[[!comment format=mdwn
 username="http://joey.kitenet.net/"
 nickname="joey"
 subject="comment 1"
 date="2011-02-25T19:12:42Z"
 content="""
I'd expect the checksumming to be disk bound, not CPU bound, on most systems.

I suggest you start off on the WORM backend, and then you can run a job later to [[migrate|walkthrough#index14h2]] to the SHA1 backend.
"""]]