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vsphere cannot contact the specified host

Posted on 2012-03-19
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Last Modified: 2012-04-01
I have a vmware 4.1 managed by vsphere 4.1 several of my host's show disconnected when trying to reconnect I get a specified host not responding. I removed one from inventory but no luck adding that host back. Each of the host's can be managed by the vsphere client software just fine so I am assuming that it is a vcenter issue any help would be appreciated.
Thanks
Chris
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Question by:cclanton
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LVL 119
ID: 37738176
restart network management agents on the host.

restart vCenter Server service on the vCenter server.
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Expert Comment

by:IanTh
ID: 37738217
do you see a green or maybe amber led (activety) on the affected host

is the host a blade server
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Author Comment

by:cclanton
ID: 37738273
Sorry should have included that the management service had been restarted on all machines so no joy on that avenue.
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Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

 
LVL 119
ID: 37738303
Check you have no storage issues, no iSCSI or FC LUNs added or removed, this can cause Host issues.

Missing datastores.
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Author Comment

by:cclanton
ID: 37738329
The host that I slicked does not show correct storage but the other two which I am trying to reconnect have identical storage/networking showing in the local host each is currently running vm's which are operating correctly.
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LVL 119
ID: 37738343
no path or storage changes on storage network, and no one has issued a Rescan Storage or Refresh datastores
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Author Comment

by:cclanton
ID: 37738358
No storage changes but I have probably run a rescan storage since this began.
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LVL 119
ID: 37738382
It's possible this issue is caused by storage changes, we can cause the issue you our experiencing.

Restart Hosts with issues.
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Author Comment

by:cclanton
ID: 37738386
One other piece of information I can add when trying to reconnect to the host's it gives me the same error if I use an incorrect password, like it's not even getting to the authenication point
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LVL 119
ID: 37738403
Yes, Host is broke, we've seen this alot, and VMware still seem to have not fixed this issue, if storage changes, and cause the host to become non-reponsive.
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Author Comment

by:cclanton
ID: 37738425
Is there a resolution to this situation ?
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LVL 119
ID: 37738470
Reboot host, raise Support Request with VMware Support, and request a fix.

You are not the only site that has experienced this issue, it it is storage related.

No update or patch that we are aware of.
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Accepted Solution

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cclanton earned 0 total points
ID: 37773995
Switch issue seeing multiple macs ID's comming from the physical nics. turned port security off fixed problem
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Author Closing Comment

by:cclanton
ID: 37792754
Solution presented itself after reboot of entire system and differnt VM's were visible.
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Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

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