VHD Check Error

[acebmxer]

Below are logs from the most recent backups in home lab. Previous job before these completed with no errors.

"data": {
        "type": "VM",
        "id": "fb72a8d7-a039-849f-b547-24fc56f056ba",
        "name_label": "Work PC"
      },
      "id": "1772820551246",
      "message": "backup VM",
      "start": 1772820551246,
      "status": "success",
      "tasks": [
        {
          "id": "1772820551378",
          "message": "clean-vm",
          "start": 1772820551378,
          "status": "success",
          "warnings": [
            {
              "data": {
                "path": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260305T180818Z.vhd",
                "error": {
                  "parent": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260304T180919Z.vhd",
                  "child1": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260305T050936Z.vhd",
                  "child2": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260305T180818Z.vhd"
                }
              },
              "message": "VHD check error"
            }
          ],
          "end": 1772820551595,
          "result": {
            "merge": false
          }
        },
        {
          "id": "1772820552011",
          "message": "snapshot",
          "start": 1772820552011,
          "status": "success",
          "end": 1772820553464,
          "result": "1028f3b3-d45b-326c-0c0d-96a452d9ef1c"
        },
        {
          "id": "1772820943456",
          "message": "health check",
          "start": 1772820943456,
          "status": "success",
          "infos": [
            {
              "message": "This VM doesn't match the health check's tags for this schedule"
            }
          ],
          "end": 1772820943457
        },
        {
          "data": {
            "id": "a5e54e04-d7e4-48cb-bafc-b2f306d39679",
            "isFull": false,
            "type": "remote"
          },
          "id": "1772820553464:0",
          "message": "export",
          "start": 1772820553464,
          "status": "success",
          "tasks": [
            {
              "id": "1772820556813",
              "message": "transfer",
              "start": 1772820556813,
              "status": "success",
              "end": 1772820942395,
              "result": {
                "size": 30651973632
              }
            },
            {
              "id": "1772820943468",
              "message": "clean-vm",
              "start": 1772820943468,
              "status": "success",
              "warnings": [
                {
                  "data": {
                    "path": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260305T050936Z.vhd",
                    "error": {
                      "parent": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260304T180919Z.vhd",
                      "child1": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260305T180818Z.vhd",
                      "child2": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260305T050936Z.vhd"
                    }
                  },
                  "message": "VHD check error"
                },
                {
                  "data": {
                    "backup": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/20260305T050936Z.json",
                    "missingVhds": [
                      "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260305T050936Z.vhd"
                    ]
                  },
                  "message": "some VHDs linked to the backup are missing"
                }
              ],
              "end": 1772820944285,
              "result": {
                "merge": true
              }
            }
          ],
          "end": 1772820944299
        }
      ],
      "end": 1772820944299
    },

Previous backup job, marked as Skipped...

{
      "data": {
        "type": "VM",
        "id": "fb72a8d7-a039-849f-b547-24fc56f056ba",
        "name_label": "Work PC"
      },
      "id": "1772773302800",
      "message": "backup VM",
      "start": 1772773302800,
      "status": "skipped",
      "tasks": [
        {
          "id": "1772773302805",
          "message": "clean-vm",
          "start": 1772773302805,
          "status": "success",
          "warnings": [
            {
              "data": {
                "path": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260305T180818Z.vhd",
                "error": {
                  "parent": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260304T180919Z.vhd",
                  "child1": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260305T050936Z.vhd",
                  "child2": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260305T180818Z.vhd"
                }
              },
              "message": "VHD check error"
            }
          ],
          "end": 1772773303762,
          "result": {
            "merge": false
          }
        },
        {
          "id": "1772773305019",
          "message": "snapshot",
          "start": 1772773305019,
          "status": "skipped",
          "end": 1772773305121,
          "result": {
            "message": "unhealthy VDI chain",
            "name": "Error",
            "stack": "Error: unhealthy VDI chain\n    at Xapi._assertHealthyVdiChain (file:///opt/xen-orchestra/@xen-orchestra/xapi/vm.mjs:150:15)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async Xapi.assertHealthyVdiChains (file:///opt/xen-orchestra/@xen-orchestra/xapi/vm.mjs:214:7)\n    at async file:///opt/xen-orchestra/@xen-orchestra/backups/_runners/_vmRunners/_AbstractXapi.mjs:184:11"
          }
        },
        {
          "id": "1772773305238",
          "message": "clean-vm",
          "start": 1772773305238,
          "status": "success",
          "warnings": [
            {
              "data": {
                "path": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260305T180818Z.vhd",
                "error": {
                  "parent": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260304T180919Z.vhd",
                  "child1": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260305T050936Z.vhd",
                  "child2": "/xo-vm-backups/fb72a8d7-a039-849f-b547-24fc56f056ba/vdis/ec47112e-6518-4c2c-a59d-e6700d6f4923/468c876b-0054-41e2-840b-631d3c665f5d/20260305T180818Z.vhd"
                }
              },
              "message": "VHD check error"
            }
          ],
          "end": 1772773307297,
          "result": {
            "merge": false
          }
        }
      ],
      "end": 1772773307301,
      "result": {
        "message": "unhealthy VDI chain",
        "name": "Error",
        "stack": "Error: unhealthy VDI chain\n    at Xapi._assertHealthyVdiChain (file:///opt/xen-orchestra/@xen-orchestra/xapi/vm.mjs:150:15)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async Xapi.assertHealthyVdiChains (file:///opt/xen-orchestra/@xen-orchestra/xapi/vm.mjs:214:7)\n    at async file:///opt/xen-orchestra/@xen-orchestra/backups/_runners/_vmRunners/_AbstractXapi.mjs:184:11"
      }
    }

[acebmxer]

I looked into the backup job and i forgot to enable a few settings when recreated the backup job.

After renabling the below settings i reran the backup job. The vm in question did a full backup. All passed.

{
      "data": {
        "type": "VM",
        "id": "fb72a8d7-a039-849f-b547-24fc56f056ba",
        "name_label": "Work PC"
      },
      "id": "1772833993844",
      "message": "backup VM",
      "start": 1772833993844,
      "status": "success",
      "tasks": [
        {
          "id": "1772833993868",
          "message": "clean-vm",
          "start": 1772833993868,
          "status": "success",
          "end": 1772833994233,
          "result": {
            "merge": false
          }
        },
        {
          "id": "1772833994652",
          "message": "snapshot",
          "start": 1772833994652,
          "status": "success",
          "end": 1772833997235,
          "result": "16f5fe19-207a-4d89-017c-3f9405d22231"
        },
        {
          "id": "1772834490355:0",
          "message": "health check",
          "start": 1772834490355,
          "status": "success",
          "infos": [
            {
              "message": "This VM doesn't match the health check's tags for this schedule"
            }
          ],
          "end": 1772834490356
        },
        {
          "data": {
            "id": "a5e54e04-d7e4-48cb-bafc-b2f306d39679",
            "isFull": true,
            "type": "remote"
          },
          "id": "1772833997235:0",
          "message": "export",
          "start": 1772833997235,
          "status": "success",
          "tasks": [
            {
              "id": "1772834004185",
              "message": "transfer",
              "start": 1772834004185,
              "status": "success",
              "end": 1772834489032,
              "result": {
                "size": 119502012416
              }
            },
            {
              "id": "1772834490368",
              "message": "clean-vm",
              "start": 1772834490368,
              "status": "success",
              "end": 1772834490475,
              "result": {
                "merge": false
              }
            }
          ],
          "end": 1772834490476
        }
      ],
      "infos": [
        {
          "message": "will delete snapshot data"
        },
        {
          "data": {
            "vdiRef": "OpaqueRef:31692cb3-7c43-de83-2cc8-f2e39a0105c8"
          },
          "message": "Snapshot data has been deleted"
        }
      ],
      "end": 1772834490476
    }