Modern OS's also don't know things like drive geometry. Good caching
disk controllers do a better job of optimizing disk I/O. We've always
seen major improvements in disk I/O with DPT caching controllers over
just adding RAM to Linux. The OS has less 'dirty' buffers to track and
worry about as well.
> If you're not going to stripe multiple volumes, why do you need a RAID
> controller? Any decent OS these days with a UBC will cache as much data
> as possible, so I would not expect too much more performance from a single
> drive, and a modern OS.
>
> FreeBSD with softupdates would probably work just peachy, with 98% of the
> performance, and less cost.
>
> On Tue, 3 Aug 1999, Cris Daniluk wrote:
>
> > Thank you for all the invaluable input. Personally I have a great deal of
> > Linux/freebsd/qmail experience, though my qmail knowledge is quite limited
> > to the extent of volume email such as this. Linux I think is the forerunner
> > because I will not be dealing with the project after it is setup and
> > therefore ease of administration is important.
> >
> > I have to throw in one more question, albeit somewhat off topic, it has
> > definite relevance. We're going to put in a raid controller with a hell of a
> > cache in it (64 mb probably). My question then is, what type of disk
> > configuration would you propose we need? Space needs are virtually
> > nonexistant, the machines sole purpose will be mail. Probably 100 mb for the
> > system itself and then the rest will be for the queue. I'd figure a raid
> > controller with 64mb cache and a 4.5 gb Cheetah would do the job. Do you
> > feel that striping and multiple drives would be valuable?
> >
> > Also, our pipe is not going to be a bottleneck--everything is set up on a
> > 100mbit lan with a T3 connection to the Internet. The t3 runs directy to
> > level3's backbone in DC which we are a few miles from, so there should be no
> > significant or relevant latency.
> >
> > Thanks again,
> >
> > Cris Daniluk
> >
> >
>
>
--
Richard Shetron [EMAIL PROTECTED] [EMAIL PROTECTED]
What is the Meaning of Life?
There is no meaning,
It's just a consequence of complex carbon based chemistry; don't worry about it
The Super 76, "Free Aspirin and Tender Sympathy", Las Vegas Strip.
