Hi Jonathan,

Just tested this and it works great. Just as a note, one will also have to use 
XenServer's xs-tools inside a VPS or modify the version in 
/usr/sbin/xe-update-guest-attrs line 215-217 or XenCenter will complain that 
the Tools are out of date and Suspend and maybe other features will be 
unavailable.

I'm also guessing you'll have to make sure you use the same version on all 
hosts if using XCP in a pool.

Best regards,
Adrian Costin



From: Jonathan Ludlam [mailto:[email protected]]
Sent: Friday, February 18, 2011 6:08 PM
To: Adrian Costin
Cc: [email protected]
Subject: Re: [Xen-API] Re: [Xen-users] XCP and XenCenter

rc3 is up:

http://www.xen.org/files/XenCloud/Software/xcp-1.0-rc3

New features: if you create a file '/etc/xensource/xapi_version_override' with 
contents, for example '5.6.199', XenCenter behaves more nicely when it's 
connected.

Jon

On 16 Feb 2011, at 16:58, Adrian Costin wrote:


Hi,

Why don't you move the version in some config file. This should be a simple 
hack and those who wish to change the version to take advantage of all the 
features in XenCenter would be able to do it without changing a binary file or 
recompiling.

It would also make it easier to change back in the future when XenCenter will 
(hopefully) enable features by other means then version checks.

Best regards,
Adrian Costin


From: 
[email protected]<mailto:[email protected]> 
[mailto:[email protected]] On Behalf Of Jonathan Ludlam
Sent: Wednesday, February 16, 2011 6:37 PM
To: Lars Seeliger
Cc: [email protected]<mailto:[email protected]>
Subject: Re: [Xen-API] Re: [Xen-users] XCP and XenCenter

The problems with XenCenter are due to it doing explicit version checks to see 
whether to enable particular features. We toyed with the idea of internally 
pretending that XCP had the current XS version to work around this, but it was 
too gross a hack. It's effectively equivalent to the patch linked to by 
Tomoiaga (although using a more recent version number).

One of the things I'm working on is to try to minimise the places where this 
version number gets baked in to both XenServer and XCP. I expect that by the 
release of XCP 1.1 (probably August sometime), XenCenter will be able to use 
most XCP features.

For now, XenCenter kinda works, and if you're willing to do the patch below (or 
recompile xapi to use a different version number), it'll work better. Don't 
forget that XenCenter is *not* part of XCP currently, and the team that hack on 
it have no spare resource to commit to supporting XCP alongside XenServer, so 
there will not be any guarantees about how well it works. In particular, I 
suspect that they'll always be checking for licenses, having HA / work load 
balancing / whatever else dialogs, and various other things that don't make 
sense for XCP.

Regarding using the xs-tools iso from XenServer, there should be no problems 
there.

Hope this clarifies things,

Jon





On 16 Feb 2011, at 09:54, Lars Seeliger wrote:



Thanks a million, Tomoiaga!

I'm still unable to configure VM Protection Policies but, other than that, I 
think everything works. Nice!
On 15 February 2011 22:57, Tomoiaga Cristian 
<[email protected]<mailto:[email protected]>> wrote:


http://www.xensemaking.com/misc/patchxcp.sh
Will change 1.0 with 5.6 in xapi, just run it on each of your XCP nodes and 
restart xapi.

You will have to install the XenServer drivers in VMs after that, to be able to 
suspend, migrate a.s.o.
To do that, you will need to download the xs-tools.iso from XenServer 5.6fp1 to 
your XCP nodes and replace the original xs-tools.iso and install the new 
drivers.

Regarding the version change for XCP, that should not be an issue, but I am not 
sure about the XenServer drivers in XCP VMs. I am playing around with them for 
some time now and they work ok but an expert should answer if it's ok to use 
them for production or not since XenServer and XCP are different products.




From: 
[email protected]<mailto:[email protected]> 
[mailto:[email protected]<mailto:[email protected]>]
 On Behalf Of Lars Seeliger
Sent: Tuesday, February 15, 2011 10:32 PM
To: [email protected]<mailto:[email protected]>
Cc: [email protected]<mailto:[email protected]>
Subject: Re: [Xen-API] Re: [Xen-users] XCP and XenCenter

I appreciate you getting back to me, Todd.

Right now XenCenter integration is severely limited, feature-wise. I sincerely 
hope improvements are made soon, or a workaround such as that alluded to by 
Tomoiaga is provided.

Thanks for your time. And for an otherwise incredible product.
On 15 February 2011 21:22, Todd Deshane 
<[email protected]<mailto:[email protected]>> wrote:
Hi Lars,

I'm pretty sure the XenCenter compatibility is in the works. We might
not have all the kinks out by 1.0, but Jon should be able to confirm.

Also, I don't see where the IRC logs are stored either. I asked in the
#xen-api channel and will reply back if I hear anything.

We are in the process of documenting differences between XCP and XenServer here:
http://wiki.xensource.com/xenwiki/XCP_Docs

Thanks for the feedback and if I hear any news I'll write back either
directly to you or this thread.

Thanks,
Todd

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