The HP NC-Series Broadcom iSCSI boot feature allows a server to boot from a remote disk (known as the iSCSI target) on a Storage Area Network (SAN) without having to directly attach a boot disk.
Booting from a remote disk on a SAN allows the boot process to be centralized and consolidates equipment resources.
iSCSI boot allows a Linux system with a standup, mezzanine, or embedded HP ProLiant Gigabit Ethernet Multifunction server adapter to start up from a remote storage device. All iSCSI commands are handled by the Linux operating system.
The following diagram depicts an iSCSI boot implementation.