Purpose of OptionROM?

hotzen

Limp Gawd
Joined
Jan 29, 2011
Messages
349
What do I lose/gain if I disable/enable the OptionROM of an HBA like the M1015?
Are there differences between IR and IT regarding the ROM?
Would you flash to IT with or without OptionROM?
Thank you very much
 
Depending on your OS/System.

I use ESXi 5, without the OPROM ESXi can see the controllers, but they fail to be used on the guest OS.

With the OPROM, all is fine.
 
Normally it just means you can't boot from it.

But sometimes it has to be enabled for the driver to use it also, but this is normally not the case.
 
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