One method (amongst many) of stopping your SAN from being “touched” by Anaconda installer is to remove the drivers...
By submitting your personal information, you agree that TechTarget and its partners may contact you regarding relevant content, products and special offers.
that Anaconda uses for HBAs. Dinny Davies wrote an article about this on the xtravirt.com website.
Bouke Groenescheij has taken this idea to the next logical conclusion by writing a script that does it all for you.