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.
