This is a Proliant BL 450c G7. I did an upgrade from ESXi 4.1 to ESXi 5.1 Update 1 via update manager.
When the boot process reaches 'vmw_vaaip_hds loaded successfully', it takes more than an hour to finish the boot process.
After the boot process is completed, everything seems fine.
If anyone has experienced this issue and knows of a resolution kindly share with me.
Thanks