Re: OFA Architecture with RAID

No, you really only need one mount point, as the RAID devce will pull *all* the mount points onto one disk set anyway (as long as you created them all on the same RAID 5 set). If my whole system was on a RAID5 array (which may be a bad idea, but let's avoid that issue here) then you only have one file system mount point. Just create multiple directories on it to hold separate copies of things like redo mirror and control files, so you don't loose the lot if some hits delete in the a bad directory.

Steve Phelan

(Oracle 7 & 8 OCP)

gremlin wrote:

> Do you still need multiple (4?) mount points if your file system is on a
> raid? Doesn't that take care of the thing you are trying to prevent
> automatically?
>
> Mike
>
> Steve Phelan wrote:
>
> > OFA deals with having enough mount points to save you from a single drive
> > failure. It doesn't include any RAID (or non-RAID) fault tolerant
> > features. In other words, you don't have to follow OFA to the letter as
> > you can build in some of it's features using your hardware.
> >
> > As regards which bits to put where, you'll really have to look at the
> > uptime/recover-time you want plus the read/write performance of each part
> > of your database you expect. None of this can be answered without a very
> > good knowledge of your system.
> >
> > Read up on Oracle before you jump in on this, and get some consultancy.
> >
> > Steve Phelan
> >
> > (Oracle 7 & 8 OCP)
> >
> > Scott Patterson wrote:
> >
> > > I was wondering if anyone out there had any insights or suggestions on
> > > how to configure a 7 disk compaq box running windows nt and Oracle
> > > 8.05. I have read about the OFA architecture and wish to be compliant
> > > along those parameters, but I am a bit confused how to also take
> > > advantage of RAID technologies as well. I will have the ability to mix
> > > and match different RAID levels along the 7 drives, however Im not
> > > sure what OFA tablespaces should be say RAID1 and which should be
> > > RAID5 or whatever other RAID levels should be considered. I generally
> > > will be following the default tablespace schemas of the OFA
> > > architecture.
> > >
> > > I would appreciate any insights on this subject,
> > >
> > > thanks Scott
>
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Received on Tue Feb 23 1999 - 13:52:44 CST