Re: SAME methodology opinions?

"Tanel Poder" <tanel@@peldik.com> wrote in message news:<3e6d16b4$1_2_at_news.estpak.ee>...
> Hi!
>
> Seems that you are a novice salesman at Hitachi?
>
> > Most SAN now-a-days has very large NVRAM. I think a
> > Hitachi 9980 can have 32 GB of NVRAM (thats mirrored).
> > Everything you write goes to the cache. At that point, it
> > really does not matter where you put your redo.
> [snip]
> > have a very bad IO wait. This is especially prominant on an
> > EMC.
>
> Definitely a Hitachi salesman.
>
> > My personal belief is the technology will eventually make
> > IO tuning less and less important, unless you have a very
> > extreme situation.
>
> The situation is getting more and more extreme. Every day.
>
> Tanel.

Tanel,

Except for your last comment which will become debatable, I disagree with your judgement. A friendly reminder: your message posted in this technical newsgroup may tarnish your professional image for a long time in your career.

FYI, Bass is on the performance and capacity team at eBay and as far as I know is not a spare-time salesman for either Hitachi or IBM. He could've simply answered my question by saying, I think, "NVRAM is commonly known as write cache in SANS", which I didn't realize when I asked. But his summary is still a good one and worth reading.

Yong Huang Received on Mon Mar 10 2003 - 23:19:56 CST