All of ESX4 hosts not responding after rebooting vCenter server

[hojyokinmo]

Hello

I'm constructing 5ESX+a vCenter serv.

I'm testing FT on the system.

Today vCenter OS (W2008) demanded　system reboot.

After rebooting vCenter Serv. All of ESX hosts have alert icon.

end indicate "not responding"

I tried to connect ESX hosts to vCenter again.

Once they came back normally, but after few seconds ,They turned red again.

All of them have ping connection to vCenter serv.

There are no red messages in Tusks and events.

Two messages are found in Summary of Cluster

・There aren't sufficient resource for HA failover.

・Can't contact primary HA agent.

I'm also not able to reset FT configuration because all of VMS aren't accessed from vCenter

What should I do?

[mlubinski]

From ESX hosts, can you ping every ESX host by shortname/FQDN? Can you also ping vCenter by shortname/fqdn?

is your cluster configure to use DNS resolution, or do you this by hosts file?

If you found this or any other answer useful please consider the use of the Helpful or correct buttons to award points

[AnatolyVilchins]

See content here - http://serverfault.com/questions/122541/all-of-esx4-hosts-not-responding-after-rebooting-vcenter-ser...

Message was edited by: Dave.Mishchen…

[hojyokinmo]

Thank you.

I do'nt use hostname for ESX hosts,I named hosts with ipaddress,

I configured hosts file also.

192.168.2.xx esx01

192.168.2.xx esx02

:

Ping arrived both ipaddress and hostname from vC to esx.

It seems that name resolution works.

Bad primary esx03: connected=0, dasState=running, vpxaDasState=running

And before rebooting, It worked without name resolving problem.

[hojyokinmo]

Dear Anatoly

I'm ordering technical support,but it will take several days until vmware accepts our question.

so I'm trying to solve the problem.

I didn't know that it is duty to have support. I will take care next time.

Thanks.

[Josh26]

Hi,

The problem with your hosts file is that you can't be certain the vCenter server and two hosts are doing the same resolving.

I would recommend getting a working internal DNS zone for your server and two hosts.

[hojyokinmo]

Hello.

I asked DNS settings to person in charge.

And I tested to connect one of ESX servers from vsphere client from vcenter server.(wihtout using vcenter).

it connected esx normally without being not responding.

if it is name resolution problem. I think it turns red also...