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    XenServer - CentOS7 with GUI

    Scheduled Pinned Locked Moved IT Discussion
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    • scottalanmillerS
      scottalanmiller @Alex Sage
      last edited by

      @anonymous said:

      Doh, sorry. XenServer 6.5 How do I know if I am using PV or full virt?

      Easiest way is from the templates chosen. What templates are you using for these installs?

      A 1 Reply Last reply Reply Quote 1
      • A
        Alex Sage @scottalanmiller
        last edited by Alex Sage

        @scottalanmiller said:

        What templates are you using for these installs?

        Other Media.

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

          @anonymous said:

          @scottalanmiller said:

          What templates are you using for these installs?

          Other Media.

          Oh, try using the ones made for these 🙂 That's likely the issue.

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

            What made you choose to use non-optimized settings for Linux?

            A 1 Reply Last reply Reply Quote 0
            • A
              Alex Sage @scottalanmiller
              last edited by

              @scottalanmiller said:

              What made you choose to use non-optimized settings for Linux?

              The suggestion of the community?

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

                @anonymous said:

                The suggestion of the community?

                THIS community? What reason did people give for not using the optimized settings? They are there for a reason, to make sure that you have the right drivers, best performance, most stability, etc. There are cases where you need to not use them, but it means you have to worry about the drivers and such yourself. I bet you will find using XenServer as designed that you will get good stability and performance.

                CentOS and Fedora will use the same template. Ubuntu and Mint will both use Ubuntu. Mint is Ubuntu 14.04.

                stacksofplatesS A 2 Replies Last reply Reply Quote 0
                • stacksofplatesS
                  stacksofplates @scottalanmiller
                  last edited by

                  @scottalanmiller said:

                  @anonymous said:

                  The suggestion of the community?

                  THIS community? What reason did people give for not using the optimized settings? They are there for a reason, to make sure that you have the right drivers, best performance, most stability, etc. There are cases where you need to not use them, but it means you have to worry about the drivers and such yourself. I bet you will find using XenServer as designed that you will get good stability and performance.

                  CentOS and Fedora will use the same template. Ubuntu and Mint will both use Ubuntu. Mint is Ubuntu 14.04.

                  You said that you use it?

                  0_1455590045261_other media.png

                  scottalanmillerS 1 Reply Last reply Reply Quote 0
                  • stacksofplatesS
                    stacksofplates @Alex Sage
                    last edited by

                    @anonymous said:

                    0_1455588471614_2016-02-15 21_06_46-XenCenter.png

                    That's a Gnome 3 error. How much RAM is assigned to this VM?

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

                      @johnhooks said:

                      @scottalanmiller said:

                      @anonymous said:

                      The suggestion of the community?

                      THIS community? What reason did people give for not using the optimized settings? They are there for a reason, to make sure that you have the right drivers, best performance, most stability, etc. There are cases where you need to not use them, but it means you have to worry about the drivers and such yourself. I bet you will find using XenServer as designed that you will get good stability and performance.

                      CentOS and Fedora will use the same template. Ubuntu and Mint will both use Ubuntu. Mint is Ubuntu 14.04.

                      You said that you use it?

                      0_1455590045261_other media.png

                      That's a lot different than recommending it. I use it for specific things. What was the context around that, though? What was I saying that I use the other media for?

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

                        @scottalanmiller said:

                        @johnhooks said:

                        @scottalanmiller said:

                        @anonymous said:

                        The suggestion of the community?

                        THIS community? What reason did people give for not using the optimized settings? They are there for a reason, to make sure that you have the right drivers, best performance, most stability, etc. There are cases where you need to not use them, but it means you have to worry about the drivers and such yourself. I bet you will find using XenServer as designed that you will get good stability and performance.

                        CentOS and Fedora will use the same template. Ubuntu and Mint will both use Ubuntu. Mint is Ubuntu 14.04.

                        You said that you use it?

                        0_1455590045261_other media.png

                        That's a lot different than recommending it. I use it for specific things. What was the context around that, though? What was I saying that I use the other media for?

                        It was this post

                        http://mangolassi.it/topic/7487/xenserver-memory-management/2

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

                          Just, just found it from Google. I certainly wasn't recommending anything. The reason that I was mentioning it is because we often install 512MB systems (always text based.) And often OSes that are not supported by XenServer officially as well. So there is a reason for it. But if running a stock CentOS 7, I would normally look at at least starting with the templates. At very least, worth testing them here.

                          stacksofplatesS 1 Reply Last reply Reply Quote 1
                          • A
                            Alex Sage @scottalanmiller
                            last edited by

                            @scottalanmiller http://mangolassi.it/topic/7487/xenserver-memory-management/10

                            1 Reply Last reply Reply Quote 0
                            • A
                              Alex Sage @stacksofplates
                              last edited by

                              @johnhooks 2GB

                              scottalanmillerS stacksofplatesS 2 Replies Last reply Reply Quote 0
                              • stacksofplatesS
                                stacksofplates @scottalanmiller
                                last edited by

                                @scottalanmiller said:

                                Just, just found it from Google. I certainly wasn't recommending anything. The reason that I was mentioning it is because we often install 512MB systems (always text based.) And often OSes that are not supported by XenServer officially as well. So there is a reason for it. But if running a stock CentOS 7, I would normally look at at least starting with the templates. At very least, worth testing them here.

                                I use it a lot because of the same reason. The template I think gives 2 GiB by default, which is a lot for what I'm normally building.

                                So here's another question according to their documentation:

                                The Linux templates create Pure Virtual (PV) guests, as opposed to the HVM guests created by the Windows and Other Install Media templates. Other Install Media template Linux installations are not supported.

                                So does installing XenTools give you PV also, or do you have to use a template?

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

                                  @anonymous said:

                                  @johnhooks 2GB

                                  Should be plenty, I doubt that it is a memory issue. Most likely a driver one.

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

                                    @johnhooks said:

                                    So does installing XenTools give you PV also, or do you have to use a template?

                                    You need to the template. Drives cannot make something PV. PV is unique to Xen and the Xentools only exist for when you are not PV.

                                    If you are doing a non-templated install, then you need the XenTools installed separately.

                                    stacksofplatesS 1 Reply Last reply Reply Quote 0
                                    • stacksofplatesS
                                      stacksofplates @Alex Sage
                                      last edited by

                                      @anonymous said:

                                      @johnhooks 2GB

                                      I'm building one right now, I'll let you know what happens.

                                      1 Reply Last reply Reply Quote 0
                                      • A
                                        Alex Sage
                                        last edited by

                                        Trying again with the correct template.

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

                                          @scottalanmiller said:

                                          If you are doing a non-templated install, then you need the XenTools installed separately.

                                          Right that's what I was asking. If I use other media, and then install xentools from the iso, is it PV then or still HVM?

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

                                            @anonymous said:

                                            Trying again with the correct template.

                                            I wouldn't say "correct", but let's say "standard." It's the most common approach to handling those workloads. Nothing wrong with going non-PV or non-template, but it means more work on your end, like getting the XenTools installed and dealing with driver selection.

                                            1 Reply Last reply Reply Quote 0
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