On Thu, 6 Sep 2007, Clooney, David wrote:

> Hi All
>
>
>
> Is there any chance someone could clarify MPX for me.
>
>
>
> If you have MPX set to 4 for example and there are 4 streams hitting the
> drive. All 4 streams are writing in parallel as the tape spins. And if 3
> streams are writing at 15mb/sec and 1 stream is writing at 10mb/sec,
> would the slower of the streams be a bottle neck for the other 3. My
> lack of the tape technology is most probably to blame, I am thinking of
> each stream the way fragments work on a tape , finish 1 start the next ,
> please tell me this is not the same on each stream.
>

That is a good question, but I don't think so(?) I think the 3 streams a
15MB/s continue to truck along and the 10MB/s stream writes at 10MB/s
but its more stretched out, example:

15MB/s stream:
# # # # # # # # # # # # # # # #

10MB/s stream:
#   #   #   #   #   #   #   #   #

Justin.

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