I am trying to figure out what stripe size and also allocation size I should use for my RAID 5 setup. we got (6) 2 TB drives in a RAID 5, cost was the biggest factor of all.
but I am confused on how to set up the stripe element size. I understand that in a RAID 5 you will take away one drive for parity then multiply the rest of the disks with the element size to get the stripe size. correct? so in my case, it would be 5 x 128 KB = 640 KB.
So now how do I choose an appropriate allocation size when I format my volume for the best performance? this is where I am unclear, I hear it is best to use something divisible.
anything you can help clear up would be much appreciated thanks!