Dan Farrell wrote:
in reality, though, I think the best performance would probaby involve
just using the fast drive. RAID introduces too much overhead to make
up for itself in this situation I think.
I'm betting the act of seeking across the platters on the fast drive for
two separate partitions on the disk makes performance truly awful. The
idea of separate stripe sizes in the original post makes sense for
shifting more I/O to drive A, the fast one, without causing weird things
to happen on the physical disc that the software can't optimize for.
However I think messing with stripe sizes is not something Linux
software raid (or any hardware raid I've dealt with) supports.
kashani
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