Boot From San; Bfs Rules And Assumptions; Why Boot From San - HP Integrity BL890c - i2 Server Software Manual

1 Boot from SAN

This chapter describes boot setup procedures from a storage area network (SAN) with the required
software and hardware using HP Emulex HBAs or HP QLogic HBAs running on Itanium or Proliant
Windows systems. For the latest version of this document, see the HP storage website:
http://h18006.www1.hp.com/storage/networking/index.html
Traditionally, HP servers boot operating systems from internal SCSI or IDE storage devices. With the
support of external booting from HP StorageWorks HBAs and RAID arrays, you have the option to
eliminate server-based internal boot devices. Booting from an external device decreases downtime
through faster server replacement in the event of a server or HBA failure.
IMPORTANT:
For important troubleshooting information, see

BFS Rules and Assumptions

Make sure that the following rules and assumptions are met before you begin.
• All rules and assumptions in the
isfied.
• One available path from HBA to storage LUN.
• In addition to this guide, see the following documentation:
• Release notes for HP StorageWorks Emulex host bus adapters for Windows.
• Release notes for HP StorageWorks QLogic host bus adapters for Windows.
• Whitepapers and best-practices documents.
To install Windows on a Boot from SAN LUN with driver versions that are not supported by the initial
operating system release, the new driver must be integrated as part of the installation process using
a BFS kit.

Why boot from SAN?

Booting from SAN provides:
• Improved disaster recovery
• Reduced backup time when the boot path is through a SAN
• Additional SAN-managed features
3 Troubleshooting.
About this guide chapter, as well as this chapter, have been sat-
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