As above, you will need to check the vmkernel & hostd logs to see if anything stands out when this occurs. You may also want to check you have the correct VIB installed for the card, i assume you have checked the HCL?
I have just used the Lenonvo specific ISO to install so would assume it has the correct driver for it's own network card. Not sure what you mean about the HCL?
Ran the backup and after the lockup checked the vmkernal log and only reference to the vmnic4 (the connection) is
2019-12-30T19:44:29.367Z cpu4:2097256)<NMLX_INF> nmlx4_en: vmnic4: nmlx4_en_RxQAlloc - (vmkdrivers/native/BSD/Network/mlnx/nmlx4/nmlx4_en/nmlx4_en_multiq.c:628) RX queue 1 is allocated
2019-12-30T19:44:29.388Z cpu4:2097256)<NMLX_INF> nmlx4_en: vmnic4: nmlx4_en_QueueApplyFilter - (vmkdrivers/native/BSD/Network/mlnx/nmlx4/nmlx4_en/nmlx4_en_multiq.c:2114) MAC RX filter (class 1) at index 0 is applied on
2019-12-30T19:44:29.388Z cpu4:2097256)<NMLX_INF> nmlx4_en: vmnic4: nmlx4_en_QueueApplyFilter - (vmkdrivers/native/BSD/Network/mlnx/nmlx4/nmlx4_en/nmlx4_en_multiq.c:2121) RX ring 1, QP[0x49], Mac address 00:50:56:68:f0:d1
and a bit further down
2019-12-30T20:00:29.401Z cpu0:2097256)<NMLX_INF> nmlx4_en: vmnic4: nmlx4_en_QueueRemoveFilter - (vmkdrivers/native/BSD/Network/mlnx/nmlx4/nmlx4_en/nmlx4_en_multiq.c:2294) MAC RX filter (class 1) at index 0 is removed from
2019-12-30T20:00:29.401Z cpu0:2097256)<NMLX_INF> nmlx4_en: vmnic4: nmlx4_en_QueueRemoveFilter - (vmkdrivers/native/BSD/Network/mlnx/nmlx4/nmlx4_en/nmlx4_en_multiq.c:2301) RX ring 1, QP[0x49], Mac address 00:50:56:68:f0:d1
2019-12-30T20:00:29.401Z cpu0:2097256)<NMLX_INF> nmlx4_en: vmnic4: nmlx4_en_RxQFree - (vmkdrivers/native/BSD/Network/mlnx/nmlx4/nmlx4_en/nmlx4_en_multiq.c:789) RX queue 1 is freed
Only thing in hostd that looks unusual is
2019-12-30T20:14:15.688Z info hostd[2099523] [Originator@6876 sub=Libs opID=5c5015c6] NetstackInstanceImpl: congestion control algorithm: newreno
2019-12-30T20:14:17.566Z info hostd[2098897] [Originator@6876 sub=Vimsvc.TaskManager opID=sps-Main-65991-131-73-3a-15dc user=vpxuser:JVNET.LOCAL\vpxd-extension-fb0a6774-4559-4040-a1e8-ed7b2a05ec83] Task Created : haTask--vim.vslm.host.CatalogSyncManager.queryCatalogChange-539196836
2019-12-30T20:14:17.567Z info hostd[2099521] [Originator@6876 sub=Default opID=sps-Main-65991-131-73-3a-15dc user=vpxuser:JVNET.LOCAL\vpxd-extension-fb0a6774-4559-4040-a1e8-ed7b2a05ec83] Transfer to exception eraro code: 403, message:
2019-12-30T20:14:17.568Z info hostd[2099521] [Originator@6876 sub=Default opID=sps-Main-65991-131-73-3a-15dc user=vpxuser:JVNET.LOCAL\vpxd-extension-fb0a6774-4559-4040-a1e8-ed7b2a05ec83] AdapterServer caught exception: N3Vim5Fault8NotFound9ExceptionE(Fault cause: vim.fault.NotFound
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