Which of the following two requirements are necessary when configuring the HBA in the ESX Host (Choose Two)?

An administrator is installing an ESX Host to boot from a SAN LUN. Which of the following two requirements are necessary when configuring the HBA in the ESX Host (Choose Two)?

A.
The HBA BIOS must be enabled

B.
The HBA must be plugged into the lowest available PCI bus and slot number

C.
The HBA BIOS must be disabled

D.
The HBA must be plugged into the highest available PCI bus and slot number

Explanation:
VMware ESX Server SAN Configuration Guide, page 61.
ESX Server Configuration Requirements for Booting from SAN The HBA BIOS for your QLogic HBA Fibre Channel card must be enabled and correctly configured to access the boot LUN.
The booting logical unit number (LUN) must be visible from the lowest numbered HBA that has any visible LUNs.
The boot LUN must be visible from the lowest numbered storage processor (attached to that HBA) that has any visible LUNs.
The boot LUN must be the lowest numbered LUN attached to that storage processor (except for gatekeeper LUNs which are sometimes assigned LUN0).
You must remove all internal SCSI drives for all servers. HBA numbers can change automatically when you add and remove PCI adapters, or manually when you edit the /etc/vmware/devnames.conf file. The HBA must be set to the lowest PCI bus and slot number. This enables it to be detected very quickly since the drivers scan the HBAs in ascending PCI bus and slot numbers, regardless of the associated virtual machine HBA number. If you are running an IBM eServer BladeCenter and boot from SAN, you must disable IDE drives on the blades.


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