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    Xen and KVM - Who is using what and why?

    IT Discussion
    xen xenserver kvm virtualization hypervisor scale
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    • scottalanmillerS
      scottalanmiller @FATeknollogee
      last edited by

      @FATeknollogee said in Xen and KVM - Who is using what and why?:

      Are you saying KVM is not "superior/better" (insert your fav adjective) to XS?

      I don't think that either he nor I have said anything of the sort, in either direction, in the thread. No one has gotten to that point yet. We are still just trying to explain the meaning of the answer to the initial question and dealing with the incredible amount of ensuing confusion.

      1 Reply Last reply Reply Quote 0
      • JaredBuschJ
        JaredBusch @FATeknollogee
        last edited by

        @FATeknollogee said in Xen and KVM - Who is using what and why?:

        Are you saying KVM is not "superior/better" (insert your fav adjective) to XS?

        @scottalanmiller is not saying that at all. Anyone else is just throwing poo like a monkey.

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        • scottalanmillerS
          scottalanmiller
          last edited by

          If I was to back up.... I think there is something important being danced around and that is that while someone might prefer one hypervisor to another, largely they don't matter today (except for VMware's licensing aspect.) Hypervisors are commodity and they are all fine. The ecosystems around them are vastly more important. Talking about Xen vs. KVM is academic and nearly esoteric. What matters is what you want to do with it and what ecosystem is providing the tooling that you want to use.

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          • scottalanmillerS
            scottalanmiller
            last edited by

            It is interesting for IT people to discuss the merits of Xen vs KVM, and I'm happy to do so, but at the end of the day, the quality or features of Xen vs. KVM are almost never relevant to a business decision around which we will use in a deployment outside of a lab environment.

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            • FATeknollogeeF
              FATeknollogee
              last edited by

              Let me try to "re-phrase" the question...
              ...btw @JaredBusch I like the "poo as monkey phrase..."

              A lot of folks on this site have praised/raved about the XS/XOA combo.

              Is KVM worthy of being looked at?

              scottalanmillerS JaredBuschJ 2 Replies Last reply Reply Quote 0
              • scottalanmillerS
                scottalanmiller
                last edited by

                It is not unlike the Linux discussions. People often ask me "If you prefer CentOS, why did you deploy Ubuntu?" And the answer is so obvious that I'm always confused by the question - because the thing that I needed to run runs best or only on Ubuntu.

                No matter how much I prefer CentOS, it doesn't mean I would chose it over the better business choice, the differences between CentOS and Ubuntu are simply too small.

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                • DustinB3403D
                  DustinB3403
                  last edited by

                  I think the original question would make more sense like this.

                  "If there was a vendor who offered a Hyperconverged solution like the HC3, but with XenServer, would you have picked that vendor over scale and why?"

                  scottalanmillerS 1 Reply Last reply Reply Quote 0
                  • scottalanmillerS
                    scottalanmiller @FATeknollogee
                    last edited by

                    @FATeknollogee said in Xen and KVM - Who is using what and why?:

                    A lot of folks on this site have praised/raved about the XS/XOA combo.

                    Is KVM worthy of being looked at?

                    That's why we praise it, because it's a combo (or bundle.) I've even proposed calling it XS/XO (btw, many of us have never used XOA, not sure how many people are promoting that) instead of XS to make it clear that it is the combination that makes it make sense.

                    KVM is a great product. But you can't compare XS to KVM let alone XS/XO to KVM. If you want to do that, you need to determine your entire KVM stack to compare against. For example, is Scale HC3 (KVM) worth comparing to XS/XO (Xen)? Yes. Those are far more comparable items.

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                    • scottalanmillerS
                      scottalanmiller @DustinB3403
                      last edited by

                      @DustinB3403 said in Xen and KVM - Who is using what and why?:

                      I think the original question would make more sense like this.

                      "If there was a vendor who offered a Hyperconverged solution like the HC3, but with XenServer, would you have picked that vendor over scale and why?"

                      And it would still come back to... it's the solution that matters, not "how they arrived at the solution."

                      FATeknollogeeF 1 Reply Last reply Reply Quote 0
                      • scottalanmillerS
                        scottalanmiller
                        last edited by

                        This is, in the most literal sense, getting caught up in details "under the hood."

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                        • JaredBuschJ
                          JaredBusch @FATeknollogee
                          last edited by

                          @FATeknollogee said in Xen and KVM - Who is using what and why?:

                          Let me try to "re-phrase" the question...
                          ...btw @JaredBusch I like the "poo as monkey phrase..."

                          A lot of folks on this site have praised/raved about the XS/XOA combo.

                          Is KVM worthy of being looked at?

                          There is a bit of fanboy cult thing to some of the the XS love around here.

                          DustinB3403D FATeknollogeeF 2 Replies Last reply Reply Quote 0
                          • DustinB3403D
                            DustinB3403 @JaredBusch
                            last edited by

                            @JaredBusch said in Xen and KVM - Who is using what and why?:

                            There is a bit of fanboy cult thing to some of the the XS love around here.

                            As @scottalanmiller said above, it's the combination of the tools to make a robust solution that create fanboys.

                            @scottalanmiller said in Xen and KVM - Who is using what and why?:

                            For example, is Scale HC3 (KVM) worth comparing to XS/XO (Xen)? Yes. Those are far more comparable items.

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                            • DashrenderD
                              Dashrender @JaredBusch
                              last edited by

                              @JaredBusch said in Xen and KVM - Who is using what and why?:

                              @Dashrender said in Xen and KVM - Who is using what and why?:

                              @scottalanmiller said in Xen and KVM - Who is using what and why?:

                              We've primarily moved to KVM before we are running Scale HC3 which has it built in under the hood.

                              So you like KVM these days better than XS?

                              Really a WTF moment to start off your entire involvement in the thread.

                              Scott said 'before' which lead to my question.

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                              • FATeknollogeeF
                                FATeknollogee @scottalanmiller
                                last edited by

                                @scottalanmiller said in Xen and KVM - Who is using what and why?:

                                And it would still come back to... it's the solution that matters, not "how they arrived at the solution."

                                "how they arrived at the solution" is a big part of the equation?
                                Would you have arrived at the same solution if the cost was $xxx?

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                                • FATeknollogeeF
                                  FATeknollogee @JaredBusch
                                  last edited by

                                  @JaredBusch said in Xen and KVM - Who is using what and why?:

                                  There is a bit of fanboy cult thing to some of the the XS love around here.

                                  Time to start the Hyper-V cult?

                                  JaredBuschJ 1 Reply Last reply Reply Quote 0
                                  • JaredBuschJ
                                    JaredBusch @FATeknollogee
                                    last edited by JaredBusch

                                    @FATeknollogee said in Xen and KVM - Who is using what and why?:

                                    @JaredBusch said in Xen and KVM - Who is using what and why?:

                                    There is a bit of fanboy cult thing to some of the the XS love around here.

                                    Time to start the Hyper-V cult?

                                    Absolutely not. Any cult is bad, Christian, Muslim, Jewish, Wicca, Cthulu, wtf ever. This is business not religion.

                                    FATeknollogeeF 1 Reply Last reply Reply Quote 1
                                    • FATeknollogeeF
                                      FATeknollogee @JaredBusch
                                      last edited by FATeknollogee

                                      @JaredBusch said in Xen and KVM - Who is using what and why?:

                                      Absolutely not. Any cult is bad, Christian, Muslim, Jewish, Wicca, Cthulu, wtf ever. This is business not religion.

                                      These days I simply assume religion is a biz, it helps me wade through all the BS quicker 😄

                                      btw, I do not subscribe to the anti MSFT theme that seems to be quite prevalent on this site

                                      scottalanmillerS 1 Reply Last reply Reply Quote 0
                                      • scottalanmillerS
                                        scottalanmiller @FATeknollogee
                                        last edited by

                                        @FATeknollogee said in Xen and KVM - Who is using what and why?:

                                        btw, I do not subscribe to the anti MSFT theme that seems to be quite prevalent on this site

                                        Nor do I. And I don't think that there is as much as you think. But it certainly exists. I recommend Windows all the time, when it is appropriate. I'm way more of a Microsoft supporter than anyone that still runs Windows 7, IMHO.

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                                        • FATeknollogeeF
                                          FATeknollogee @stacksofplates
                                          last edited by

                                          @stacksofplates said in Xen and KVM - Who is using what and why?:

                                          I use KVM. It's built into Red Hat, and really easy to use.

                                          What makes it really easy to use & vs what other platforms?

                                          stacksofplatesS 1 Reply Last reply Reply Quote 0
                                          • FATeknollogeeF
                                            FATeknollogee @stacksofplates
                                            last edited by

                                            @stacksofplates said in Xen and KVM - Who is using what and why?:

                                            @scottalanmiller said in Xen and KVM - Who is using what and why?:

                                            KVM lacked tools like XenServer and XenOrchestra, backup vendor support and so forth

                                            It hasn't. Virt-Manager has been around for a long time. XenServer doesn't have any backup vendor support. The only support is agent based, which is exactly what KVM has. You also have backup options through QEMU and libvirt.

                                            Does XOA not count as backup vendor support?

                                            Is anyone developing a host based backup for KVM?

                                            What's the difference between Virt-Manager & oVirt?

                                            stacksofplatesS 1 Reply Last reply Reply Quote 0
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