Hi, Is this possible to make a xen VM to use CPU resources from other servers, using the network? Regards, Thiago _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Mon, Nov 2, 2009 at 5:58 AM, Thiago Vinhas <thiago@simpleweb.com.br> wrote:> Hi, > > Is this possible to make a xen VM to use CPU resources from other servers, > using the network?AFAIK, no. Closest thing is probably using shared storage, like nfs/iscsi SAN. But even then memory and CPU must be on the same server. -- Fajar _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Fajar A. Nugraha wrote:> On Mon, Nov 2, 2009 at 5:58 AM, Thiago Vinhas <thiago@simpleweb.com.br> wrote: >> Hi, >> >> Is this possible to make a xen VM to use CPU resources from other servers, >> using the network? > > AFAIK, no. > Closest thing is probably using shared storage, like nfs/iscsi SAN. > But even then memory and CPU must be on the same server. >And that could be possible with Xen cloud? I''m not so involved in this project yet, but under the definition of ''cloud'' I guess it could be possible... -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkru1wkACgkQGNJOcRr8JkI7jwCgrct1+4Ps4ks0+hu60ADAZWvK hVcAoLEmC8bPQ6RvLlaB7tfZFRpyD0VJ =es9M -----END PGP SIGNATURE----- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Mon, Nov 2, 2009 at 7:56 PM, Boris Quiroz <boris.quiroz@acepta.com> wrote:>>> Is this possible to make a xen VM to use CPU resources from other servers, >>> using the network? >> >> AFAIK, no. >> Closest thing is probably using shared storage, like nfs/iscsi SAN. >> But even then memory and CPU must be on the same server. >> > And that could be possible with Xen cloud? I''m not so involved in this > project yet, but under the definition of ''cloud'' I guess it could be > possible...If I understand correctly, Xen cloud would be a bunch of dom0s on the same L2 network sharing the same virtualized large storage. You should be able to easily migrate domU between dom0s, but a domU can not exceed the sizing of its dom0. -- Fajar _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Fajar A. Nugraha wrote:> On Mon, Nov 2, 2009 at 7:56 PM, Boris Quiroz <boris.quiroz@acepta.com> wrote: >>>> Is this possible to make a xen VM to use CPU resources from other servers, >>>> using the network? >>> AFAIK, no. >>> Closest thing is probably using shared storage, like nfs/iscsi SAN. >>> But even then memory and CPU must be on the same server. >>> >> And that could be possible with Xen cloud? I''m not so involved in this >> project yet, but under the definition of ''cloud'' I guess it could be >> possible... > > If I understand correctly, Xen cloud would be a bunch of dom0s on the > same L2 network sharing the same virtualized large storage. You should > be able to easily migrate domU between dom0s, but a domU can not > exceed the sizing of its dom0. >Obviously. The physical layer is always the limit =) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkrwSG0ACgkQGNJOcRr8JkJ17wCfWRKYlJf/7ab3UIoPTMiPxcbD NLsAn2NOh5xRII32YtOywz5F6q+6qqf3 =iTwG -----END PGP SIGNATURE----- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
The closest you can really come to a domU running in two places at once is state synchronization, where two VMs memory, CPU, and storage states are kept consistent. Kemari is one option for something like this, and you can see the kind of performance impact (~30-50% depending on the fabric) that just -synchronization- entails. http://www.osrg.net/kemari/download/xen_summit_presentation_final.pdf Best Regards, Nathan Eisenberg _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users