https://community.netapp.com/t5/ONTAP-Discussions/Queue-depth-for-NAS/m-p/438484#M41214 <P>Ethernet doesn't have a concept of queue depth. There is a limit of 128 concurrent I/Os in ONTAP now so please ensure your NFS clients are set appropriately. There are certain connection/io limits for SMB2/3 but I don't recall them off the top of my head. <A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/nblade_logs_in_EMS_execsOverLimit_error" target="_blank" rel="noopener">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/nblade_logs_in_EMS_execsOverLimit_error</A></P><P>&nbsp;</P><P>Edit: Found some KBs with some other CIFS and TCP/UDP limits:</P><P><A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/Do_both_UDP_and_TCP_connections_count_towards_the_100%2C000_connection_limit_per_node%3F" target="_blank">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/Do_both_UDP_and_TCP_connections_count_towards_the_100%2C000_connection_limit_per_node%3F</A></P><P><A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_shares_access_may_fail_and_EMS_displays_error_%22cifsMaxSessPerUsrConn%22" target="_blank">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_shares_access_may_fail_and_EMS_displays_error_%22cifsMaxSessPerUsrConn%22</A></P><P><A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_Disconnects_from_Windows_host_with_error_%22Too_many_creds_on_single_session%22" target="_blank">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_Disconnects_from_Windows_host_with_error_%22Too_many_creds_on_single_session%22</A></P><P><A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_shares_unavailable_due_to_Nblade.cifsMaxOpenSameFileNotice" target="_blank">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_shares_unavailable_due_to_Nblade.cifsMaxOpenSameFileNotice</A></P><P><A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_Client_Change_Notification_setting_can_cause_unnecessary_load_in_ONTAP" target="_blank">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_Client_Change_Notification_setting_can_cause_unnecessary_load_in_ONTAP</A></P><P><A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_Max_Multiplex_and_how_to_increase_maximum_number_of_simultaneous_outstanding_Windows_client" target="_blank">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_Max_Multiplex_and_how_to_increase_maximum_number_of_simultaneous_outstanding_Windows_client</A></P><P>&nbsp;</P><P>Hope this helps!</P><P>&nbsp;</P> Tue, 20 Sep 2022 15:55:47 GMT paul_stejskal 2022-09-20T15:55:47Z https://community.netapp.com/t5/ONTAP-Discussions/Queue-depth-for-NAS/m-p/438483#M41213 <P>I understand we can set/display queue depth on FC port. But is there something of that sorts for a network interface ?</P><P>&nbsp;</P><P>I am trying to understand how many input/outputs can be queued on a network interface used for NAS ?</P> Tue, 20 Sep 2022 15:18:30 GMT https://community.netapp.com/t5/ONTAP-Discussions/Queue-depth-for-NAS/m-p/438483#M41213 Vara5a3 2022-09-20T15:18:30Z https://community.netapp.com/t5/ONTAP-Discussions/Queue-depth-for-NAS/m-p/438484#M41214 <P>Ethernet doesn't have a concept of queue depth. There is a limit of 128 concurrent I/Os in ONTAP now so please ensure your NFS clients are set appropriately. There are certain connection/io limits for SMB2/3 but I don't recall them off the top of my head. <A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/nblade_logs_in_EMS_execsOverLimit_error" target="_blank" rel="noopener">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/nblade_logs_in_EMS_execsOverLimit_error</A></P><P>&nbsp;</P><P>Edit: Found some KBs with some other CIFS and TCP/UDP limits:</P><P><A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/Do_both_UDP_and_TCP_connections_count_towards_the_100%2C000_connection_limit_per_node%3F" target="_blank">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/Do_both_UDP_and_TCP_connections_count_towards_the_100%2C000_connection_limit_per_node%3F</A></P><P><A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_shares_access_may_fail_and_EMS_displays_error_%22cifsMaxSessPerUsrConn%22" target="_blank">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_shares_access_may_fail_and_EMS_displays_error_%22cifsMaxSessPerUsrConn%22</A></P><P><A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_Disconnects_from_Windows_host_with_error_%22Too_many_creds_on_single_session%22" target="_blank">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_Disconnects_from_Windows_host_with_error_%22Too_many_creds_on_single_session%22</A></P><P><A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_shares_unavailable_due_to_Nblade.cifsMaxOpenSameFileNotice" target="_blank">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_shares_unavailable_due_to_Nblade.cifsMaxOpenSameFileNotice</A></P><P><A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_Client_Change_Notification_setting_can_cause_unnecessary_load_in_ONTAP" target="_blank">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_Client_Change_Notification_setting_can_cause_unnecessary_load_in_ONTAP</A></P><P><A href="https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_Max_Multiplex_and_how_to_increase_maximum_number_of_simultaneous_outstanding_Windows_client" target="_blank">https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/CIFS_Max_Multiplex_and_how_to_increase_maximum_number_of_simultaneous_outstanding_Windows_client</A></P><P>&nbsp;</P><P>Hope this helps!</P><P>&nbsp;</P> Tue, 20 Sep 2022 15:55:47 GMT https://community.netapp.com/t5/ONTAP-Discussions/Queue-depth-for-NAS/m-p/438484#M41214 paul_stejskal 2022-09-20T15:55:47Z