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

    Ubuntu Systemd Bad Entry

    IT Discussion
    systemd ubuntu vm ext4 smartctl error errors smart corrupted buffer io error on device buffer io dm-0
    5
    53
    8.5k
    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.
    • DustinB3403D
      DustinB3403
      last edited by

      essentially this one disk is in a pre-failed state due to age.

      So performing

      mdadm /dev/md0 --fail /dev/sdb --remove /dev/sdb

      and then replacing this disk I should be in a good state.

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

        And the array is resilvering the now replaced disk.

        As an FYI for anyone on software RAID, the drives are organized in a manner that aligns to the SATA connections on the board.

        IE : USB boot device is SDA

        SATA1 (or 0 however it is labeled) = SDB
        SATA2 = SDC
        and so on.

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

          Well at least for now, the I/O errors have stopped after I replaced the bad disk in the host array and reverted the VM.

          I'll keep an eye on it and report back if the issue comes back.

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

            And these are back.

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

              Same disk?

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

                On the guest OS there is only 1 disk (it's presented from the array).

                I checked the smart stats on each drive and found no issues. MD was also fine.

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

                  0_1464262100485_XenCenterMain_2016-05-26_07-28-08.png

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

                    0_1464262144980_XenCenterMain_2016-05-26_07-28-53.png

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

                      Although on a separate note..... this is a shit desktop... that is acting as the hypervisor... so errors really shouldn't surprise me.

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

                        All disks in the host are marked as "Old_age" so there really isn't much that I can do besides assemble something else.

                        Hopefully out of newer equipment.

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

                          Maybe I'm reading this wrong.. Smart overall-health self-assessment is passed on all drives.

                          So maybe it's just a column saying "it'll fail here"

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

                            I'm performing long tests on each of the drives to confirm the information I have is accurate. I'll update in ~90 minutes.

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

                              You can watch this while you wait....

                              Youtube Video

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

                                @scottalanmiller said in Ubuntu Systemd Bad Entry:

                                You can watch this while you wait....

                                Youtube Video

                                hahaha thanks...

                                You might as well have Rick Rolled me.

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

                                  @DustinB3403 Rick Rolling the Moldovan way.

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

                                    I'm curious as to why the VM is showing these issues, but the hypervisor isn't listing any issues at all.

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

                                      @DustinB3403 said in Ubuntu Systemd Bad Entry:

                                      I'm curious as to why the VM is showing these issues, but the hypervisor isn't listing any issues at all.

                                      My guess is a driver issue. You are not getting errors from a disk but from an abstraction of the array. So you are two interfaces separated from the actual disks.

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

                                        I'll just dump the VM, at this point it's been 4 days without a clean backup. It's only a Ubuntu VM with an NFS/SMB share.

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

                                          So after building a new NFS/SMB vm (and deleting the old one) the new system seems fine.

                                          Something must've got corrupted because of the smartctl errors.

                                          1 Reply Last reply Reply Quote 1
                                          • 1
                                          • 2
                                          • 3
                                          • 3 / 3
                                          • First post
                                            Last post