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    SAN LUNs Do Not Act Like NAS Shares

    Scheduled Pinned Locked Moved IT Discussion
    sannasstorage
    62 Posts 5 Posters 31.1k Views
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    • scottalanmillerS
      scottalanmiller @ntoxicator
      last edited by

      @ntoxicator said:

      Great it can move the storage disk over while its running. However, users are constantly writing data to it as its an SMB Share from Windows Domain controller

      That is exactly what XenMotion is for. If users were not writing to it, you would have no need for XenMotion, you could just copy.

      1 Reply Last reply Reply Quote 1
      • ntoxicatorN
        ntoxicator
        last edited by

        Thank you. I will look into it?? As Within XenCenter, I click the XenServer node and the disk attached and when I click "move" it throws me an error.

        however, when the VM is shut down - i can move the disk without problem..

        Its just concerning that its a Windows Server domain, with shares. How would it still be able to write the data to the new Storage Repository and put it back together and be fine? meh

        coliverC 1 Reply Last reply Reply Quote 0
        • ntoxicatorN
          ntoxicator
          last edited by

          @scottalanmiller said:

          XenMotion

          Article I found
          https://www.citrix.com/blogs/2012/08/24/storage_xenmotion/

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

            @ntoxicator said:

            Thank you. I will look into it?? As Within XenCenter, I click the XenServer node and the disk attached and when I click "move" it throws me an error.

            however, when the VM is shut down - i can move the disk without problem..

            Its just concerning that its a Windows Server domain, with shares. How would it still be able to write the data to the new Storage Repository and put it back together and be fine? meh

            It's all block data. It doesn't really care what is sitting on top of it. What version of XenServer are you running?

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

              @ntoxicator said:

              @scottalanmiller said:

              XenMotion

              Article I found
              https://www.citrix.com/blogs/2012/08/24/storage_xenmotion/

              2012... back when it was a Citrix product. We mean XenMotion now, not then 😉 Citrix donated the entire XenServer project to Linux Foundation since 2012.

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

                @scottalanmiller said:

                @ntoxicator said:

                @scottalanmiller said:

                XenMotion

                Article I found
                https://www.citrix.com/blogs/2012/08/24/storage_xenmotion/

                2012... back when it was a Citrix product. We mean XenMotion now, not then 😉 Citrix donated the entire XenServer project to Linux Foundation since 2012.

                This information, or rather the lack of knowing it, has been the cause for countless misunderstandings in the hypervisor world!

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

                  Same with any products, really. Outdated information whether by time or product version is always confusing. Things change over time. 2012 is a generation ago in IT time.

                  1 Reply Last reply Reply Quote 0
                  • ntoxicatorN
                    ntoxicator
                    last edited by

                    Great info... I've been using Citrix XenServer since around 2012. The Free version. Had the Enterprise version with HA and other features in the small datacenter I helped manage. it was $$$$$$$$$$$$$ along with using Citrix XenApp $$$$$$$

                    Probably why I had the bad taste in my mouth.. better feeling now they passed it to Linux foundation.

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

                      For most of a decade, people tried to promote KVM as open source because Xen wasn't exactly open for the first couples years back in like 2003. That legacy lasted for something like five times the length of the software actually not being open. Once someone had written it down, everyone just kept repeating it.

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

                        @scottalanmiller said:

                        For most of a decade, people tried to promote KVM as open source because Xen wasn't exactly open for the first couples years back in like 2003. That legacy lasted for something like five times the length of the software actually not being open. Once someone had written it down, everyone just kept repeating it.

                        This is like trying to kill off RAID 5.

                        And now that RAID 5 is viable again with SSDs, we're in even a worst state of what is happening 😉

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

                          @ntoxicator said:

                          Probably why I had the bad taste in my mouth.. better feeling now they passed it to Linux foundation.

                          Oh yeah, back in 2012 we recommended XCP, not XenServer, for exactly these reasons. XCP was the reference open source, free distro of Xen then. But since that time XenServer was donated to Linux Foundation just as Xen was. So now all three are from the LF and XCP and XS have been merged into a single product.

                          Xen has always been really awesome. And there have always been a few good distros of it. XenServer only recently became a good one, it was total garbage before the LF took it over and merged it with XCP.

                          1 Reply Last reply Reply Quote 0
                          • ntoxicatorN
                            ntoxicator
                            last edited by

                            So what you're saying is.... I should definately upgrade a node to 6.5!? lol.

                            next weekend I'm just going to schedule downtime and upgrade this one node to XenServer 6.1 (From 6.0)

                            Just read more information on site and realized that the LACP bond is not 100% true and working as was not fully supported until 6.1

                            I had previous nodes running 6.1 and those appeared to have less 'issues' and also seemed faster.

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

                              @ntoxicator said:

                              So what you're saying is.... I should definately upgrade a node to 6.5!? lol.

                              next weekend I'm just going to schedule downtime and upgrade this one node to XenServer 6.1 (From 6.0)

                              Just read more information on site and realized that the LACP bond is not 100% true and working as was not fully supported until 6.1

                              I had previous nodes running 6.1 and those appeared to have less 'issues' and also seemed faster.

                              6.2 was the first LF version, I think. You need to update to atleast that. If not go the entire way to 6.5 just make sure you have decent backups.

                              1 Reply Last reply Reply Quote 0
                              • ntoxicatorN
                                ntoxicator
                                last edited by

                                I'll be cautious route and upgrade to 6.1 first. and All is well, I'll proceed to 6.2. Essentially incremental updates

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

                                  @ntoxicator said:

                                  I'll be cautious route and upgrade to 6.1 first. and All is well, I'll proceed to 6.2. Essentially incremental updates

                                  You'll need to be on 6.2 before you can upgrade to 6.5 anyway so that is a good idea. Speaking of... I really need to update to 6.5...

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

                                    @ntoxicator said:

                                    So what you're saying is.... I should definately upgrade a node to 6.5!? lol.

                                    next weekend I'm just going to schedule downtime and upgrade this one node to XenServer 6.1 (From 6.0)

                                    Just read more information on site and realized that the LACP bond is not 100% true and working as was not fully supported until 6.1

                                    I had previous nodes running 6.1 and those appeared to have less 'issues' and also seemed faster.

                                    XS was pretty crap in the Citrix era.

                                    1 Reply Last reply Reply Quote 0
                                    • ntoxicatorN
                                      ntoxicator
                                      last edited by ntoxicator

                                      I'll upgrade to 6.1 after holiday when i return from small vacation im taking away from office. Once on 6.1, I'll incremental upgrade to 6.2. from there.. 6.5

                                      hopeful it will go smooth. see what happens

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

                                        Holiday meaning Christmas?

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

                                          Going somewhere cool for vacation?

                                          1 Reply Last reply Reply Quote 0
                                          • ntoxicatorN
                                            ntoxicator
                                            last edited by

                                            ehhh. if you mean cool and in 'cold'.. haha. Going to upstate NY to visit family for Christmas. First Christmas with them in 5 years

                                            scottalanmillerS 1 Reply Last reply Reply Quote 0
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