Re: [Xen-users] XCP My projects and todo list

[Vern Burke <vburke@xxxxxxxx>]

Matthew:
   The XCP cloud is currently 5 servers (2x Opteron single core with 
4GB, soon to get a rolling upgrade to dual core Opterons and more 
memory). We're running about 40 virtual machines (all CentOS 5.4), 
practical limit is around 12 per. We leave the pool master open as extra 
capacity should a slave server croak.
   Networking is the standard XCP configuration using open vswitch. 
Public facing ports are static addresses, ports facing the storage area 
network are DHCP private addresses.
   Back end storage is a pair of the most rock solid NFS servers I 
could put together (2x Opteron, 4GB memory, 500GB drives on hardware 
RAID (soon to be upgraded to 1TB drives), oversize redundant power 
supply, etc) on a private Gigabit Ethernet storage network. I know this 
isn't the most bulletproof redundant storage configuration, but the 
MTBFs will hold us until I find something I'm happy with that doesn't 
require Rube Goldberg to make it work :).
   Problems were mostly confined to various bugaboos with XCP, such as 
leaving a critical file off the last distribution iso. All in all, I 
think XCP is one heckuva package, the bugs just come with the territory 
of being out on the front edge :).
Vern Burke

SwiftWater Telecom
http://www.swiftwatertel.com
ISP/CLEC Engineering Services
Data Center Services
Remote Backup Services

On 2/16/2010 7:13 PM, Matthew Law wrote:
> On Tue, February 16, 2010 8:10 pm, Vern Burke wrote:
> > When all is said and done, most of it will be PHP.
> >
> > I'm developing in kind of a mishmash right now, I guess you could say
> > I'm freestyling :D.
> >
> > It's actually working well enough now that I have it in production on my
> > own XCP cloud (live customers and all!), most of the work left on the
> > working sections is to push static settings off to a common config file.
> >
> > It's so nice to be able to put my feet up in front of the tv and handle
> > the cloud from my BlackBerry :D.
> Sounds cool, Verne.
>
> Can you tell us a bit more? - how many domUs on how many dom0s?  What kind
> of storage and what problems if any did you have to overcome?
>
> Are the domUs bridged or routed and are their IPs statically configured or
> from DHCP?
>
> Enquiring minds wanna know! ;-)
>
> We are quite late to the Xen party and have very little invested in our
> own tools.  This, and because XCP looks so cool has got us thinking of
> creating our own XCP frontend in Ruby together with Sinatra or maybe Rails
> 3 when it comes out soon.
>
> The only worry is the cost of capable and redundant shared storage.  We're
> currently looking at 30 or more domUs across a few dom0s and our small
> company couldn't stretch to a NetApp cluster or anything like it.  Nor
> could we afford to move up from gbit switching either...
>
>
> Thanks,
>
> Matt.
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users