Block size for large filesystems

[Kevin O'Gorman]

I've been using gparted for creating and managing filesystems for so long I
didn't really think about it too much.  But now that I'm fooling around
with RAID, I've bumped into soemthing I maybe should have been paying
attention to all along.

It's the block size.  Gparted does not seem to have an option to set the
block size when it formats a new partition.  It just used 512B blocks.  I'm
seeing recommendations for 4 KB blocks on large filesystems, and most of
mine are 32GB, and I have two that are 7TB and 11TB RAID arrays
respectively.

Does anybody know how much of a difference this makes?  I'd be interested
in what anyone has found.

-- 
Kevin O'Gorman
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