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EMC won't add ESXi Hosts

Posted on 2014-12-16
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We bought 3 of the same servers and put esxi 5.5 on each one, but when we we try to add them to our SAN via EMC Unisphere we can only add one of the three.  Its like EMC is seeing all three as the same machine and when we try to add a second host to EMC it finds the host but is greyed out and won't let us add it.  We are using different IP addresses, and host names.  We are at our wits end on this one...EMC is updated to the latest version as well.
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Question by:Enhancedpanda
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by:gheist
ID: 40504232
Would be nice if you share if you use FC or iSCSI or NFS storage.
Can you add storage via vmware if emc tool is so bad?
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Author Comment

by:Enhancedpanda
ID: 40505887
we are using iSCSI but we can't get to that point, we are just trying to add the Esx host to the EMC to give permission to access the datastores on the san.  We are trying to connect our ESX servers to the datastores on our SAN, so we first need to connect the ESX host within EMC Unisphere to grant that host access to the datastore.  I guess this may be a unisphere question not so much a VMWare because ultimately we need to know how unisphere differentiates its vmware hosts.  I attached a screen shot of where we are getting stuck.
Untitled.jpg
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by:Carlos Ijalba
ID: 40508254
The ESX host that you can see through the EMC, is it a host?

Have you tried with the vCenter?, with the vCenter you should see the whole DC.
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by:Enhancedpanda
ID: 40509768
We were able to figure out that the EMC looks for the motherboards unique ID and the motherboards that are in the systems don't have a unique ID assigned to them so that is why the EMC is seeing them as all the same system.  We need to get in touch with the manufacturer of the motherboards to get a fix from them.
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by:gheist
ID: 40510008
Your first statement was that servers are identical. So how could they in the world have a unique ID?
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by:Enhancedpanda
ID: 40513466
Because all motherboards have a unique ID, all hardware has a unique ID for that matter.  The manufacturer is supposed to make sure of this, and when dealing with servers this is always the case.  But the boards we got aren't really used for servers normally so the manufacturer didn't input a unique ID on them.  We have contacted them about getting this resolved.  So just something to remember when building your own servers and using multiple of the same motherboards.
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by:Carlos Ijalba
ID: 40513807
It's not really worth building systems manually anymore, amongst other things, because little nuisances like this ones.
But you also won't get proper support, you don't have the HCL to build proper supported configurations, etc.

And this days you can buy cheap systems from Dell & Fujitsu, wich are excellent price/performance for VMware builds.
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by:gheist
ID: 40513889
Wrong assumption.Vcenter CAN distinguish between systems (And it is EMC product too) - why dont you ask EMC to well pull list of systems from other their product?
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by:gheist
ID: 40513892
And you can build fairly cheap systems for other FREE virtualisation solutions.
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Enhancedpanda earned 0 total points
ID: 40534603
the manufacturer of the motherboards sent us a bios flash utility that assign a guid and that fixed our issue.  We are now able to add all of the vm hosts to our EMC.
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by:gheist
ID: 40534625
No problem.
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Author Closing Comment

by:Enhancedpanda
ID: 40542864
Because it was the tested fix to our problem.
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