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    • https://kb.netapp.com/on-prem/ontap/da/SAN/SAN-KBs/How_to_check_FCP_error_counters
      Applies to ONTAP 9 Fiber Channel (FCP) networks Description This KB gives directions on how to check for error counters in ONTAP on FCP LIFs
    • https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/How_to_decode_STIO__found_hung_cmd
      state=5: DATAOUT_WAIT This indicates that the FC target is waiting for something to come back from the host after accepting the write request; however, nothing came back within the expected timeout va...state=5: DATAOUT_WAIT This indicates that the FC target is waiting for something to come back from the host after accepting the write request; however, nothing came back within the expected timeout value. state=8: DATAINRESP_SENT This indicates that the FC target is waiting for something to come back from the host after accepting the read request; however, no payload was received within the expected timeout value.
    • https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/High_latency_on_FC_LUN_with_IO_WQE_failure_in_EMS
      High latency observed intermittently on FC LUN Brocade switch repeatedly reported link resets due to credit loss and C3 Tx discards or timeouts on specific port under porterrshow tx rx in err g_eof sh...High latency observed intermittently on FC LUN Brocade switch repeatedly reported link resets due to credit loss and C3 Tx discards or timeouts on specific port under porterrshow tx rx in err g_eof shrt long eof out c3 fail sync sig tx rx err err 00:02:11.754993 SCN LR_PORT(0);g=0x266 LR_IN D2,P0 D2,P0 0 NA 00:02:26.934854 SCN LR_PORT(0);g=0x266 LR_OUT D2,P0 D2,P0 0 NA 00:02:39.918129 SCN Port Offline;rsn=0x4,g=0x268 D2,P0 D2,P0 0 NA 00:02:40.770569 SCN LR_PORT(0);g=0x268 D2,P0 D2,P0 0 NA
    • https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/VMware_cannot_access_LUNs_LUN_is_visible_but_shows_0_kb_in_size
      Applies to ONTAP 9 VMware Issue Vmware cannot access LUNs. LUN is visible but shows 0 kb in size. EMS logs: fcp_io_status_1, event="Adapter:0f, found hung cmd:0xfffff808e74c7498(state=5, flags=0x0, ct...Applies to ONTAP 9 VMware Issue Vmware cannot access LUNs. LUN is visible but shows 0 kb in size. EMS logs: fcp_io_status_1, event="Adapter:0f, found hung cmd:0xfffff808e74c7498(state=5, flags=0x0, ctio_sent=1/1,RecvExAddr=0x12f120, OX_ID=0xd28, RX_ID=0xffff,SID=0xc90e00, Cmd[8A] fcp_io_status_1, event="Adapter:0f AEN 0x8048 (RECV_ERROR) MboxStatus1 0xfffe MboxStatus2 0x2