Multi attach sanboot AoE, is that possible?

[robinsmidsrod]

No, you don't need to do anything with your iPXE configuration to make this work. You'll need to put something in your boot-up scripts in WinXP that instructs the AoE driver in WinXP to connect the other drive during bootup. You'll need to use autostart.cmd or whatever "autoexec.bat" is called for WinXP (can't really remember). If you're using sanbootconf and the AoE driver in there, look at the cmdline utilities and how they operate.

Also, iPXE only supports one device in the iBFT, so you wouldn't be able to make it work without programming skills.