EMC QLogic Installation Guide download pdf (Page 111)

Boot-from-SAN configuration restrictions

109

Miscellaneous Planning and Procedures

Boot-from-SAN configuration restrictions

Refer to the EMC Support Matrix for any specific boot-from-SAN

restrictions. This guide no longer contains restriction information,

and the information in the EMC Support Matrix supersedes any

restriction references found in previous HBA installation guides.

Further informatin on booting Microsoft Windows from external

storage can be found in the EMC Host Connectivity Guide for Windows.

Benefits of booting from the storage array

Benefits of storage-based booting include:

◆ Faster replacement/addition of server capacity, enabled by

separation of the boot image from the server.

◆ Lower investment in internal server-based RAID cards with

limited capability.

◆ Leveraged investment in the storage network through the high

availability, data integrity, and storage management of an

external RAID storage system.

◆ Leveraged commodity high-density server technology and

centralized storage offered by diskless servers using

SAN-attached storage systems.

Booting from the EMC storage array works effectively with certain

SAN-based environments, including multiserver redundant

applications, Web farms, and terminal server applications where an

n+1 server environment protects customers against different types of

failures.

Some applications may not be optimized for storage array-based

booting. EMC strongly recommends customers fully investigate their

application and data availability requirements and consult with an

EMC account team to determine the configuration that best meets

their needs.

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EMC QLogic Installation Guide Page 111