1 out of 3 pools at work failed rolling pool update.
When I try to put host 2 into maintence mode to finish updates i get this error...
Support Ticket - Ticket#7763405
host.setMaintenanceMode
{
"id": "60701efd-089c-4822-97c0-1a1057f3f9aa",
"maintenance": true
}
{
"code": "VM_REQUIRES_SR",
"params": [
"OpaqueRef:841e7606-d545-cb71-f67c-e48b5114a1e8",
"OpaqueRef:0f356ee4-62f7-9608-8be5-df68d9a5cbb2"
],
"task": {
"uuid": "a24f5565-b2cb-f392-8095-1beceb7a4a17",
"name_label": "Async.host.evacuate",
"name_description": "",
"allowed_operations": [],
"current_operations": {},
"created": "20260828T19:57:29Z",
"finished": "20260828T19:57:29Z",
"status": "failure",
"resident_on": "OpaqueRef:43c121e7-4ba4-193b-1e41-08c0f7e15690",
"progress": 1,
"type": "<none/>",
"result": "",
"error_info": [
"VM_REQUIRES_SR",
"OpaqueRef:841e7606-d545-cb71-f67c-e48b5114a1e8",
"OpaqueRef:0f356ee4-62f7-9608-8be5-df68d9a5cbb2"
],
"other_config": {},
"subtask_of": "OpaqueRef:NULL",
"subtasks": [],
"backtrace": "(((process xapi)(filename ocaml/xapi/xapi_host.ml)(line 629))((process xapi)(filename hashtbl.ml)(line 159))((process xapi)(filename hashtbl.ml)(line 165))((process xapi)(filename hashtbl.ml)(line 170))((process xapi)(filename ocaml/xapi/xapi_host.ml)(line 625))((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/rbac.ml)(line 228))((process xapi)(filename ocaml/xapi/rbac.ml)(line 238))((process xapi)(filename ocaml/xapi/server_helpers.ml)(line 78)))"
},
"message": "VM_REQUIRES_SR(OpaqueRef:841e7606-d545-cb71-f67c-e48b5114a1e8, OpaqueRef:0f356ee4-62f7-9608-8be5-df68d9a5cbb2)",
"name": "XapiError",
"stack": "XapiError: VM_REQUIRES_SR(OpaqueRef:841e7606-d545-cb71-f67c-e48b5114a1e8, OpaqueRef:0f356ee4-62f7-9608-8be5-df68d9a5cbb2)
at Function.wrap (file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/_XapiError.mjs:16:12)
at default (file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/_getTaskResult.mjs:13:29)
at Xapi._addRecordToCache (file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/index.mjs:1229:24)
at file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/index.mjs:1263:14
at Array.forEach (<anonymous>)
at Xapi._processEvents (file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/index.mjs:1253:12)
at Xapi._watchEvents (file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/index.mjs:1460:14)"
}
SR are not connected to master host after reboot from updates. When try to connect them i get error...
[image: 1787947508872-screenshot-2026-08-28-160401.png]
pbd.connect
{
"id": "e96ec5d8-c70f-c877-4263-f2cf763e7048"
}
{
"code": "SR_BACKEND_FAILURE_108",
"params": [
"",
"Unable to detect an NFS service on this target.",
""
],
"task": {
"uuid": "5574bfe5-1874-35f8-f53b-c9fc1abaebb5",
"name_label": "Async.PBD.plug",
"name_description": "",
"allowed_operations": [],
"current_operations": {},
"created": "20260828T20:03:19Z",
"finished": "20260828T20:03:22Z",
"status": "failure",
"resident_on": "OpaqueRef:43c121e7-4ba4-193b-1e41-08c0f7e15690",
"progress": 1,
"type": "<none/>",
"result": "",
"error_info": [
"SR_BACKEND_FAILURE_108",
"",
"Unable to detect an NFS service on this target.",
""
],
"other_config": {},
"subtask_of": "OpaqueRef:NULL",
"subtasks": [],
"backtrace": "(((process xapi)(filename ocaml/xapi-idl/storage/storage_interface.ml)(line 455))((process xapi)(filename src/lib/idl.ml)(line 558))((process xapi)(filename ocaml/xapi/storage_utils.ml)(line 148))((process xapi)(filename lib/backtrace.ml)(line 251))((process xapi)(filename ocaml/xapi/xapi_pbd.ml)(line 196))((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/xapi/message_forwarding.ml)(line 6061))((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": "SR_BACKEND_FAILURE_108(, Unable to detect an NFS service on this target., )",
"name": "XapiError",
"stack": "XapiError: SR_BACKEND_FAILURE_108(, Unable to detect an NFS service on this target., )
at Function.wrap (file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/_XapiError.mjs:16:12)
at default (file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/_getTaskResult.mjs:13:29)
at Xapi._addRecordToCache (file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/index.mjs:1229:24)
at file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/index.mjs:1263:14
at Array.forEach (<anonymous>)
at Xapi._processEvents (file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/index.mjs:1253:12)
at Xapi._watchEvents (file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/index.mjs:1460:14)"
}
Update - bad port on switch.......
Update 2 - After updating synology to latest version i am no longer able to mount nfs 4.1 shares. I can not create one using 4.1. I will let me create with 4.0 not 4.1 How to remount NFS that were mounted as 4.1 now as 4.0?
ALl VMS down at this location currently.
Update 3 - Resolved... Synology update broke NFS 4.1. I had to ssh into synology and edit /etc/nfs/syno_nfs_conf and add nfs_minor_ver_enable=1 Now SR's mounted.
Update 4 - Found Patch notes about NFS version change. -
Version: 7.0.1-42218
NFSv4.1 and related advanced functions (multipathing) are no longer supported on Synology NAS models with the following package architectures: Alpine, Alpine4k, armada38x, Avoton, Braswell, Bromolow, Cedarview, Grantley, Monaco. If you had previously enabled NFSv4 and NFSv4.1, the maximum NFS protocol is set to NFSv4 by default after the update. For more information about the package architecture of your model, please refer to this article.
Our unit - RS1219+ Intel Atom C2538 Avoton
