Slow ESXi boot process vmw_vaaip_cx

Hi Folks,

Can anyone please shed some light in the slow ESXi boot process which seems to be stuck for long hours in vmw_vaaip_cx steps ?

From the ESXi configurations, I can say that there are around 80+ LUNs presented to each every hosts ranging from VMFS datastore and Physical RDM, see the screenshot below for the status:

Any kind of help and assistance would b e greatly appreciated.

Thanks.
SlowScanLUN.jpg
LVL 9
Senior IT System EngineerIT ProfessionalAsked:
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Senior IT System EngineerIT ProfessionalAuthor Commented:
I cannot do the steps suggested in: http://www.vnotebook.ca/2013/02/vmware-esxi-host-slow-boot-times.html

to type in

esxcli storage core device setconfig -d <naa.id> --perennially-reserved=true

because it happens on the upgrade process from ESXi 4.1 to ESXi 5.1Update 1, so we're not on ESXi 5.1 yet.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You are correct this is todo with connection to the SAN.

What is the SAN?

and you may need to apply SAN vendor vibs or configuration.
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Senior IT System EngineerIT ProfessionalAuthor Commented:
My SAN array is EMC CX4 and VNX5 series.

How is that possible for the setting to take effects while the ESXi 4.1 host is being upgraded to ESXi 5.1 ?
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Senior IT System EngineerIT ProfessionalAuthor Commented:
So I guess, that there is no way to accelerate the ESXi server with plenty Physical RDM assign to it :-/ ?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Remove the connections from the server.

Raise a support issue with EMC.
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