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SCV backup fails Discovering Resources due to name resolution issue

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Applies to

SnapCenter Plug-in for VMware vSphere (SCV)

Issue

  • SCV backup job fails to discover resources with error:

The backup job <JOB_ID> has completed on primary
Status: failed
Task failures
Task 'Discovering Resources' failed with error: Unable to discover resources on SCV: Failed to get the storage system for host resource : Name : /<NFS_VOLUME>, Type: SDNASDir

  • The following notificaton is sent,

Unable to discover resources on SCV: Unable to get storage details for datastore <datastore> with managed object reference datastore-XXXX. Storage system(s) may need to be added, also ensure that the associated host is in a connected state.,

  • wfe_<JOB_ID>.log indicates Unable to discover resources on SCV: Failed to get the storage system for host resource

 INFO snapcenter --- [       Thread-3] c.n.w.m.WorkflowExecutor                 : Activity - Discovering Resources,  Starting
DEBUG snapcenter --- [       Thread-3] c.n.w.u.LogHelper                        : Starting discover resources activity
DEBUG snapcenter --- [       Thread-3] c.n.w.r.SCVBackupServiceImpl             : Discovering resources on SCV
DEBUG snapcenter --- [       Thread-3] c.n.w.r.u.RestClientUtil                 : Connecting to scv url: https://localhost:8144/scbr/smcoreplugin/discoverResources
ERROR snapcenter --- [       Thread-3] c.n.w.r.SCVBackupServiceImpl             : Unable to discover resources on SCV: Failed to get the storage system for host resource : Name : <NFS_VOLUME>, Type: SDNASDir
DEBUG snapcenter --- [       Thread-3] c.n.w.u.LogHelper                        : Exception in discover resources com.netapp.wfe.model.ApiException: Unable to discover resources on SCV: Failed to get the storage system for host resource : Name : <NFS_VOLUME>, Type: SDNASDir

  • vmcontrol_<JOB_ID>.log indicates Failed to get the storage system for host resource by using NFS LIF IP

DEBUG snapcenter --- [tp1825027294-18] c.n.a.d.VsphereDiscoveryManager          : Datastore type is NFS
DEBUG snapcenter --- [tp1825027294-18] c.n.a.m.DatastoreStorageDetailsCache     : Calling GetNasStorageInfo with NFS LIF <IP> and exportPath <NFS_VOLUME>
..
ERROR snapcenter --- [tp1825027294-18] c.n.a.s.c.SnapManagerStorageServiceImpl  : Failed to get the storage system for host resource : Name : <NFS_VOLUME>, Type: SDNASDir
ERROR snapcenter --- [tp1825027294-18] c.n.a.m.DatastoreStorageDetailsCache     : Failed to get the storage system for host resource : Name : <NFS_VOLUME>, Type: SDNASDir
ERROR snapcenter --- [tp1825027294-18] c.n.a.s.p.DiscoverResourcesManager       : [JobId:<JOB_ID>] com.netapp.nvpf.api.model.ApiException: Failed to get the storage system for host resource : Name : <NFS_VOLUME>, Type: SDNASDir
ERROR snapcenter --- [tp1825027294-18] c.n.a.s.p.DiscoverResourcesManager       : Encountered error while processing discover resources. Error: Failed to get the storage system for host resource : Name : <NFS_VOLUME>, Type: SDNASDir
com.netapp.nvpf.api.model.ApiException: Failed to get the storage system for host resource : Name : <NFS_VOLUME>, Type: SDNASDir

  • ProtectionService-<YYYYMMDD>.log reports error:

    Failed to run a command NetApp.DataProtection.Storage.CommandAPI.ConnectNcController, Exception:System.Net.Sockets.SocketException (00000005, 0xFFFDFFFF): Name or service not known
       at System.Net.Dns.GetHostEntryOrAddressesCore(String hostName, Boolean justAddresses, AddressFamily addressFamily, Nullable`1 startingTimestamp)
       at System.Net.Dns.GetHostAddresses(String hostNameOrAddress, AddressFamily family)
       at NetApp.Ontapi.NaServer..ctor(String name, String uri, Int32 port)
       at NetApp.DataProtection.Storage.CommandAPI.ConnectNcController.Connect(String name)
       at SnapDrive.Nsf.Core.Storage.StorageConnection.InitializeONTAP(SDStorageSystemId storageSystemId)

    • At a time different from backup job, ProtectionService.log reports error:

    [WRN] [Storage] [TID:11] [RID:] [CID:] [JID:-1] Failed to resolve <IP_ADDRESS> byHostEntry, Exception:System.Net.Internals.SocketExceptionFactory+ExtendedSocketException (00000005, 0xFFFDFFFF): Name or service not known
       at System.Net.Dns.InternalGetHostByAddress(IPAddress address)
       at System.Net.Dns.GetHostEntry(String hostNameOrAddress)
       at SnapDrive.Nsf.Common.Infrastructure.Storage.NetworkResourceIdCache.ResolveWithDns(String hostName)

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