Newly upgraded ESX to ESXi missing couple of VMFS datastore ?

Hi People,

I have just successfully upgraded the ESX 4.1 into ESXi 5.1u1 using the .ISO image to perform Forced migration with the Preserve LUN option.

However,to my surprise, I couldn't find some of the presented LUNs that are supposed to be presented on this one particular host ?

Before it was upgraded everything is presented successfully to the ESX host, but now some of them are missing. During the host upgrade and also after the upgrade, the reboot is taking ages (more than 5 hours to successfully running due to the number of LUNs presented to each host is around 13-20 with some of them have been removed as well).

because of this issue, I'm not confident to perform the manual ESX to ESXi upgrade in my production environment with Vmware Update manager for all of my remaining ESX hosts to ESXi ( I got 47 remaining with).
LVL 9
Senior IT System EngineerIT ProfessionalAsked:
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Steven HarrisPresidentCommented:
Have you noticed any errors in the vmkernel.log?

Take a look at the following articles, which may help you out:

VMware KB (2013844)

VMWare KB (1016222)

kb.vmware.com is your best resource for these odd encounters.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
if you are using iSCSI, check that the iSCSI Initiator IQN has not changed, and check your Access and Mapping of LUNs on the SAN, and the correct iSCSI Initiator IQN is in place for the mapping.

We always normally upgrade all our clients ESX servers to ESXi manually. In fact we do not upgrade, we actually complete a new installation, using the same configuration, e.g. IP Address, vSwitches etc
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Senior IT System EngineerIT ProfessionalAuthor Commented:
Hi HancockA, how to get the VMkernel.log ?

The data store are all FC-SAN no iSCSI
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
/var/log
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Senior IT System EngineerIT ProfessionalAuthor Commented:
can I access it from the browser from the following location ?

Index of esxconsole-4a3c27a6-dce7-53b8-b2ff-0026554cfbea/logs on datastore ESX1-PROD03:Storage1 in datacenter ha-datacenter
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
you need to login via the console or remotely via ssh.
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