Re: Storage basics for Oracle DBA

"DA Morgan" <damorgan_at_x.washington.edu> wrote in message news:1111990411.361572_at_yasure...
> bdbafh_at_gmail.com wrote:
>
> > His book covers much more than just storage ... "Scaling Oracle 8i" by
> > James Morle is downloadable from his website:
> >
> > http://www.scale-abilities.com/thebook.shtml
> >
> > Page 85 starts coverage of Storage Subsystems.
> > Parts are a little bit out of date, such as SCSI protocols (160 and 320
> > MB/sec have come along since this was published). NAS filers weren't
> > used back then and hard drive rotational speeds have increased to
> > 15,000 RPM.
> >
> > This is one of those books for which I picked up a second copy for home
> > use (like Practical Oracle Databases and Effective Oracle by Design).
> >
> > He also wrote a paper named "Sane SAN" that is more recent.
> >
> > Gaja Vatnahayanahaya's Oracle Performance Tuning 101 book was released
> > as an eBook by Veritas.
> > (Oracle Press, Gaja Krishna Vaidyanatha, Kirtikumar Deshpande)
> > http://www.veritas.com/Vrt/offer?_requestid=78308&a_id=3338&
> >
> > http://www.storagemagazine.com has some content that you may find
> > helpful (registration required for some articles).
> >
> > hth.
> > -bdbafh
>
> On the subject of storage it is time to call something a myth: That you
> should not use RAID 5 for applications that perform heavy writes.
>
> That statement may well be true for most storage arrays but I am now
> aware of one on which RAID 5 writes faster than RAID 1+0.
>
> So the answer, from now on, is "it depends on your hardware vendor."
> --
> Daniel A. Morgan
> University of Washington
> damorgan_at_x.washington.edu
> (replace 'x' with 'u' to respond)
>

I concur, and I'm glad (and kinda relieved) to hear *you* say it. Our System Architects demonstrated this on one of our large systems. We have to keep an eye on technology advances.

Shabble. Received on Mon Mar 28 2005 - 02:57:31 CST