After more investigation, I can confirm that the problem is only for HVM. I tried with a PV vm and everything is fine.
For some reason, performing the call: VM.get_allowed_VBD_devices on a HVM while the VM is still in starting state only returns a subset of device Ids: [1, 2] instead of [1,2,3,…,15] on PV. The logic then reverts to ‘autodetect’ which also seems invalid for a HVM VM. -- Simon > On Apr 20, 2016, at 08:20, Simon Godard <sgod...@cloudops.com> wrote: > > Hi, > > We are getting a weird error when trying to start a VM (based on a HVM > template) when attaching more than 2 volumes. We are using XenServer 6.5 and > CloudStack 4.7.1. Here are the logs: > > ACS > Unable to start i-152-612-VM due to > The device name is invalid > at com.xensource.xenapi.Types.checkResponse(Types.java:1169) > at com.xensource.xenapi.Connection.dispatch(Connection.java:395) > at > com.cloud.hypervisor.xenserver.resource.XenServerConnectionPool$XenServerConnection.dispatch(XenServerConnectionPool.java:457) > at com.xensource.xenapi.VBD.create(VBD.java:322) > at > com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.createVbd(CitrixResourceBase.java:1148) > at > com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixStartCommandWrapper.execute(CitrixStartCommandWrapper.java:119) > at > com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixStartCommandWrapper.execute(CitrixStartCommandWrapper.java:53) > at > com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixRequestWrapper.execute(CitrixRequestWrapper.java:122) > at > com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:1678) > > XenServer > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:3c596e35d366|audit] VBD.create: VM = > '23da57b8-cc94-3edd-66af-97397c1e9f89 (i-152-614-VM)'; VDI = 'invalid' > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:3c596e35d366|xapi] Checking whether there's a migrate in > progress... > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:3c596e35d366|xapi] VBD.create (device = 3; uuid = > d32bd2fb-68d9-a20b-3632-43c5cffd5ca1; ref = > OpaqueRef:d5d36ea6-2b79-2efd-c2ad-27403ffbdbf8) > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18677027 UNIX > /var/xapi/xapi||dummytaskhelper] task dispatch:SR.get_other_config > D:764bb880e1f7 created by task D:9e603ca8e24b > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18677028 UNIX > /var/xapi/xapi||dummytaskhelper] task dispatch:SR.get_sm_config > D:b30be613f286 created by task D:9e603ca8e24b > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VM.get_allowed_VBD_devices D:65d1aeb0e377|audit] > VM.get_allowed_VBD_devices: VM = '23da57b8-cc94-3edd-66af-97397c1e9f89 > (i-152-614-VM)' > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:f5513cd51b7d|audit] VBD.create: VM = > '23da57b8-cc94-3edd-66af-97397c1e9f89 (i-152-614-VM)'; VDI = > '7c882c4f-eaed-49c9-952d-53f2db998ecd' > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:f5513cd51b7d|xapi] Checking whether there's a migrate in > progress... > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:f5513cd51b7d|xapi] VBD.create (device = 2; uuid = > b83f771a-c796-8f5b-26de-fb648327e305; ref = > OpaqueRef:f1477777-8d60-52b6-8041-72cf95fa7f44) > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VM.get_allowed_VBD_devices D:c180118513de|audit] > VM.get_allowed_VBD_devices: VM = '23da57b8-cc94-3edd-66af-97397c1e9f89 > (i-152-614-VM)' > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:3a50f805fbb1|audit] VBD.create: VM = > '23da57b8-cc94-3edd-66af-97397c1e9f89 (i-152-614-VM)'; VDI = > '78ab2cc5-a7ec-4709-9556-a1d6bfbc2b65' > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:3a50f805fbb1|xapi] Checking whether there's a migrate in > progress... > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:3a50f805fbb1|xapi] VBD.create (device = 1; uuid = > 6556fa97-356f-65ec-fcda-d41205804b46; ref = > OpaqueRef:c71b9afd-7069-5caf-f67b-befc83de722b) > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VM.get_allowed_VBD_devices D:0cdd9a03fdea|audit] > VM.get_allowed_VBD_devices: VM = '23da57b8-cc94-3edd-66af-97397c1e9f89 > (i-152-614-VM)' > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:b52da7a69374|audit] VBD.create: VM = > '23da57b8-cc94-3edd-66af-97397c1e9f89 (i-152-614-VM)'; VDI = > '7634db62-6f48-4136-aac1-4db7a5ad77d6' > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:b52da7a69374|xapi] Checking whether there's a migrate in > progress... > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:b52da7a69374|xapi] VBD.create (device = 0; uuid = > bbbd2eac-24ce-7c5d-315e-72eaaa9ec161; ref = > OpaqueRef:9dd9c448-2718-9849-908c-78b2c394f6ac) > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VM.get_allowed_VBD_devices D:30446069f7d1|audit] > VM.get_allowed_VBD_devices: VM = '23da57b8-cc94-3edd-66af-97397c1e9f89 > (i-152-614-VM)' > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:a285caa8ad4a|audit] VBD.create: VM = > '23da57b8-cc94-3edd-66af-97397c1e9f89 (i-152-614-VM)'; VDI = > '8ed37e28-10e7-45f9-85d1-f1443b673701' > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:a285caa8ad4a|xapi] Checking whether there's a migrate in > progress... > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:a285caa8ad4a|backtrace] Raised at xapi_vbd.ml:135.9-75 -> > threadext.ml:20.20-24 -> threadext.ml:20.62-65 -> > message_forwarding.ml:3480.3-150 -> server.ml:24430.82-282 -> > rbac.ml:229.16-23 > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:a285caa8ad4a|backtrace] Raised at rbac.ml:238.10-15 -> > server_helpers.ml:79.11-41 > Apr 19 14:00:33 cca-t2-xen01 xapi: [debug|cca-t2-xen01|18676540 INET > :::80|VBD.create R:a285caa8ad4a|dispatcher] Server_helpers.exec > exception_handler: Got exception INVALID_DEVICE: [ autodetect ] > > > Could it be a side-effect of https://github.com/apache/cloudstack/pull/792 > <https://github.com/apache/cloudstack/pull/792> ? > > Thanks, > > Simon GODARD > Développeur Principal | Lead Developer > t 514.880.3777 > > CloudOps Votre partenaire infonuagique | Cloud Solutions Experts > 420 rue Guy | Montreal | Quebec | H3J 1S6 > w cloudops.com <http://cloudops.com/> | tw @CloudOps_ >
