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    Building Out XenServer 6.5 with USB Boot and Software RAID 10

    IT Discussion
    xen virtualization xenserver xenserver 6.5 how to
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    • dafyre
      dafyre last edited by

      And preferably test it as you go, lol.

      scottalanmiller 1 Reply Last reply Reply Quote 0
      • DustinB3403
        DustinB3403 last edited by

        Does anyone know how to select the VM storage in xenserver, outside of the ISO installation process. We probably need that as well.

        1 Reply Last reply Reply Quote 1
        • scottalanmiller
          scottalanmiller @dafyre last edited by

          @dafyre said:

          And preferably test it as you go, lol.

          Testing is for wimps.

          1 Reply Last reply Reply Quote 2
          • Romo
            Romo @dafyre last edited by

            @DustinB3403 I am actually trying to do exactly that just right now on my test setup. It thought that with this command:
            xe sr-create type=ext device-config:device=/dev/md10 shared=false host-uuid:fba59a9c7e6db5a2d21e40343b415cfd name-label="Array storage"

            It would get added as local storage to xencenter, but I am getting this error :
            The SR operation cannot be performed because a device underlying the SR is in use by the host.

            Don't really know why, I haven't used xenserver before. Any ideas @scottalanmiller

            DustinB3403 1 Reply Last reply Reply Quote 1
            • DustinB3403
              DustinB3403 last edited by

              OK so without the specific target device I believe this command will work.

              xe sr-create content-type=user type=ext device-config:device=/dev/cciss/c0d0p3 shared=false name-label="Local storage"
              

              We simply need to determine his device path

              1 Reply Last reply Reply Quote 1
              • DustinB3403
                DustinB3403 @Romo last edited by

                @Romo said:

                @DustinB3403 I am actually trying to do exactly that just right now on my test setup. It thought that with this command:
                xe sr-create type=ext device-config:device=/dev/md10 shared=false host-uuid:fba59a9c7e6db5a2d21e40343b415cfd name-label="Array storage"

                It would get added as local storage to xencenter, but I am getting this error :
                The SR operation cannot be performed because a device underlying the SR is in use by the host.

                Don't really know why, I haven't used xenserver before. Any ideas @scottalanmiller

                The reason your target device is in use is you have it mounted. Try dismounting the array and try again.

                1 Reply Last reply Reply Quote 2
                • DustinB3403
                  DustinB3403 last edited by

                  Romo when you run

                  xe sr-list 
                  

                  What's listed?

                  1 Reply Last reply Reply Quote 0
                  • Romo
                    Romo last edited by

                    The array is now properly seen as storage in xencenter, I did have to unmount it first @DustinB3403

                    1 Reply Last reply Reply Quote 0
                    • DustinB3403
                      DustinB3403 last edited by

                      What process did you run to unmount it.

                      1 Reply Last reply Reply Quote 0
                      • Romo
                        Romo last edited by

                        umount /dev/md10

                        1 Reply Last reply Reply Quote 1
                        • DustinB3403
                          DustinB3403 last edited by

                          So you ran

                           umount /dev/md10
                          

                          and then

                          xe sr-create type=ext device-config:device=/dev/md10 shared=false host-uuid:fba59a9c7e6db5a2d21e40343b415cfd name-label="Array storage"
                          

                          Correct?

                          1 Reply Last reply Reply Quote 1
                          • Romo
                            Romo last edited by

                            Yes, @DustinB3403 .

                            This is xe sr-list output with the array added as storage

                            Screenshot from 2015-11-05 09:12:22.png

                            1 Reply Last reply Reply Quote 0
                            • Romo
                              Romo last edited by

                              @DustinB3403 sorry I did add content-type=user to the sr-create command. The final command was

                              xe sr-create type=ext device-config:device=/dev/md10 shared=false host-uuid:fba59a9c-7e6db5a2-d21e4034-3b415cfd content-type=user name-label="Array storage"

                              1 Reply Last reply Reply Quote 0
                              • DustinB3403
                                DustinB3403 last edited by DustinB3403

                                OK so after saving the RAID Array (in my wall of text) he then would have to run

                                umount /dev/raid10
                                

                                and then

                                xe sr-create type=ext device-config:device=/dev/raid10 shared=false host-uuid:<HOST-UUID> content-type=user name-label="Array storage"
                                
                                1 Reply Last reply Reply Quote 0
                                • DustinB3403
                                  DustinB3403 last edited by

                                  I'm guessing the system auto-mounted the array when you built it, and can now see it in XenCenter.

                                  Correct?

                                  1 Reply Last reply Reply Quote 0
                                  • Romo
                                    Romo last edited by

                                    It is automounting since we added it to our fstab

                                    1 Reply Last reply Reply Quote 0
                                    • Romo
                                      Romo last edited by

                                      After adding the array as storage xenserver , the output of df -Th changes to this

                                      Screenshot from 2015-11-05 09:21:03.png

                                      1 Reply Last reply Reply Quote 0
                                      • Romo
                                        Romo last edited by

                                        I removed the /dev/md10 entry from fstab so it doesn't automount and causes conflict with xenserver handling storage

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

                                          Xencenter after reboots properly automounts our new array

                                          2015-11-05 09_31_51-XenCenter.png

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

                                            We need to get the UUID out of the proposed script, that much I know won't work.

                                            1 Reply Last reply Reply Quote 1
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