Unable to live migrate VM between 2 local storages SR

henri9813

Hello.

I have this error while trying to migrate VM from a host to another host. ( same versions ).

Jul 10 10:58:06 server xapi: [debug||3148384 ||storage_utils] Got failure: checking for redirect, call was: -> SR.scan({sr:S(a2e6300f-10f2-ec61-bcfb-6a1d62a00bff);dbg:S(Async.VM.migrate_send R:afa4f5b49fd9)}), results.contents: ["No_storage_plugin_for_sr","a2e6300f-10f2-ec61-bcfb-6a1d62a00bff"]
Jul 10 10:58:06 server xapi: [debug||3148384 ||storage_utils] Not a redirect: -> SR.scan({sr:S(a2e6300f-10f2-ec61-bcfb-6a1d62a00bff);dbg:S(Async.VM.migrate_send R:afa4f5b49fd9)})
Jul 10 10:58:06 server xapi: [error||3148384 ||storage_interface] Storage_error ([S(No_storage_plugin_for_sr);S(a2e6300f-10f2-ec61-bcfb-6a1d62a00bff)]) (File "ocaml/xapi-idl/storage/storage_interface.ml", line 451, characters 49-56)
Jul 10 10:58:06 server xapi: [error||3148384 ||storage_migrate] Storage_migrate.MigrateLocal.prepare Caught error Storage_error ([S(No_storage_plugin_for_sr);S(a2e6300f-10f2-ec61-bcfb-6a1d62a00bff)]) while preparing for SXM
Jul 10 10:58:06 server xapi: [error||3148384 ||storage_migrate] Caught Storage_error ([S(Migration_preparation_failure);S(Storage_error ([S(No_storage_plugin_for_sr);S(a2e6300f-10f2-ec61-bcfb-6a1d62a00bff)]))]) during SXM:
Jul 10 10:58:06 server xapi: [error||3148384 ||task_server] Task 3 failed; Storage_error ([S(Internal_error);S(Storage_error ([S(Migration_preparation_failure);S(Storage_error ([S(No_storage_plugin_for_sr);S(a2e6300f-10f2-ec61-bcfb-6a1d62a00bff)]))]))])
Jul 10 10:58:06 server xapi: [debug||3148384 ||storage] TASK.signal 3 = ["Failed",["Internal_error","Storage_error ([S(Migration_preparation_failure);S(Storage_error ([S(No_storage_plugin_for_sr);S(a2e6300f-10f2-ec61-bcfb-6a1d62a00bff)]))])"]]

Do you know what No_storage_plugin_for_sr mean ?

It's a simple local storage

henri9813

Hello.

Problem Solved.

My case:

i have a pool of many hypervisors with only local storage, no shared SR ( yes it's not recommanded, i stopped doing this and i'm currently migrating everything to pool with Shared storage ).

Yesterday, i removed two hosts ( host 3 & host 4 ) whith local storages SR attached ( LVM ).

In XCP-NG, i "forgot" Host 3 & host 4, the hosts from the pool, but it doesn't forge the associated SR !

But Live migrating a VM from host 1 to host 2 ( of the same pool ) bot with local SR, FAIL because there is no SR plugin attached of Local Storage 4 ( hosts 4 ) neither Local storage 3 ( host 3 ).

So, i also forget theses 2 SRs and now it's ok.

i don't understand why SR not connected to anyone can prevent migration about vm from other to other sr.