I have a problem with the nasted Xen. I have a processore that supports HVM, I have installed Debian Lenny, then I have installed Xen 3.2.0, then I have created a VM in HVM mode. My question is can be created one other VM in HVM mode? tk -- Angelo Maurizio Alfano "Dance before the police come" _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Mon, Oct 5, 2009 at 09:43, angelo alfano <angeloalfa@gmail.com> wrote:> I have a problem with the nasted Xen. > > I have a processore that supports HVM, I have installed Debian Lenny, then I > have installed Xen 3.2.0, then I have created a VM in HVM mode. > My question is can be created one other VM in HVM mode?Confusing.... I''m not sure what this has to do with nesting Xen... which CAN be done, but should NOT be done, as you get no benefit from doing this other than just the pure fun of doing it. HOWEVER, your actual question seems to be: "I have installed Debian Lenny on a computer that supports hardware virtualization. I have installed Xen 3.2.0 on that system, and created one HVM guest. Can I create another HVM guest on the same system?? If THAT is your question, then yes, by all means. That''s the point of virtualization... you can run as many VMs on your Xen system as your hardware can reasonablly support. And by reasonably support, I mean, can support without drastic cuts in VM performance or usablility. For Paravirtualized VMs, the most I''ve ever been able to install on a Xen system was about 100 (ran out of storage at that point). BUT the most I was ever able to actually start and boot was about 48. By the time the 48th VM had powered on, ALL the VMs were so sluggish as to be useless, and most couldn''t even finish the boot process due to the lack of resources. For HVM guests, the numbers are a little lower, than that, mainly because I never really tried any more than about 20 or so HVM guests on one system. So yeah, you can run more than one HVM VM on your machine. Cheers Jeff -- Stephen Leacock - "I detest life-insurance agents: they always argue that I shall some day die, which is not so." - http://www.brainyquote.com/quotes/authors/s/stephen_leacock.html _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
>>> On 2009/10/05 at 07:43, angelo alfano <angeloalfa@gmail.com> wrote: > I have a problem with the nasted Xen. > > I have a processore that supports HVM, I have installed Debian Lenny, then I > have installed Xen 3.2.0, then I have created a VM in HVM mode. > My question is can be created one other VM in HVM mode? > > tkWhy do you want to do this? -------- This e-mail may contain confidential and privileged material for the sole use of the intended recipient. If this email is not intended for you, or you are not responsible for the delivery of this message to the intended recipient, please note that this message may contain SEAKR Engineering (SEAKR) Privileged/Proprietary Information. In such a case, you are strictly prohibited from downloading, photocopying, distributing or otherwise using this message, its contents or attachments in any way. If you have received this message in error, please notify us immediately by replying to this e-mail and delete the message from your mailbox. Information contained in this message that does not relate to the business of SEAKR is neither endorsed by nor attributable to SEAKR. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Mon, Oct 5, 2009 at 6:43 AM, angelo alfano <angeloalfa@gmail.com> wrote:> I have a problem with the nasted Xen. > > I have a processore that supports HVM, I have installed Debian Lenny, then > I have installed Xen 3.2.0, then I have created a VM in HVM mode. > My question is can be created one other VM in HVM mode? > > tk > > -- > Angelo Maurizio Alfano > "Dance before the police come" >The last time I checked you could run PV guests inside of an HVM DomU but you couldn''t go further. For instance you couldn''t have DomU inside of DomU inside of DomU. If this is what you need then you may want to check out KVM because it''s supporting the hardware functions for nesting VM. This would be the proper way of nesting. I''ve not nested with KVM though. Be aware that nesting in Xen is not very effecient or at least it wasn''t. I don''t think adding support for nesting in hardware is a very high priority for the xen developers. Grant McWilliams _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users