Re: How fast should an IO be on a SYMMETRIX?

Jonathan,

Sorry about that -- my mistake. I mis-placed the decimal point.

The Symmetrics timing is OK ( < 10 ms).

Rgds.

"Jonathan Lewis" <jonathan_at_jlcomp.demon.co.uk> wrote in message news:bnm13c$lnd$1$8300dec7_at_news.demon.co.uk...
>
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>
> Jonathan Lewis
> http://www.jlcomp.demon.co.uk
>
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> "VC" <boston103_at_hotmail.com> wrote in message
> news:nrsnb.49322$e01.126151_at_attbi_s02...
> > Hello Jonathan,
> >
> > You are quite right about 10ms being a reasonable number. The
> original
> > poster's timing, however, is closer to 100 ms and that's not an
> indication
> > of his Symmetrix good health.
> >
>
> The numbers I picked out were from the tkprof summary:
> 254 disk reads in 2.50 elapsed seconds
> which is 100 reads per second
> which is 10ms per read
>
> It's easy to slip a decimal place with some of the numbers
> that get dumped, especially when a few of them are given
> in milliseconds anyway, but I think I got it right on this one.
>
>
>
Received on Tue Oct 28 2003 - 09:22:08 CST