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CONTAP-375707: Intermittent CIFS access loss due to lock manager issue

  1. Last updated
    Apr 2, 2025
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46
Visibility:
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Votes:
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Category:
ontap-9
Specialty:
nas
Last Updated:
4/2/2025, 3:09:42 PM

Issue

  • Intermittent access from HyperV clients to Continous Availability (CA) CIFS Shares
  • Issue starts occurring after a switch reboot/swap
  • ems.log shows cifs operations are timing out:

NODE-05    ERROR         Nblade.CifsOperationTimedOut: Detected a timed out CIFS operation. SMB command for this operation: SMB2_COM_CREATE, Number of times this command was suspended: 4520, Number of times this command was restarted: 0, Last CSM error during this operation: CSM_OK, Remote blade UUID: 20e0e734-03f5-11e9-8cb6-123456789a1 (NODE-01), Is QoS enabled: QoS_disabled, Last nBlade error during this operation: SPINNP_ERR_DELAY, Client IP address: 10.X.XX.XX, Local IP address: 10.XX.XX.XX, Target Vserver ID: 1, Target disk's DSID: 1047, Target Vserver Name: SVM_HV
NODE-05    ERROR         Nblade.CifsOperationTimedOut: Detected a timed out CIFS operation. SMB command for this operation: SMB2_COM_CREATE, Number of times this command was suspended: 4572, Number of times this command was restarted: 0, Last CSM error during this operation: CSM_OK, Remote blade UUID: 20e0e734-03f5-11e9-8cb6-123456789a1 (NODE-01), Is QoS enabled: QoS_disabled, Last nBlade error during this operation: SPINNP_ERR_DELAY, Client IP address: 10.X.XX.XX, Local IP address: 10.XX.XX.XX, Target Vserver ID: 1, Target disk's DSID: 1047, Target Vserver Name: SVM_HV
NODE-05    ERROR         Nblade.CifsOperationTimedOut: Detected a timed out CIFS operation. SMB command for this operation: SMB2_COM_CREATE, Number of times this command was suspended: 4564, Number of times this command was restarted: 0, Last CSM error during this operation: CSM_OK, Remote blade UUID: 20e0e734-03f5-11e9-8cb6-123456789a1 (NODE-01), Is QoS enabled: QoS_disabled, Last nBlade error during this operation: SPINNP_ERR_DELAY, Client IP address: 10.X.XX.XX, Local IP address: 10.XX.XX.XX, Target Vserver ID: 1, Target disk's DSID: 1047, Target Vserver Name: SVM_HV

 

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