This has been an excellent thread, thanks very much to all of you who have provided both the challenging questions and the answers. It deserves a bump to the top again.
While data protection has been discussed thoroughly, and there is some important knowledge regarding disk pooling, I wonder what the benefits of pooling are outside of protection from running out of space. It would seem to me that at least two drives would be involved anytime an IO request is initiated, which is not necessarily desired. I'm sure I am missing something.
I was of the same mindset as Dark_Slayer - I'm just too stubborn about file management to give into the possibility of someday flexraid going away and having files all over the place. But I've gotten over it, especially if pooling provides some performance or environmental benefit. Otherwise I may just purchase raid on its own and forego pooling.
Thank you in advance.