CentOS 6.4 & Adaptec 7Q Series Drivers - integrated or not?

Question

linux

I can’t find an answer to the question:
On the Adaptec website there are diskette images of drivers for the controller, it is written how to load them when installing the OS.
But I tried to install CentOS 6.4 without a driver disk and everything was fine, the disks were seen.

Question:
1) Does this mean that the driver disk is not needed?
2) There is a suspicion that the built-in drivers can only work for compatibility, but will not be able to provide the performance that native drivers from the Adaptec website provide. Built-in drivers can't work slower than original ones?

Bottom line: Even if CentOS sees the device, is it worth loading drivers on top?

Answer 1

There, in any case, drivers from the device manufacturer, centos will not write their own, in centos, that is, drivers for almost all production raid controllers.

Answer 2

If everything works, it's better to leave the built-in ones in the kernel.