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Older files suddenly become inaccessible on Cloud Volumes ONTAP

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cloud-volumes-ontap-cvo
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Applies to

  • NetApp Cloud Volume ONTAP (CVO)
  • ONTAP 9
  • Microsoft Azure

Issue

  • ONTAP 9 - Cloud Volumes system using tiered storage with Azure blobs, some older files become inaccessible while newer files remain accessible.
  • The EMS log contains these errors:
Fri Jul 31 11:42:37 +0100 [HOSTNAME-01: OscHighPriThreadPool: objstore.host.unresolvable:error]: Object-store server host name "kjfhwkjhfwkjkjvrwoi.blob.core.windows.net" cannot be resolved to an IP address on node 2951ce76-083e-12e9-a4b6-000d4a2a9013.
Fri Jul 31 11:42:37 +0100 [HOSTNAME-01: secd: secd.unexpectedFailure:debug]: vserver () Unexpected failure. Error: DNS forward lookup procedure failed [2009 ms] Failed to connect to 10.44.241.26 for DNS via Source Address 10.244.209.6: Operation timed out [ 3069] Failed to connect to 10.73.6.169 for DNS via Source Address 10.244.209.6: Operation timed out [ 3069] Entry for host-name: kjfhwkjhfwkjkjvrwoi.blob.core.windows.net not found in any of the available sources **[ 3073] FAILURE: Hostname lookup failed with error: hostname nor servname provided, or not known

 

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