Data Store not recognized

I have a new Dell server that was built with ESX 5.5 installed on the SD card.  The server has a PERC 310 controller with 2 RAID 1 sets configured.  Each set is 2 disks.  When I get into the vSphere client I can only see a single data store.  What do I need to do to get it to see the second data store?

Also, I can add the host to a vSphere client alone but if I try to add it to vCenter is shows that it is disconnected.
NytroZAsked:
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gheistCommented:
There is no ESX 5.5
There is ESXi 5.5 and ESXi 5.5 with dell customisations.
Which one you use?
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NytroZAuthor Commented:
ESXi 5.5 from Dell
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RantCanSr. Systems AdministratorCommented:
Are you getting any error messages?

Does the datastore have existing data?  Can you see the datastore on the client, but not in vCenter? Do I have that right?

Here is a vmware article about adding datastores to hosts within vcenter/vsphere.

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2037192
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NytroZAuthor Commented:
I have ESXi 5.5 and vCenter 5.1.  I'm thinking it may not be compatable and would like to downgrade to ESX 5.1 like the rest of the servers.  Would it be easiest to simply re-install since their are no vm's installed yet?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Have you actually prepared the new datastore, by clicking Add Datastore and follow the wizard?

Only the first datastore (LUN) is prepared  by the ESXi installer.
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NytroZAuthor Commented:
this is the error I receive when I try to add the storage.

Call "HostStorageSystem.ComputeDiskPartitionInfo" for object "storageSystem" on ESXi "esx2" failed.
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RantCanSr. Systems AdministratorCommented:
If you have an entitlement, defo upgrade to vCenter 5.5 and begin upgrading your hosts. vCenter 5.1 doesn't fit ESXi 5.5.  If you have shared storage and no custom .vibs on your 5.1 hosts, it should be painless.
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RantCanSr. Systems AdministratorCommented:
Try to format the Datastore as VMFS 3 and see if it creates it, you can always upgrade it to 5 once it is created. How large is it?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You CANNOT manage ESXi 5.5 with vCenter 5.1 it's not compatible.

Insert the CDROM, Boot follow the installer and upgrade, or follow my EE Article here

http://www.experts-exchange.com/Software/VMWare/A_12378-HOW-TO-Upgrade-from-VMware-vSphere-Hypervisor-ESXi-5-1-to-VMware-vSphere-Hypervisor-ESXi-5-5-for-FREE.html
Normally those errors are caused by an existing partition on the disks.

Are these new or old disks, you can check and delete partitions using

partedutil

see here

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1036609

You could try connecting direct to the Host with vSphere Client and Try and Add Storage.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
@torszula did Adding a datastore of VMFS-3 fix this for you, with no error ?
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