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    XenServer vs ESXi

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    • DustinB3403D
      DustinB3403
      last edited by

      I can only assumed that they sold us the licensing for it, as they are pretty good with keeping microsoft at bay (I've never heard of any licensing issues with regards to that)

      But the implementation is just ass backwards. Export the DC02 functions if you must (build a new VM really) and perform a clean install is how it should've been done.

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

        @Carnival-Boy said:

        I'm not following you, I'm afraid. I assume the OP has the correct licences? I thought that when you install HyperV it kind of inserts the hypervisor underneath the existing Windows installation, so you end with a hypervisor and the existing Windows install running as a VM? So the physical DC becomes a virtual DC? Is that not how it works?

        Well yes and no. You are totally correct at the technology level. You install HyperV (role) and it inserts HyperV underneath the running OS as a shim (it actually reboots before this takes effect, for obvious reasons.) So it reboots to running HyperV on the bare metal and the previously bare metal OS of Windows because a VM known as the "host" VM or Microsoft confusing calls it the Physical VM (um what?!?)

        You can two licenses of Windows with each Windows 2012 Standard install. Two VMs on the same box, that is, plus one "physical" license for the host VM. The Host VM only qualifies for this license if it runs nothing except the HyperV management, any use of it for anything like DC, IIS, SQL Server, File Server, Spiceworks or any other application or role violates the licenses.

        So you have two choices when using it this way. Either you move the services off of the Host VM and put them on one of the two Guest VMs. Or you consume one of your Guest VM licenses to make the running of services on the Host VM allowed.

        At the end of the day, you get no freebies from using HyperV compared to other hypervisors but you get no penalties either. Because it needs Windows to manage it, they give you a special management only license for that one use case.

        So there is a way to do what you are describing but it doesn't work out super well for you (but works) but generally people mess it up and end up not being properly licensed and overusing what they have.

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

          Trust me, I really hate the MS terminology on this stuff because it is designed to be confusing in a weird way with a weird hope that it would make the system "easy" for non-technical people. Sadly, you can't do that with virtualization and they made it so confusing that even IT Pros can't navigate the licensing.

          1 Reply Last reply Reply Quote 1
          • scottalanmillerS
            scottalanmiller @DustinB3403
            last edited by

            @DustinB3403 said:

            I can only assumed that they sold us the licensing for it, as they are pretty good with keeping microsoft at bay (I've never heard of any licensing issues with regards to that)

            Nothing like double selling licensing.... be a little lazy, do less work, make extra money off of the customer for no effort. Slick.

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

              That they are the ones selling you the licenses explains the behaviour. I'm assuming that they are the ones selling the ESXi too. Which explains pretty much all of the behaviour.

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

                Don't know if anything in here helps, but it might:

                http://mangolassi.it/topic/5272/somethings-you-need-to-know-about-hyperv

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

                  So back to the case at hand:

                  XenServer has many advantages...

                  • You already know it.
                  • It is incredibly easy to use.
                  • It is very performant and this has been shown.
                  • The devil that you know.
                  • Zero cost for everything, totally zero.
                  • Full Paravirtualization Option for Linux workloads.
                  • Updates are also free.
                  • No overhead cost for license management.
                  • No salesman providing guidance.
                  • Backups are possible for free.
                  • Far greater feature set than any possible VMware option.
                    • HA is free
                    • vMotion is free
                    • Storage vMotion is free
                    • Many more free features
                  • No scale limitations (within reason)
                  • Local support available
                  • Minimal technical debt incurred.
                  coliverC 1 Reply Last reply Reply Quote 2
                  • scottalanmillerS
                    scottalanmiller
                    last edited by

                    @Carnival-Boy if you are using Windows Server Datacenter licensing then you are completely free to utilize the physical VM for anything that you want as you have licensed the entire machine. There is no overuse possible in that case. But in the case where you have the DC license, there is no incentive to trying to use the Physical / Host VM for anything extra since you can always make another VM for whatever workload you were thinking of running there.

                    1 Reply Last reply Reply Quote 0
                    • coliverC
                      coliver @DustinB3403
                      last edited by

                      @DustinB3403 said:

                      The trouble as far as I can tell with the Hyper-V setup is that our MSP sold it just to sell it, rather than "Oh hey spend X and build a proper Hypervisor, we'll just use your secondary DC to run these machines"

                      Which "OK" it works but one of these VM's runs a CPU intensive process, and in only able to use 4CPU's because of the limitations of the host hardware.

                      If I moved this to "my" (and I use my liberally) XenServer I could allocate 12 cores to it, and 32GB of memory (if we bought more to add into the host) and the team that uses it would never have a complaint.

                      Its the poor proposals after another that are getting to me. It's just not my place to start looking for another MSP... even though I've considered it.

                      It is your place to point out poor decision making and poor proposals of the MSP though. If this were happening to my company I would bring this up to my boss (and his boss) almost immediately. Especially if they are going to spend money on a product that has no intrinsic benefit over what you are currently using. Especially since you already have that solution running and proven in house.

                      scottalanmillerS C 2 Replies Last reply Reply Quote 1
                      • coliverC
                        coliver @DustinB3403
                        last edited by

                        @DustinB3403 said:

                        Nope. . . Hyper-V was installed directly into the existing DC02, and VM's setup while the system was functioning.

                        Talk about red flags... not only does this VAR/MSP not understand how Hyper-V, a product they had proposed, works but they don't understand the licensing limitation/expectation of it...

                        scottalanmillerS 1 Reply Last reply Reply Quote 1
                        • DashrenderD
                          Dashrender @scottalanmiller
                          last edited by

                          @scottalanmiller said:

                          @DustinB3403 said:

                          Its the poor proposals after another that are getting to me. It's just not my place to start looking for another MSP... even though I've considered it.

                          Here is the big question... is it your job to care about the company or not to care? It's an honest question. Lots of companies would say that it is not your job to be involved. Others would be furious to find out that you knew an MSP was screwing them over and that a manager was letting it happen and not even pushing back for reasonable solutions and you didn't go up the chain to let someone know. Figuring out what your role in is key.

                          Boy this is something I feel completely undefined on.

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

                            @Dashrender said:

                            Boy this is something I feel completely undefined on.

                            It sounds pretty obvious, right? But when you actually stop and ask the question, often it isn't really clear if you are supposed to care or not! It's one of those places where everyone thinks that they would have a clear answer until really pushed on it. And in reality, lots of companies don't want you to care. It's actually quite common.

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

                              @coliver said:

                              @DustinB3403 said:

                              Nope. . . Hyper-V was installed directly into the existing DC02, and VM's setup while the system was functioning.

                              Talk about red flags... not only does this VAR/MSP not understand how Hyper-V, a product they had proposed, works but they don't understand the licensing limitation/expectation of it...

                              Or worse, they DO understand the licensing! Which is worse, being clueless on the basics or being aware of what they were doing and still doing it?

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

                                @coliver said:

                                It is your place to point out poor decision making and poor proposals of the MSP though.

                                That's the question. Is it?

                                1 Reply Last reply Reply Quote 0
                                • coliverC
                                  coliver @scottalanmiller
                                  last edited by

                                  @scottalanmiller said:

                                  So back to the case at hand:

                                  XenServer has many advantages...

                                  • You already know it.
                                  • It is incredibly easy to use.
                                  • It is very performant and this has been shown.
                                  • The devil that you know.
                                  • Zero cost for everything, totally zero.
                                  • Full Paravirtualization Option for Linux workloads.
                                  • Updates are also free.
                                  • No overhead cost for license management.
                                  • No salesman providing guidance.
                                  • Backups are possible for free.
                                  • Far greater feature set than any possible VMware option.
                                    • HA is free
                                    • vMotion is free
                                    • Storage vMotion is free
                                    • Many more free features
                                  • No scale limitations (within reason)
                                  • Local support available
                                  • Minimal technical debt incurred.

                                  This is a great list. Covers pretty much all the main bases.

                                  1 Reply Last reply Reply Quote 1
                                  • dafyreD
                                    dafyre
                                    last edited by

                                    I care... I'll always care... Especially if I like my job... I was at my last job about 3 years too long...but I hung around because I cared... I'd bring this up to my boss in a heart beat... With a big ? hanging over my head, like "Why?" ... and he can either tell me the reason and give me a chance to shoot holes in his reasons, or tell me not to worry about it... At which point, I still care about it, but my duty is done.

                                    DashrenderD 1 Reply Last reply Reply Quote 0
                                    • DashrenderD
                                      Dashrender @dafyre
                                      last edited by

                                      @dafyre said:

                                      I care... I'll always care... Especially if I like my job... I was at my last job about 3 years too long...but I hung around because I cared... I'd bring this up to my boss in a heart beat... With a big ? hanging over my head, like "Why?" ... and he can either tell me the reason and give me a chance to shoot holes in his reasons, or tell me not to worry about it... At which point, I still care about it, but my duty is done.

                                      I suffer the same problem! I do care.

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

                                        @scottalanmiller said:

                                        @coliver said:

                                        @DustinB3403 said:

                                        Nope. . . Hyper-V was installed directly into the existing DC02, and VM's setup while the system was functioning.

                                        Talk about red flags... not only does this VAR/MSP not understand how Hyper-V, a product they had proposed, works but they don't understand the licensing limitation/expectation of it...

                                        Or worse, they DO understand the licensing! Which is worse, being clueless on the basics or being aware of what they were doing and still doing it?

                                        The former gives them the benefit of the doubt the latter seems almost malicious although this is another case of, "Does it matter?" While the latter is worse then the former they both equally demonstrate how inadequate this VAR is.

                                        1 Reply Last reply Reply Quote 1
                                        • C
                                          Carnival Boy @scottalanmiller
                                          last edited by

                                          @scottalanmiller said:

                                          So there is a way to do what you are describing but it doesn't work out super well for you (but works) but generally people mess it up and end up not being properly licensed and overusing what they have.

                                          I think I've got you. So the I'm guessing the correct approach would be something like:
                                          Demote the DC
                                          Remove the DC from the domain
                                          Do a fresh, clean install of Windows on the host
                                          Install HyperV
                                          Install a fresh, clean VM of Windows and setup as new DC

                                          Which, IIRC, is exactly what we did with ESXi, except that we installed the hypervisor directly and then install VCenter appliance to manage it.

                                          coliverC scottalanmillerS 2 Replies Last reply Reply Quote 0
                                          • coliverC
                                            coliver @Carnival Boy
                                            last edited by coliver

                                            @Carnival-Boy said:

                                            @scottalanmiller said:

                                            So there is a way to do what you are describing but it doesn't work out super well for you (but works) but generally people mess it up and end up not being properly licensed and overusing what they have.

                                            I think I've got you. So the I'm guessing the correct approach would be something like:
                                            Demote the DC
                                            Remove the DC from the domain
                                            Install HyperV Server 2012R2
                                            Install a fresh, clean VM of Windows and setup as new DC

                                            Which, IIRC, is exactly what we did with ESXi, except that we installed the hypervisor directly and then install VCenter appliance to manage it.

                                            You don't really need a full version of Windows Server for your hypervisor in this case... Hyper-V Server 2012R2 is exactly the same thing just with all the extras cut out of it.

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