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ONTAP Azure node looses access to blob storage and recovers

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27
Visibility:
Public
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0
Category:
cloud-volumes-ontap-cvo
Specialty:
core
Last Updated:

Applies to

  • ONTAP 9
  • Cloud Volumes ONTAP (CVO)
  • Microsoft Azure

Issue

  • ONTAP Azure node/cluster looses access to blob storage and quickly recovers
  •  Alert received:

pha.obj.storeUnavailable:ONTAP could not communicate with the object store,"object_store0"

  • EMS logging:

Communication to backend object store is lost...
[<node>: OscHighPriThreadPool: pha.obj.storeUnavailable:EMERGENCY]: ONTAP could not communicate with the object store, "object_store0".
[<node>: PHO_SCAN: pha.obj.scanFailure:error]: ONTAP could not get a list of objects from the object store, "object_store0", at "roots.blob.core.windows.net", using IP address "10.x.x.x" with error: store is inaccessible.
[<node>: pha_main010: scsi.cmd.adapterHardwareErrorEMSOnly:error]: Disk device 0d.1L0: Adapter detected hardware error: HA status 0xb: cdb <CDB>. Disk 0d.1 S/N [SN] UID [UID] Target Address [unknown]

 

Communication is restored successfully...
[<node>: OscLowPriThreadPool: pha.obj.storeAvailable:notice]: ONTAP successfully communicated with the object store, "object_store0".
[<Node>: pha_main010: scsi.cmd.retrySuccess:debug]: Disk device 0d.1L0: request successful after retry #2/#0: cdb <CDB> (100011).

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