ESXi Disconnects from vCenter

[JasonNye]

Hello VMware,

I have been experiencing problems with ESXi 4.1.0 (Build 260247) disconnecting from vCenter. I am currently evaluating Vmware View. When connecting an ESX host to vcenter I do not experience any problems. When connecting ESXi host to vCenter the host will connect for about a minute and then disconnect. The vCenter, Active Directory, DNS, DHCP, and ESXi host are all on the same network without any firewalls in between.

I have a tried using the knowledge base article titled "Diagnosing an ESX Server that is Disconnected or Not Responding in VirtualCenter" without any success. I can login into the ESXi host with ssh and ping various servers on the network using dns and ip addresses.

Attached is a copy of the message, hostd, and vxpa log from the ESXi host.

Any help would be greatly appreciated .

[a_p_ · Accepted solution]

From the logfiles it looks like you are using vServer 4.0.

Section for VMware VirtualCenter Agent, pid=56646, version=4.0.0, build=build-208111, option=Release

ESX(i) 4.1 hosts require vCenter Server 4.1, so you will have to upgrade vCenter Server to make this work.

see http://www.vmware.com/pdf/vsphere4/r40/vsp_compatibility_matrix.pdf (page 3)

André

[AlbertWT]

Ah.. so in this case the VCenter must be greater or equal than the ESXi host version for logging to work ?

Kind Regards,

AWT

[mittim12]

Yes, in order to manage 4.1 host you need vCenter 4.1. See this compatbility chart, http://www.vmware.com/pdf/vsphere4/r40/vsp_compatibility_matrix.pdf

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[chadwickking]

Hi Albert!,

Yes you absolutely will have to upgrade vCenter first. This is always the first portion of any upgrade. You will ALWAYS have to do vCenter before your host.

I am curious if the Document covered that. I am sure it did I will have to look it over when I have time.

Cheers,

Chad King

VCP-410 | Server+

Twitter: http://twitter.com/cwjking

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[sabya1232003]

There is 1 more thing you can crosscheck before upgrade to 4.1.If you have few ESX 4.0 hosts being managed by vCenter 4.0 better try to install the VI client 4.1 and try to connect the ESXi 4.1.This will ensure that you have no issues with the ESX host and next you can plan to upgrade the vCenter to 4.1

[JasonNye]

Hi Everyone,

Thank you for all your help. After upgrading vCenter to version 4.1 I was able to join an ESXi 4.1 host to it.