I will limit my question to two products then, namely Xensource's and VMWare's products. Anyone ? Johan VLIZ Flanders Marine Institute Troy Dawson wrote: > Hi Johan, > XenExpress, XenServer, and XenEnterprise are all products of > XenSource, not RedHat. > They are all "added value" that XenSource adds to Xen. > > RedHat starts with Xen and add's their own "added value". Their > limitation of 4 concurrent VM's is a support limitation. Basically > their way of saying "If you do this, and it breaks, don't come runing > to us." > BUT ... there is a hardware limitation that I've been seeing. > Basically if I try to run too many virtual machines on a machine > without enough memory, at some point I get a "Hay ... you don't have > enough memory to squeeze in another virtual machine" message. It > doesn't really say that, but that is what it means. > > So back to your questions. I'm not going to answer them, but I am > going to point out that you really are asking to compare 3 different > products, not two. > > You want to see the comparison between XenSource's products, VMWare's > products, and RedHat's Virtual Products. > > Troy > > Johan Mares wrote: >> I've posted previously about Xen. But know I have some more specific >> questions. >> >> In RHEL5 Xen is limited to 4 concurrent VMs, which could mean that >> RHEL5 ships with Xen Express (the free starter package). In one of >> the replies on my previous post it was mentioned that there were no >> such restrictions on the number of concurrent VMs in SL5. Can someone >> give an explanation for the difference in concurrent VMs for Xen in >> SL5 versus RHEL5 ? >> >> Without having to rtfm, what is Xen 3.0 in comparison to XenExpress >> (free version), XenServer (only Windows) and XenEnterprise (windows >> and linux) ? Is Xen 3.0 the basis on which the other 3 are build and >> then you just pay for the comfort of someone else having done it for >> you, some management tools and the support ? >> >> Can someone compare Xen (free & commercial) with VMware >> Infrastructure (starter to enterprise) ? When to use what ? >> Difference in features. Because VMWare Infrastructure , especially >> the enterprise, has a serious price tag. >> >> We would use virtualization for webservers, files and mysql-database >> servers, grid-computing, ease of setting up test and development >> servers. >> >> thanx, >> >> Johan >> > >