Lost connectivity between ESX host and VC server

[HUNGAMA]

Hi Friends

I have 4 Hosts in my DRS/HA cluster and 1 VC Server. Most of the times one ESX host in the cluster shows a yellow exclamation icon saying that not responding under VI Client. I checked the ip communication between esx host and vc server is ok. I can ping from both of the sides. Is there any other way to check the communication? I checked the vmware-vpxa and mgmt-vmware services are ok on the esx host. What could be the reason for this?

Regards

Shail

[mike_laspina]

Check or post these logs for possible indicators

cat /var/log/vmkernel.log

cat /var/log/vmware/vpx/vpxa.log

and use

esxtop

to the check the host resource utilization

[BenLe]

Most issues are related to DNS. All ESX hosts as well as the VC server must be able to resolve the DNS-name to IP (and vice versa) of each other host in the cluster.

[admin]

Check the vpxa logs on the not-responding host for errors (/var/log/vmware/vpx/vpxa*.log)

[HUNGAMA]

It is working now. I did not do anything. there was nothing unusual in the logs.

Thanks for the replies friends at least I got some idea for next time.

Regards

Shail

[cmanucy]

Issues like this of "I didn't do anything, now it's working" are most certainly a DNS issue.

Make sure that your /etc/nsswitch.conf reads:

hosts: dns files

NOT

hosts: files dns

I bet your problems will go away and stay away.