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    Ubuntu Systemd Bad Entry

    Scheduled Pinned Locked Moved IT Discussion
    systemdubuntuvmext4smartctlerrorerrorssmartcorruptedbuffer io error on devicebuffer iodm-0
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    • scottalanmillerS
      scottalanmiller
      last edited by

      Can be a URE as well. Without RAID, URE comes up and this is often what it would look like.

      1 Reply Last reply Reply Quote 2
      • scottalanmillerS
        scottalanmiller @DustinB3403
        last edited by

        @DustinB3403 Yes, clear.

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        • DustinB3403D
          DustinB3403
          last edited by

          MD RAID 10 is configured on this box for the storage space. So I can check that as well.

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          • thwrT
            thwr @scottalanmiller
            last edited by

            @scottalanmiller

            @DustinB3403 said in Ubuntu Systemd Bad Entry:

            MD RAID 10 is configured on this box for the storage space. So I can check that as well.

            Should be the very first thing to check.

            thwrT 1 Reply Last reply Reply Quote 2
            • DustinB3403D
              DustinB3403
              last edited by

              lots of deleted/unused inodes, clearing them all.

              StrongBadS 1 Reply Last reply Reply Quote 0
              • StrongBadS
                StrongBad @DustinB3403
                last edited by

                @DustinB3403 said in Ubuntu Systemd Bad Entry:

                lots of deleted/unused inodes, clearing them all.

                That is common in scenarios where you have filesystem corruption.

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                • DustinB3403D
                  DustinB3403
                  last edited by

                   Inode ____ ref count is _, should be . Fix<u>? 
                  

                  Correcting these issues.

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                  • thwrT
                    thwr @thwr
                    last edited by

                    @thwr said in Ubuntu Systemd Bad Entry:

                    @scottalanmiller

                    @DustinB3403 said in Ubuntu Systemd Bad Entry:

                    MD RAID 10 is configured on this box for the storage space. So I can check that as well.

                    Should be the very first thing to check.

                    Array status:

                    mdadm --detail /dev/mdx
                    

                    https://raid.wiki.kernel.org/index.php/Detecting,_querying_and_testing#Querying_the_array_status

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                    • DustinB3403D
                      DustinB3403
                      last edited by

                      it looks like xvda is having issues according the current screen.

                      0_1463745181513_XenCenterMain_2016-05-20_07-52-53.png

                      Might have to replace that drive...

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                      • DustinB3403D
                        DustinB3403
                        last edited by

                        At the moment the system appears to just be progressing through the blk_update_request with I/O errors for individual sectors on XVDA.

                        Should I abort this operation and find a replacement drive? Is it worth it to let this continue?

                        thwrT 1 Reply Last reply Reply Quote 0
                        • thwrT
                          thwr @DustinB3403
                          last edited by

                          @DustinB3403 said in Ubuntu Systemd Bad Entry:

                          At the moment the system appears to just be progressing through the blk_update_request with I/O errors for individual sectors on XVDA.

                          Should I abort this operation and find a replacement drive? Is it worth it to let this continue?

                          Hard to say. Real data on it? Would try to get a last backup first before doing filesystem operations.

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

                            Yeah, all comes down to the value of recovery, really.

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                            • DustinB3403D
                              DustinB3403
                              last edited by

                              I don't mind tearing down the system, it's only running 1 VM that I'm backing up my VM's too. Which those delta's get pushed off nightly to another disk.

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                              • DustinB3403D
                                DustinB3403
                                last edited by

                                Time to reboot

                                0_1463746181028_XenCenterMain_2016-05-20_08-09-31.png

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                                • DustinB3403D
                                  DustinB3403
                                  last edited by DustinB3403

                                  And the system is in recovery mode. ..

                                  0_1463746323966_XenCenterMain_2016-05-20_08-11-55.png

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                                  • scottalanmillerS
                                    scottalanmiller
                                    last edited by

                                    Manual fsck is no fun.

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

                                      At least all of the instructions are there, and this is a learning experience.

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                                      • A
                                        Alex Sage @scottalanmiller
                                        last edited by

                                        This post is deleted!
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                                        • DustinB3403D
                                          DustinB3403
                                          last edited by DustinB3403

                                          All disks in the array appear to be fine according to MD.... So this is clearly this is something with the VM.

                                          0_1463748932727_XenCenterMain_2016-05-20_08-55-18.png

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                                          • DustinB3403D
                                            DustinB3403
                                            last edited by

                                            So I was able to just restore this VM to a snapshot from the other day.

                                            Should I perform another fsck on this virtual system?

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