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CIFS share access slowness with FPolicy EAGAIN errors

CIFS share access slowness with FPolicy EAGAIN errors

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Category:: ontap-9

Specialty:: nas

Last Updated:

Applies to

ONTAP 9
CIFS
FPolicy

Issue

CIFS client gets severe slowness to access CIFS shares
The slowness disappears after migrating the data interface to its partner node
EMS log shows FPolicy Write EAGAIN error along with CIFS operation timed out error

[node1: fpolicy: fpolicy.eagain.on.write:NOTICE]: Write returned EAGAIN while sending notification to the FPolicy server "10.10.10.10" for vserver ID 10.

[node1: kernel: nblade_cifsoperationtimedout_1:ERROR]: params: commandName:SMB2_COM_READ,isQosEnabled:QoS_disabled,localIpAddress:10.10.10.100,lastSpinNpError:SPINNP_ERR_FPOLICY_REQD,clientIpAddress:10.10.10.245,cmdRestartCnt:0,suspensionCnt:2,vserverId:13,system_id:0538184752,sys_version:9.7P11,remoteBladeID:bdba0013-8032-11eb-88d1-d039ea280e22 (node1),lastCsmError:CSM_OK

Performance Archives might display a high SMB2 Read/Write latency while no latency on the volume layer