos) as it
> > provides better support for my network hardware (BCM quad 1Gbe) -- I had
> to
> > jump through hoops to get XCP 1.5 to work and 1.6 did not work with CS
> > 3.0.2.
> >
> Hi Carlos,
> I would use the 4.0.1 release.

I'll give that a try.

For Ubuntu, Gerry Havinga just posted a script that helps with the
> installation, you might want to check it out:

I notice his script installs cloud-agent and cloud-system-iso, do I need
those as well for xapi on ubuntu?  Or are those for KVM only.  In looking
at the install docs, I don't see them mentioned in the Xenserver section.

> As far as networking, the first decision will be to decide whether you are
> going to use VLANs or not. If you don't use VLANs, you will setup a "basic"
> zone, if you can do VLANs you might want to setup an "advanced" zone.

I don't know much about VLANs so I was going to stick with a basic zone.
 Especially since I don't have a need for a public network.

> Shapeblue has some blogs that are very useful in addition to reading the
> documentation:
> and:

Thanks for these, somehow had not run across them in my google searches.
 Although now I am confused about the "storage" network as he explains that
is for secondary storage.  In my setup I was going to start with the
management node also being the NFS storage for both primary and secondary.
 It has a 2 10Gbe and 2 1Gbe ports. I have the 10Gbe ports going to a
switch (dell 6224) that is physically isolated from the the rest of the
network and was planning on only having NFS traffic on that.  Should I also
configure that to be my "management" network?

Anyhow I have made some progress with 4.0 but got stuck not being able to
add a host, which I am pretty sure has to do with my host network
settings/labels.  Also the management server seems to think my "storage" ip
( is the management network (there is an alarm saying the
management server node is up on that ip).  How do I change that?
Also I see a couple other alarms: "management network CIDR is not
configured originally. set it default to" and "no usage
server process running".  Should I worry about that.

I have updated to 4.0.1 and will try to figure out my host network as "xe
network-list" does not seem to match what I have actually configured.

> -Sebastien
> > Has anyone had any success with 12.04 + xapi for the nodes?  The script
> to
> > add nodes seems to know about Kronos.  If this won't work is there a
> > preferred Xen host with somewhat up to date drivers (for a Dell R620 with
> > BCM 5720 Quad)?
> >
> > Regarding the network setup, what is the recommended setup with 4 1Gbe
> > ports?  I already have a separate storage network (NFS server has a 10Gbe
> > link) so I was thinking of bonding 2 ports for storage and 2 for
> > management/VM traffic.  Does this make sense to bond the second pair?
>  Do I
> > need separate subnets for management and vm network or are different
> ranges
> > within the same subnet enough (security is not a concern in my
> deployment).
> > Currently, corporate IS is providing me a subnet with DHCP.  Is that
> going
> > to be a problem for CS?
> >
> > I do have the option of adding another dual or quad port card.  If I do,
> > what would the recommended setup be?  The nodes have 2x8core CPU with
> 64GB
> > RAM.
> >
> > I definitely appreciate any pointers to help me off the ground.
> >
> > thank you,
> > Carlos

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