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    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 62.3k Views
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    • DustinB3403D
      DustinB3403
      last edited by

      Yes Yes, you're too quick some times sir. I corrected it.

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

        So with the above 3 pictures and the Array missing.

        I'd obviously have to rebuild the array, and remap items. Additionally, I'll have to recreate my "backup" USB (which isn't a huge deal)

        1 Reply Last reply Reply Quote 0
        • RomoR
          Romo @DustinB3403
          last edited by

          @DustinB3403 can you run

          mdadm --examine --scan

          1 Reply Last reply Reply Quote 2
          • scottalanmillerS
            scottalanmiller
            last edited by

            We need to find the missing array before we can do anything else. As @romo mentioned we need to scan and see if the array is out there somewhere.

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

              0_1447092654693_2015-11-09_13-10-40.png

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

                Running

                    mount md0
                

                results in

                   mount: mount point /mnt/raid10 does not exist
                
                1 Reply Last reply Reply Quote 0
                • scottalanmillerS
                  scottalanmiller
                  last edited by

                  mkdir /mnt/raid10

                  1 Reply Last reply Reply Quote 0
                  • RomoR
                    Romo @DustinB3403
                    last edited by

                    @DustinB3403 what is in your mdadm.conf?

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

                      Can't find

                          md0 in /etc/fstab or /etc/mtab
                      
                      scottalanmillerS 1 Reply Last reply Reply Quote 0
                      • scottalanmillerS
                        scottalanmiller @DustinB3403
                        last edited by

                        @DustinB3403 said:

                        Can't find

                            md0 in /etc/fstab or /etc/mtab
                        

                        Should not be there, right?

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

                          @Romo said:

                          @DustinB3403 what is in your mdadm.conf?

                          0_1447093272983_2015-11-09_13-21-02.png

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

                            @scottalanmiller said:

                            @DustinB3403 said:

                            Can't find

                                md0 in /etc/fstab or /etc/mtab
                            

                            Should not be there, right?

                            I added an entry into fstab. It may have a typo...

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                            • DustinB3403D
                              DustinB3403
                              last edited by

                              fstab

                              0_1447093339301_2015-11-09_13-22-06.png

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                              • DustinB3403D
                                DustinB3403
                                last edited by

                                fstab corrected, entry reversed.

                                     mount raid10
                                mount: /mnt/raid10 is not a block device
                                
                                1 Reply Last reply Reply Quote 0
                                • RomoR
                                  Romo
                                  last edited by

                                  Your could run

                                  mdadm --examine --scan >> /etc/mdadm/mdadm.conf

                                  To recreate the conf and see if it fixes the problem. /dev/md/0 should be a symbolic link to /dev/md0

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

                                    @Romo Same response when reexamining the disks. this is for both

                                    mount /mnt/raid10 && mount /dev/md10
                                    

                                    0_1447093679739_2015-11-09_13-27-40.png

                                    1 Reply Last reply Reply Quote 0
                                    • dafyreD
                                      dafyre
                                      last edited by

                                      mount /dev/md0 /mnt/raid10 ?

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

                                        /dev/md0 not md10

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

                                          Using RAID 10 in names anywhere is very confusing and hard to read. I think several of these issues are partially stemming just from poor naming conventions. Name mount points by purpose, not technology.

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

                                            You can't mount /dev/md0, because according to the mdadm --examine --scan ouput, the array, is at /dev/md/0

                                            StrongBadS 1 Reply Last reply Reply Quote 0
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