XCP Is self contained and comes with an installer, the hypervisor and management stack. You should be up and going with XCP in 15 minutes. On 27 April 2011 18:50, Jon R. <jonr@destar.net> wrote:> Hello! > > Does XCP need to first have an OS installed then XCP installed on top of > that like Xen? > > I know the question is lame but I can''t seem to find a definitive answer. > > Thanks for any clarification, > > Jon > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hello! Does XCP need to first have an OS installed then XCP installed on top of that like Xen? I know the question is lame but I can''t seem to find a definitive answer. Thanks for any clarification, Jon _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Wednesday, April 27, 2011 09:48 AKDT, David Markey <admin@dmarkey.com> wrote:> XCP Is self contained and comes with an installer, the hypervisor and > management stack. > > > You should be up and going with XCP in 15 minutes. >Thanks for the quick response David. By self contained, do you mean that it has a complete OS that comes with XCP, like Ubuntu or CentOS, etc, etc. Or is it just a stripped bare bones install of just enough to run it? Thanks again, Jon David, sorry I replied back directly to you. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Wed, Apr 27, 2011 at 2:07 PM, Jon R. <jonr@destar.net> wrote:> > On Wednesday, April 27, 2011 09:48 AKDT, David Markey <admin@dmarkey.com> > wrote: > > > XCP Is self contained and comes with an installer, the hypervisor and > > management stack. > > > > > > You should be up and going with XCP in 15 minutes. > > > > Thanks for the quick response David. > > By self contained, do you mean that it has a complete OS that comes with > XCP, like Ubuntu or CentOS, etc, etc. Or is it just a stripped bare bones > install of just enough to run it? >Its basically a minimized CentOS 5.5 distro, with the XEN/XAPI bits on top, with an installer wrapped into an ISO> > Thanks again, > > Jon > > > David, sorry I replied back directly to you. > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
XCP is the free/opensource version of XenServer. It contains the OS, the hypervisor, and an API toolstack. The dom0 OS portion is somewhat stripped down. While XCP is based off of CentOS, the XCP install does not include everything that is normally included with CentOS. For example, CentOS supports InfiniBand, but XCP does not. -----Original Message----- From: xen-users-bounces@lists.xensource.com [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Jon R. Sent: Wednesday, April 27, 2011 1:08 PM To: xen-users@lists.xensource.com Subject: Re: [Xen-users] XCP Dom0? On Wednesday, April 27, 2011 09:48 AKDT, David Markey <admin@dmarkey.com> wrote:> XCP Is self contained and comes with an installer, the hypervisor and > management stack. > > > You should be up and going with XCP in 15 minutes. >Thanks for the quick response David. By self contained, do you mean that it has a complete OS that comes with XCP, like Ubuntu or CentOS, etc, etc. Or is it just a stripped bare bones install of just enough to run it? Thanks again, Jon David, sorry I replied back directly to you. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Wed, Apr 27, 2011 at 2:21 PM, <admin@xenhive.com> wrote:> XCP is the free/opensource version of XenServer. It contains the OS, the > hypervisor, and an API toolstack. The dom0 OS portion is somewhat stripped > down. While XCP is based off of CentOS, the XCP install does not include > everything that is normally included with CentOS. For example, CentOS > supports InfiniBand, but XCP does not. >Be nice to get Infiniband and FCoE support into XCP> -----Original Message----- > From: xen-users-bounces@lists.xensource.com > [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Jon R. > Sent: Wednesday, April 27, 2011 1:08 PM > To: xen-users@lists.xensource.com > Subject: Re: [Xen-users] XCP Dom0? > > > On Wednesday, April 27, 2011 09:48 AKDT, David Markey <admin@dmarkey.com> > wrote: > > > XCP Is self contained and comes with an installer, the hypervisor and > > management stack. > > > > > > You should be up and going with XCP in 15 minutes. > > > > Thanks for the quick response David. > > By self contained, do you mean that it has a complete OS that comes with > XCP, like Ubuntu or CentOS, etc, etc. Or is it just a stripped bare bones > install of just enough to run it? > > > Thanks again, > > Jon > > > David, sorry I replied back directly to you. > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Yes, it definitely would be nice. -----Original Message----- From: Outback Dingo [mailto:outbackdingo@gmail.com] Sent: Wednesday, April 27, 2011 1:31 PM To: admin@xenhive.com Cc: xen-users@lists.xensource.com Subject: Re: [Xen-users] XCP Dom0? On Wed, Apr 27, 2011 at 2:21 PM, <admin@xenhive.com> wrote: XCP is the free/opensource version of XenServer. It contains the OS, the hypervisor, and an API toolstack. The dom0 OS portion is somewhat stripped down. While XCP is based off of CentOS, the XCP install does not include everything that is normally included with CentOS. For example, CentOS supports InfiniBand, but XCP does not. Be nice to get Infiniband and FCoE support into XCP -----Original Message----- From: xen-users-bounces@lists.xensource.com [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Jon R. Sent: Wednesday, April 27, 2011 1:08 PM To: xen-users@lists.xensource.com Subject: Re: [Xen-users] XCP Dom0? On Wednesday, April 27, 2011 09:48 AKDT, David Markey <admin@dmarkey.com> wrote:> XCP Is self contained and comes with an installer, the hypervisor and > management stack. > > > You should be up and going with XCP in 15 minutes. >Thanks for the quick response David. By self contained, do you mean that it has a complete OS that comes with XCP, like Ubuntu or CentOS, etc, etc. Or is it just a stripped bare bones install of just enough to run it? Thanks again, Jon David, sorry I replied back directly to you. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
<peter.chiu@stfc.ac.uk>
2011-Apr-28 18:33 UTC
[Xen-users] Poor NFS Perofrmance on Dom0 Storage to native DomU
I set up Dom0 and a couple of DomU all with Suse Enterprise 11 SP1 on a DELL PowerEdge R710. I then NFS export a SATA 2TB disk on Dom0 to the 2 DomU guests.>From the 2 DomU guests, I can only get about 2MBytes/s using dd tests (with dd if=/dev/zero bs=1M count=1000).I doubt the problem is on NFS, because I set up similar Dom0 and DomU on two other DECLL PowerEdge R710s.>From these DomUs, I can get about 90MB/s on the same NFS mounted storage.So the problem seems to be relating how the Dom0 communicates with its native DomU guests. I check this using iperf, but found their speeds are in multiple of Gbits/s in both directions - the Dom0 has a 10G dual port Ethernet card. Iperf also give similar figures with DomUs from other physical servers. I checked through the Suse Enterprise doc on virtualisation, but cannot find any clue to explain why that is the case. Does anyone has any idea why? Thanks. Peter -- Scanned by iCritical. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Ciprian Dorin Craciun
2011-May-07 16:35 UTC
Re: [Xen-users] Poor NFS Perofrmance on Dom0 Storage to native DomU
On Thu, Apr 28, 2011 at 21:33, <peter.chiu@stfc.ac.uk> wrote:> I set up Dom0 and a couple of DomU all with Suse Enterprise 11 SP1 on a DELL PowerEdge R710. > > I then NFS export a SATA 2TB disk on Dom0 to the 2 DomU guests. > > >From the 2 DomU guests, I can only get about 2MBytes/s using dd tests (with dd if=/dev/zero bs=1M count=1000). > > > I doubt the problem is on NFS, because I set up similar Dom0 and DomU on two other DECLL PowerEdge R710s. > > >From these DomUs, I can get about 90MB/s on the same NFS mounted storage. > > > So the problem seems to be relating how the Dom0 communicates with its native DomU guests. > > I check this using iperf, but found their speeds are in multiple of Gbits/s in both directions - > the Dom0 has a 10G dual port Ethernet card. Iperf also give similar figures with DomUs from other physical servers. > > I checked through the Suse Enterprise doc on virtualisation, but cannot find any clue to explain why that is the case. > > Does anyone has any idea why? > > Thanks. > PeterI suspect I''ve hit the same problem some time ago with a Gentoo based dom0 and domu (Xen 3.4.x i think). But in my case the problem was even worst as the domu froze. Initially I''ve used NFS over TCP, and when I''ve switched to UDP and at least it didn''t freeze. But the write performance is still impacted. (I''ve not investigated any further as I''m using the NFS for sharing the Gentoo portage directory, which is now read-only on the domu). Please tell me if you''ve found the problem / solution. Ciprian. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users