Hey All.
since the recent upgrades i cannot migrate a vm from 1 system to another, i get the below errors through the "XenOrchestrator", however when i do the "xe vm-migrate" i have no issues.

{
  "id": "0mng8aura",
  "properties": {
    "method": "vm.migrate",
    "params": {
      "vm": "d03bc0b8-6f22-5997-912f-c1edab2dcac2",
      "migrationNetwork": "9a74000a-8481-1b36-2dd1-a58cd6747623",
      "targetHost": "82cf5c29-db31-4cc3-b057-db8f85324232"
    },
    "name": "API call: vm.migrate",
    "userId": "02d261f6-840b-4148-9eb5-d181432af7d2",
    "type": "api.call"
  },
  "start": 1775059006006,
  "status": "failure",
  "updatedAt": 1775059017805,
  "warnings": [
    {
      "data": {
        "pif": "c13bcf0c-ef0c-27bd-592a-58ef4eedf18d"
      },
      "message": "PIF is not attached"
    }
  ],
  "end": 1775059017803,
  "result": {
    "code": "INTERNAL_ERROR",
    "params": [
      "xenopsd internal error: Xmlrpc.Parse_error(\"open_tag(html)\", \"open_tag(methodResponse)\", _)"
    ],
    "task": {
      "uuid": "d7c63011-1bda-5c33-330b-ec1c09baea23",
      "name_label": "Async.VM.pool_migrate",
      "name_description": "",
      "allowed_operations": [],
      "current_operations": {},
      "created": "20260401T15:56:46Z",
      "finished": "20260401T15:56:57Z",
      "status": "failure",
      "resident_on": "OpaqueRef:6dadebb7-39c8-4bb7-a559-909a80824227",
      "progress": 1,
      "type": "<none/>",
      "result": "",
      "error_info": [
        "INTERNAL_ERROR",
        "xenopsd internal error: Xmlrpc.Parse_error(\"open_tag(html)\", \"open_tag(methodResponse)\", _)"
      ],
      "other_config": {},
      "subtask_of": "OpaqueRef:NULL",
      "subtasks": [],
      "backtrace": "(((process xenopsd-xc)(filename src/lib/xmlrpc.ml)(line 182))((process xenopsd-xc)(filename ocaml/xapi-idl/lib/xcp_client.ml)(line 138))((process xenopsd-xc)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 24))((process xenopsd-xc)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 39))((process xenopsd-xc)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 24))((process xenopsd-xc)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 39))((process xenopsd-xc)(filename ocaml/libs/stunnel/stunnel.ml)(line 412))((process xenopsd-xc)(filename src/lib/idl.ml)(line 550))((process xenopsd-xc)(filename ocaml/xenopsd/lib/xenops_server.ml)(line 2816))((process xenopsd-xc)(filename ocaml/xenopsd/lib/xenops_task.ml)(line 103))((process xenopsd-xc)(filename ocaml/xenopsd/lib/xenops_task.ml)(line 111))((process xenopsd-xc)(filename ocaml/xenopsd/lib/xenops_server.ml)(line 3408))((process xenopsd-xc)(filename ocaml/xenopsd/lib/xenops_server.ml)(line 3418))((process xenopsd-xc)(filename ocaml/xenopsd/lib/xenops_server.ml)(line 3439))((process xenopsd-xc)(filename ocaml/xapi-idl/lib/task_server.ml)(line 192))((process xapi)(filename ocaml/xapi/xapi_xenops.ml)(line 3488))((process xapi)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 24))((process xapi)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 39))((process xapi)(filename ocaml/xapi/xapi_xenops.ml)(line 3659))((process xapi)(filename ocaml/xapi/xapi_vm_migrate.ml)(line 262))((process xapi)(filename ocaml/xapi/xapi_vm_migrate.ml)(line 268))((process xapi)(filename ocaml/xapi/xapi_vm_migrate.ml)(line 293))((process xapi)(filename ocaml/xapi/xapi_vm_migrate.ml)(line 434))((process xapi)(filename ocaml/xapi/xapi_xenops.ml)(line 3497))((process xapi)(filename ocaml/xapi/xapi_vm_migrate.ml)(line 458))((process xapi)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 24))((process xapi)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 39))((process xapi)(filename ocaml/xapi/message_forwarding.ml)(line 141))((process xapi)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 24))((process xapi)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 39))((process xapi)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 24))((process xapi)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 39))((process xapi)(filename ocaml/xapi/message_forwarding.ml)(line 2515))((process xapi)(filename ocaml/xapi/rbac.ml)(line 228))((process xapi)(filename ocaml/xapi/rbac.ml)(line 238))((process xapi)(filename ocaml/xapi/server_helpers.ml)(line 78)))"
    },
    "message": "INTERNAL_ERROR(xenopsd internal error: Xmlrpc.Parse_error(\"open_tag(html)\", \"open_tag(methodResponse)\", _))",
    "name": "XapiError",
    "stack": "XapiError: INTERNAL_ERROR(xenopsd internal error: Xmlrpc.Parse_error(\"open_tag(html)\", \"open_tag(methodResponse)\", _))\n    at XapiError.wrap (file:///opt/xo/xo-builds/xen-orchestra-202604011500/packages/xen-api/_XapiError.mjs:16:12)\n    at default (file:///opt/xo/xo-builds/xen-orchestra-202604011500/packages/xen-api/_getTaskResult.mjs:13:29)\n    at Xapi._addRecordToCache (file:///opt/xo/xo-builds/xen-orchestra-202604011500/packages/xen-api/index.mjs:1078:24)\n    at file:///opt/xo/xo-builds/xen-orchestra-202604011500/packages/xen-api/index.mjs:1112:14\n    at Array.forEach (<anonymous>)\n    at Xapi._processEvents (file:///opt/xo/xo-builds/xen-orchestra-202604011500/packages/xen-api/index.mjs:1102:12)\n    at Xapi._watchEvents (file:///opt/xo/xo-builds/xen-orchestra-202604011500/packages/xen-api/index.mjs:1275:14)"
  }
}

Anyone any ideas why this would be the case?? below is the PIF i am using "VMotion"

xe pif-list network-uuid=9a74000a-8481-1b36-2dd1-a58cd6747623   params=uuid,host-uuid,device,carrier,IP-configuration-mode,IP,netmask,gateway
uuid ( RO)                     : c63c20a7-9b94-37c8-8822-cfe04e483515
                   device ( RO): eth5
                host-uuid ( RO): ffd1921d-ce8e-49b4-a69e-2c1e571125c5
    IP-configuration-mode ( RO): Static
                       IP ( RO): 10.xx.xx.200
                  netmask ( RO): 255.255.255.0
                  gateway ( RO): 10.xx.xx.1
                  carrier ( RO): true


uuid ( RO)                     : c13bcf0c-ef0c-27bd-592a-58ef4eedf18d
                   device ( RO): eth5
                host-uuid ( RO): 82cf5c29-db31-4cc3-b057-db8f85324232
    IP-configuration-mode ( RO): Static
                       IP ( RO): 10.xx.xx.200
                  netmask ( RO): 255.255.255.0
                  gateway ( RO): 10.xx.xx.1
                  carrier ( RO): true

xe pif-param-list uuid=c63c20a7-9b94-37c8-8822-cfe04e483515 | egrep 'uuid|device|carrier|IP-configuration-mode|IP|netmask|gateway'
uuid ( RO)                       : c63c20a7-9b94-37c8-8822-cfe04e483515
                     device ( RO): eth5
               network-uuid ( RO): 9a74000a-8481-1b36-2dd1-a58cd6747623
                  host-uuid ( RO): ffd1921d-ce8e-49b4-a69e-2c1e571125c5
      IP-configuration-mode ( RO): Static
                         IP ( RO): 10.xx.xx.200
                    netmask ( RO): 255.255.255.0
                    gateway ( RO): 10.xx.xx.1
    IPv6-configuration-mode ( RO): None
                       IPv6 ( RO): 
               IPv6-gateway ( RO): 
       primary-address-type ( RO): IPv4
                    carrier ( RO): true
                  device-id ( RO): 1521
                device-name ( RO): I350 Gigabit Network Connection

 xe pif-param-list uuid=c13bcf0c-ef0c-27bd-592a-58ef4eedf18d | egrep 'uuid|device|carrier|IP-configuration-mode|IP|netmask|gateway'
uuid ( RO)                       : c13bcf0c-ef0c-27bd-592a-58ef4eedf18d
                     device ( RO): eth5
               network-uuid ( RO): 9a74000a-8481-1b36-2dd1-a58cd6747623
                  host-uuid ( RO): 82cf5c29-db31-4cc3-b057-db8f85324232
      IP-configuration-mode ( RO): Static
                         IP ( RO): 10.xx.xx.201
                    netmask ( RO): 255.255.255.0
                    gateway ( RO): 10.xx.xx.1
    IPv6-configuration-mode ( RO): None
                       IPv6 ( RO): 
               IPv6-gateway ( RO): 
       primary-address-type ( RO): IPv4
                    carrier ( RO): true
                  device-id ( RO): 1521
                device-name ( RO): I350 Gigabit Network Connection

Hey.
So i had a crash on 1 of my xcp-ng servers today and when i went into XO (open source version) i see that the host was still listed as running and online. It did not detect that the server went down and flag anything.

I also noticed no VM failure, but i am not sure if that is a miss config or just a bug. What does XO use to identify a host status?

Thanks

@olivierlambert Thanks for that ill plan for the weekend to do that and see how it goes.

Hey.
So after setting up my environment for all the network separation id like to now move the VMStorage mount from 1 server ip to another, I have setup dedicated bonded interfaces on my storage device to separate the VM work from normal NFS workloads.

So right now i have the server pointing to X.X.X.X and would like to move it to Y.Y.Y.Y, how can i do this without mounting a new storage, is it possible for me to power off the VM and edit the details or do i have to migrate or something??

Thanks