ML
    • Recent
    • Categories
    • Tags
    • Popular
    • Users
    • Groups
    • Register
    • Login

    Building Out XenServer 6.5 with USB Boot and Software RAID 10

    Scheduled Pinned Locked Moved IT Discussion
    xenvirtualizationxenserverxenserver 6.5how to
    182 Posts 13 Posters 66.2k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • scottalanmillerS
      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
      • scottalanmillerS
        scottalanmiller @Romo
        last edited by

        @Romo said:

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

        Ah, good catch. I'm updating the OP with a finalized script. Please review.

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

          I got the uuid using this:

          madadm --detail /dev/md10 | grep UUID

          scottalanmillerS 2 Replies Last reply Reply Quote 2
          • RomoR
            Romo
            last edited by

            We don't need to install mdadm, its there already

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

              @Romo said:

              I got the uuid using this:

              madadm --detail /dev/md10 | grep UUID

              Thanks.

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

                @Romo said:

                I got the uuid using this:

                madadm --detail /dev/md10 | grep UUID

                What is the raw output of that command? Did you need to clean it up? I want this scripted, not manual, if possible.

                1 Reply Last reply Reply Quote 0
                • brianlittlejohnB
                  brianlittlejohn
                  last edited by

                  i'm going to have to try this out, i have an old dell with FAKERAID.

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

                    This is the output @scottalanmiller just have to replace : with -

                    UUID : fba59a9c:7e6db5a2:d21e4034:3b415cfd

                    1 Reply Last reply Reply Quote 0
                    • mlnewsM
                      mlnews @brianlittlejohn
                      last edited by

                      @brianlittlejohn said:

                      i'm going to have to try this out, i have an old dell with FAKERAID.

                      You can do it anywhere. No FakeRAID needed since the whole point is to bypass it. Works equally well where there is no FakeRAID too.

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

                        echo "modprobe raid10" > /etc/sysconfig/modules/raid.modules
                        modprobe raid10
                        chmod a+x /etc/sysconfig/modules/raid.modules

                        mdadm --create /dev/md0 --level=10 --raid-devices=4 /dev/sd[a-d]

                        Loading the modules to kernel need to go before creating the md device

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

                          @romo can you confirm if this command works?

                          madadm --detail /dev/md10 | grep UUID | cut -d' ' -f3
                          
                          1 Reply Last reply Reply Quote 0
                          • RomoR
                            Romo
                            last edited by

                            I got a blank output after fixing madadm to mdadm

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

                              It worked on the output that you gave to me. 😞

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

                                See what -f2 does.

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

                                  I refreshed the OP with the latest revisions.

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

                                    Screenshot from 2015-11-05 09:47:36.png

                                    1 Reply Last reply Reply Quote 0
                                    • DustinB3403D
                                      DustinB3403
                                      last edited by

                                      Romo can you confirm if SDA is the USB drive?

                                      we need to confirm that it's not attempting to be added to the Array with

                                      mdadm --create /dev/md0 --level=10 --raid-devices=4 /dev/sd[a-d]
                                      
                                      1 Reply Last reply Reply Quote 0
                                      • RomoR
                                        Romo
                                        last edited by

                                        Yes in my setup sda simulates to be the usb, thats why the array starts with sdb

                                        1 Reply Last reply Reply Quote 0
                                        • DustinB3403D
                                          DustinB3403
                                          last edited by

                                          OK so scott change the script to start at sd[b-e]

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

                                            I believe it should be in this order:

                                            modprobe raid10
                                            chmod a+x /etc/sysconfig/modules/raid.modules
                                            mdadm --create /dev/md0 --level=10 --raid-devices=4 /dev/sd[a-d]
                                            cat /proc/mdstat

                                            DustinB3403D 1 Reply Last reply Reply Quote 0
                                            • 1
                                            • 2
                                            • 3
                                            • 4
                                            • 5
                                            • 9
                                            • 10
                                            • 3 / 10
                                            • First post
                                              Last post