Network uplink redundancy lost

[Gert101]

Hi Guys

I keep getting the above mentioned alarm once in a while and I haven't been able to find the problem. I've replaced network cables and checked in Vcentre everything looks fine.

Twice now over the past few weeks I've lost access to the VMs on the server but not all of them only some of them. Then as soon as I migrate them to another host all is working again.

Any where I can start looking?

I have 5x ESXI 5.1 servers running.

Compellent storage

Dell R710 servers.

[zXi_Gamer]

I keep getting the above mentioned alarm once in a while and I haven't been able to find the problem. I've replaced network cables and checked in Vcentre everything looks fine.

If you have configured a cluster with a HA/DRS, then the agent requires that the Management portgroup should be having 2 uplinks in case of any 1 nic failure. If you have provided 2 nics, and still you are getting this error, then you need to check in the vmkernel logs of the host to see if the nic has gone any auto-negate process.

Twice now over the past few weeks I've lost access to the VMs on the server but not all of them only some of them. Then as soon as I migrate them to another host all is working again.

I do believe if your VMs are in the same vswitch as your management portgroup. Can you move your VMs to a different vSwitch to eliminate the vmnic probability?

[Gert101]

Thanks zXi-Gamer I will check the logs.

My Management and VM portgroups are both in their own Vswitch.

[Abhilash Basavarajaiah]

Can you check the logs at the time of this alarm?

cat /var/log/messages | grep -i link

tail -fv /var/log/messages | grep -i link

[Gert101]

Hi Guys this is all I have under Var/log

/var/log # ls

Xorg.log              ipmi                  vmkdevmgr.log

auth.log              lacp.log              vmkernel.log

boot.gz               rhttpproxy.log        vmkeventd.log

configRP.log          shell.log             vmksummary.log

dhclient.log          smbios.bin            vmkwarning.log

esxcli.log            storagerm.log         vmware

esxupdate.log         sysboot.log           vobd.log

fdm.log               syslog.log            vprobed.log

hostd-probe.log       usb.log               vpxa.log

hostd.log             vmamqpd.log

hostprofiletrace.log  vmauthd.log

[wmarusiak]

Hi,

I suggest to provide more information about your config.

[pierreLx]

Hi,

I think you should check your load balancing settings. If you are doing iscsi port binding don't forget that the native loadbalancing technics are not all compatible with your storage array so put it to fixed to be sure and test active/passive configuration with nics in different order.

Regards