Random VM disconnection issue on vSAN Cluster

[suhag79]

Hi all -

We have 4 Node  VMware ESXi, 6.5.0 vSAN cluster.  After upgrading to  ESXI 6.5 14320405 patch, we are getting random VM disconnection issue on vSAN cluster.

Can anyone help on this.

Thanks,

[tayfundeger]

Hi,

The problem you are experiencing may be related to firmware or driver. What hardware do you use? Also does vmkernel.log show a warning? Did you check?

[suhag79]

Thanks for reply.

We are using CISCO UCS C240 M4SX. Will check vmkernel.log.

Just to add, we have all 1G Eth interface NIC card with below drive and firmware version. I was checking CISCO compatibility matrix Cisco UCS Hardware Compatibility List However, could not found 1G NIC driver version.

  Advertised Link Modes: Auto, 1000BaseT/Full, 100BaseT/Full, 10BaseT/Full

   Auto Negotiation: false

   Cable Type: Twisted Pair

   Current Message Level: 0

   Driver Info:

         Bus Info: 0000:01:00:0

         Driver: igbn

         Firmware Version: 1.63.0:0x80000e78:0.385.8

        Version: 0.1.1.0

   Link Detected: true

   Link Status: Up

   Name: vmnic10

esxcli software vib list | grep igbn

igbn                           0.1.1.0-4vmw.650.3.96.13932383        VMW                 VMwareCertified   2019-10-08