Network Bios Support; Pxe Boot; Iscsi Boot; Http Boot - Hitachi DS240 Service Manual

BIOS N BIOS S
ETWORK UPPORT

Network BIOS Support

PXE Boot

The PXE implementation on this platform is compliant with UEFI Specification 2.5, Section
21 Network Protocols - SNP, PXE and BIS. To utilize this, the user must load EFI Simple Net-
work Protocol driver and the UNDI driver specific for the network interface card being
used. The UNDI driver should be included with the network interface card. The Simple
Network Protocol driver can be obtained from http://developer.intel.com/technology/
framework.
The BIOS supports legacy PXE option ROMs in legacy mode and includes the necessary
PXE ROMs in the BIOS image for the onboard controllers. The legacy PXE ROM is required
to boot a non-EFI operating system over the network.

iSCSI Boot

The BIOS supports Internet Small Computer System Interface, an Internet Protocol (IP)-
based storage networking standard for linking data storage facilities. By carrying SCSI
commands over IP networks, iSCSI is used to facilitate data transfers over intranets and to
manage storage over long distances.
iSCSI can be used to transmit data over local area networks (LANs), wide area networks
(WANs), or the internet and can enable location-independent data storage and retrieval.
The protocol allows clients (initiators) to send SCSI commands to SCSI storage devices (tar-
gets) on remote servers.

HTTP Boot

The HTTP Boot implementation on this platform is compliant with UEFI Specification 2.5,
Section 23.7 HTTP Boot. To utilize this, the user must select the right LAN device from BIOS
setup menu (refer to Figure 2-61) because HTTP boot has different "Architectural Types" to
distinguish from PXE. With this Architectural Types, this LAN device can send the right
DHCP options to DHCP server then server will respond with DHCPOFFER that includes the
boot file HTTP URI for the requested processor architecture. After resolving URI server
name from DNS, the Network Boot Program (NBP) will be downloaded from HTTP server
via IPV6 or IPV4 HTTP protocol.HTTP boot addresses PXE issues: HTTPs addresses security,
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