Unable to access files or folders on a FlexCache via CIFS

CIFS access to files or folders are failing, appears to hang on the client

EMS logs on the impacted node may show SPINNP_ERR_ENOMEM errors

Nblade_CifsOperationTimedOut_1:error]: params: {'remoteBladeID': 'remoteBladID', 'cmdRestartCnt': '0', 'vserverId': '#', 'commandName': 'SMB2_COM_CREATE', 'isQosEnabled': 'QoS_disabled', 'lastSpinNpError': 'SPINNP_ERR_NOMEM', 'localIpAddress': '10.1.1.2', 'lastCsmError': 'CSM_OK', 'clientIpAddress': '10.1.1.3', 'vserverName': 'vserver', 'suspensionCnt': '1234', 'dsId': '####'}