What needed to be done extra was to set BIOS for the HA to enabled.
Everything works fine with just imaging the internal discs to the SAN and then made the changes to the BIOS and HA to boot from SAN.
I tried the same exercise on a HP Blade 465c with Windows 2003 R2 x64 (hooked to a HP EVA). Mirrored the local hard drives with a SAN volume via Windows Mirroring and then set the BIOS settings (for system and HBA) but it doesn’t boot. After the BIOS check, the system hangs with the following error :
Attempting to Boot from Hard Drive (c:)
A disk read error occurred.
Press Ctrl+Alt+Del to restart
Any advice would be greatly appreciated.