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I have 3 blades configured with ESX, on one of this blades I am unable to get ESX to connect to a NAS data store, I get the error:

NFS Error: unable to Mount filesystem: Unable to connect to NFS server

The strange thing here is that the other 2 blades can connect to this NAS, also this blade can connect to another NAS (used for backup) which is on the same switch, going through the same VMKernal port and NIC.

Any ideas?

The NAS is an IOMEGA StoreCenter Pro

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Just to double-check: The backup-NAS that you connect to fine is on the same IP subnet as the NAS you can't connect to? –  pauska Feb 19 '10 at 12:50
    
Also, try to use ping and vmkping to make sure that you have network connectivity (that no firewalls are blocking you) –  pauska Feb 19 '10 at 12:52
    
Can you do a brain-dump for me of everything please (blade make/model/interconnects/adapters, exact esx version, network setup, NAS details - everything basically). –  Chopper3 Feb 19 '10 at 13:24
    
@ErikP Yep, backup NAS is on the same subnet, have done a ping and vmkping and both get a reply. @Chopper, I will get that added for you shortly. –  Sam Feb 19 '10 at 13:37
    
Sam, there's a firmware update (2.0.11.42072) that says it fixes NFS issues, no details and there's a more recent update but I'd rather you know sooner rather than later. –  Chopper3 Feb 19 '10 at 13:44

1 Answer 1

up vote 3 down vote accepted

Ok, its working now. The problem was that the NAS could not resolve the ESX blade by name. Why this was an issue i'm not sure as, we were connecting by IP, and the other blades worked ok, but hey its working now.

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Excellent work, Great Job! –  Chopper3 Feb 19 '10 at 22:31
    
Very useful to know, it's not the sort of thing you'd expect to be an issue. –  Helvick Feb 21 '10 at 23:57

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