Hi, I am running 2 x vSphere environments (v5.5) and have noticed a similar problem with both setups.
We sometimes have planned power outages, where we have to shut down everything for a day. Which is fine.
But when powering up everything, there will always be one or two VMs that just lose network connectivity.
So you power them up, and windows thinks their NIC is working fine, but you can ping in or out.
After restarting and trying things within the OS to fix this, I tried vMotioning the VM to another host, and it all just started working. A ping session went from 100% time outs to 100% replies as the machine was moving from one host to another.
We had an power outage a few weeks ago, and there were about 10 VMs that had this same behaviour. 2 of them required me to vMotion the VM 3 or 4 times before the NIC would work.
The fact that the same problem is occurring on 2 separate vSphere environments (same hardware) got me thinking that maybe there are other people having a similar issue.
Has anyone seen this before, or know something that might fix it?
Thanks,
Nathan
are you using VDS? and could you check issueVM event & tasks on that particular incident time stamp? is there anything stated like "Failed to open file /vmfs/volumes/UUID/.dvsData/ID/100 Status (bad0003)= Not found"?
if you are using Cisco switches check this KB article:
otherwise check these:
Hi thanks for the reply. .. No VDS.. When the problem happened last time, as far as the ESX logs were concerned, there was no problem..........
Hi P, I will look into the Cisco port security one, as we are running Cisco.
Thanks,
Nathan
