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

In article <bnlevm$f93$1$8302bc10_at_news.demon.co.uk>, Jonathan Lewis wrote:

> Remember, too, that if you are using a Symmetrix,
> you may have no idea whatsoever about the other
> I/O that is hitting the same discs at the same time.

If that's the case, you should RTFM. In this case, a nice place to start would be 'man symstat'.

> James Morle has written a paper entitled Sane SAN
> that discusses the issues of black boxes like the
> Symmetrix.

It's not a black box at all. It *is* another virtualization layer, and you *should* make sure you have the knowledge required to take full advantage of these high-end storage systems.

-- 
Jurjen Oskam

PGP Key available at http://www.stupendous.org/