yeah that might be the right answer, but you would get it wrong on the OCP... assuming the books are right.
>
> From: Peter Gram <peter.gram_at_miracleas.dk>
> Date: 2003/07/30 Wed PM 04:09:28 EDT
> To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> Subject: Re: 9i-OCP Question
>
> Hi
>
> I don't want to create a fight, but in a configuration with 2 groups and
> 4 members you need 8 disks :
>
> 1 disk for every member.
>
> When the db is writing to one group the archiver will be reading from
> the other group, by the
> why since there are multibe members in the group the db (archiver) will
> read 64 Kb chunks
> from the each member and there by distribute the IO
>
>
> That's my 2 cent's of knowledge, comment and correction are welcome :-)
>
> Mladen Gogala wrote:
>
> > There are two reasons:
> > 1) Redo log groups are never used simultaneously, so they can reside on
> > the same disk. Log members should not be on the same disks for
> > increased
> > survivability. That gives us 2 groups with 4 members, each two members
> > sharing the same device - 4 disks alltogether.
> > 2) It's because I say so and I'm an 8i OCP.
> >
> >
> > On 2003.07.30 13:44, KENNETH JANUSZ wrote:
> >
> >> Why? What is the logic?
> >>
> >> Ken Janusz, CPIM
> >>
> >> ----- Original Message -----
> >> To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> >> Sent: Wednesday, July 30, 2003 12:29 PM
> >>
> >>
> >> > The answer is 4. Of course, no one in the right mind would have
> >> > 2 groups with 4 members each.
> >> >
> >> > On 2003.07.30 13:19, Senthil Kumar wrote:
> >> > > Hi all,
> >> > >
> >> > > What is the correct answer for this?
> >> > >
> >> > > Q> If you have 2 redo log groups with 4 members each, how many disks
> >> does
> >> > > Oracle recommend
> >> > > to keep the redo log files?
> >> > >
> >> > > 1. 8
> >> > > 2. 2
> >> > > 3. 1
> >> > > 4. 4
> >> > >
> >> > > Which is the correct answer.
> >> > >
> >> > > TIA
> >> > > Senthil
> >> > >
> >> > > --
> >> > > Please see the official ORACLE-L FAQ: http://www.orafaq.net
> >> > > --
> >> > > Author: Senthil Kumar
> >> > > INET: senthilkumard_at_summitworks.com
> >> > >
> >> > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com
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> >> >
> >> > --
> >> > Mladen Gogala
> >> > Oracle DBA
> >> > --
> >> > Please see the official ORACLE-L FAQ: http://www.orafaq.net
> >> > --
> >> > Author: Mladen Gogala
> >> > INET: mgogala_at_adelphia.net
> >> >
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> >> --
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> >> Author: KENNETH JANUSZ
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> >>
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>
> --
> Peter Gram, Miracle A/S
> Phone : +45 2527 7107, Fax : +45 4466 8856, Home +45 3874 5696
> mail : peter.gram@MiracleAS.dk - http://MiracleAS.dk
>
>
>
> --
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> Author: Peter Gram
> INET: peter.gram_at_miracleas.dk
>
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Received on Wed Jul 30 2003 - 15:39:30 CDT
