Good Morning guys,
it looks like I'm having the same issue on a host that I'm doing replications. On the normal Delta Backups I'm not getting this error. But I'm getting it on the schedule Replication for only 1 of the vm's. Here is what comes on the log for that VM.
"id": "1679486747187",
              "message": "transfer",
              "start": 1679486747187,
              "status": "failure",
              "end": 1679487904889,
              "result": {
                "code": "VDI_IO_ERROR",
                "params": [
                  "Device I/O errors"
                ],
                "url": "https://192.168.2.11/import_raw_vdi/?format=vhd&vdi=OpaqueRef%3Aa5f60c35-64c2-497e-ae15-77aa63d14274&session_id=OpaqueRef%3A1593dbd0-4347-4dee-ad02-58ed84f6dbf6&task_id=OpaqueRef%3Aced050e9-1f49-4bbe-8b74-ef787d536d62",
                "task": {
                  "uuid": "a7e3ba73-9d02-c211-48be-6a246828211c",
                  "name_label": "[XO] Importing content into VDI HEALmycroft 0",
                  "name_description": "",
                  "allowed_operations": [],
                  "current_operations": {},
                  "created": "20230322T12:05:52Z",
                  "finished": "20230322T12:25:03Z",
                  "status": "failure",
                  "resident_on": "OpaqueRef:259273e3-6fe1-4f9a-b688-ab0847cb81f8",
                  "progress": 1,
                  "type": "<none/>",
                  "result": "",
                  "error_info": [
                    "VDI_IO_ERROR",
                    "Device I/O errors"
                  ],
                  "other_config": {},
                  "subtask_of": "OpaqueRef:NULL",
                  "subtasks": [],
                  "backtrace": "(((process xapi)(filename ocaml/xapi/vhd_tool_wrapper.ml)(line 77))((process xapi)(filename lib/xapi-stdext-pervasives/pervasiveext.ml)(line 24))((process xapi)(filename lib/xapi-stdext-pervasives/pervasiveext.ml)(line 35))((process xapi)(filename lib/xapi-stdext-pervasives/pervasiveext.ml)(line 24))((process xapi)(filename lib/xapi-stdext-pervasives/pervasiveext.ml)(line 35))((process xapi)(filename ocaml/xapi/import_raw_vdi.ml)(line 170)))"