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From Carlos Reategui <car...@reategui.com>
Subject Re: Recommendations for a private cloud
Date Wed, 27 Feb 2013 00:07:56 GMT
Sorry for the delay in getting back to you.  I was traveling and not able
to work on this.

I have added the NFS SR to my host.  I was also able to create a VM and got
decent performance to the NFS based storage (90MB/s).  I did all this using
xe command line so I believe at the very least Xen and xapi are working on
this host with my primary storage.

Unfortunately I did not have the same amount of luck with Cloudstack.  I
first tried using the setup wizard but the primary storage options do not
include "PreSetup" option so I went back and did the manual setup of the
Zone.  Everything seemed to go ok (after I added the .ssh dir in root's
home dir) but it now seems like the system VMs are not starting up
properly.  I have not tried creating an instance of my own yet (need to
read up on creating an ubuntu precise template first).  I'll try to debug
some more and will follow-up in a separate thread.

-Carlos



On Fri, Feb 22, 2013 at 2:57 AM, Sebastien Goasguen <runseb@gmail.com>wrote:

>
> On Feb 13, 2013, at 2:51 AM, Carlos Reategui <carlos@reategui.com> wrote:
>
> > Thanks for the pointers.
> >
> > On Tue, Feb 12, 2013 at 1:29 AM, Sebastien Goasguen <runseb@gmail.com
> >wrote:
> >
> >>
> >> On Feb 10, 2013, at 8:43 AM, Carlos Reategui <carlos@reategui.com>
> 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:
> >>
> >>
> http://opensourcetutorials.blogspot.nl/2013/02/adding-ubuntu-1204-kvm-host-to.html
> >
> >
> > 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.
>
> Carlos, sorry for the delay.
>
> If you use Xen on ubuntu. CS will use xapi. You don't need to install the
> cloud-agent.
>
> The issue of needing cloud-system-iso has been fixed in 4.0.1 but this is
> only needed for KVM.
>
> I will try to add some docs in the coming weeks.
>
> >
> >
> >>
> >> 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:
> >>
> >>
> http://www.shapeblue.com/2013/01/07/understanding-cloudstacks-physical-networking-architecture/
> >>
> http://www.shapeblue.com/2012/05/01/cloudstack-networking-considerations/
> >> and:
> >>
> >>
> http://www.shapeblue.com/2012/05/10/using-the-api-for-advanced-network-management/
> >
> >
> > 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?
>
> I am not an authority on this. But I believe that you could define a
> storage network as long as the hosts can access it.
> If you don't define a storage network the storage traffic will go over the
> 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
> > (172.30.19.10) 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 172.30.45.0/24" 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.
>
> Give us an update on this, as your email was 10 days ago, you may have
> made progress.
>
> >
> >>
> >>
> >> -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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