On Fri, 3 Mar 2000, Brian Pomerantz wrote:
>Unfortunately, the smallest stripe size I could get on the Mylex card
>is 8KB. [..]
So it's raid hardware. Ok.
> [..] I need to use at least an 8KB block size (to match
>the Alpha page size).[..]
Matching with the page size doesn't matter.
>I think the consensus here at LLNL is that for the scale that we are
>working with, a larger block size is better. [..]
For raid hardware it depends on the hardware, ok.
For raid software I am not convinced that's the case. The software doesn't
know about your 64k hardblocksize that you have in hardware. On a
contigous write you'll simply generate the same amount of data but 16
times more interleaved but your hardware can't notice the difference
between the different intereaving of the data that would get changing the
stripe size from 4k to 64k.
Andrea
