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Chapter 18. Boot from SAN
Storage area network (SAN) boot is a technique that allows servers to use an operating
system (OS) image that is installed on external SAN-based storage to boot. The term
SAN
booting
means the use of a SAN-attached disk, such as a logical unit number (LUN), as a
boot device for a SAN host.
Fibre Channel SAN booting does not require support for special SCSI operations. It is no
different from any other SCSI disk operation. The host bus adapter (HBA) communicates with
the system BIOS, which enables the host to boot from a LUN on the storage system.
This chapter describes the process to set up a Fibre Channel Protocol (FCP) SAN boot for
your server. This process uses a LUN from an FCP SAN-attached N series storage system. It
explains the concept of SAN boot and general prerequisites for using this technique.
Implementations on the following operating systems are described:
Windows 2003 Enterprise for System x Servers
Windows 2008 Enterprise Server for System x Servers
System x Servers with Red Hat Enterprise Linux 5.2
This chapter includes the following sections:
Overview
Configuring SAN boot for IBM System x servers
Boot from SAN and other protocols
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