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Re: 64 bit or 32 bit

From: Yasaswi Pulavarti <yasaswi_at_encfor.com>
Date: 30 Nov 2004 03:06:19 -0800
Message-ID: <aa862233.0411300306.27f837af@posting.google.com>


Hi Fabrizio:
Thank you for your reply. For option 2 you also mean EM64T Xeon processors and not just AMD64 right?
Also when you say AMD64, which Opteron model are you using? 200 or 250? Please inform. I need to make a hardware decision as well for running Oracle 10g.
Thanks,
Yasaswi

Fabrizio <fabrizio.magni_at_mycontinent.com> wrote in message news:<41AB87D6.3050000_at_mycontinent.com>...
> Yasaswi Pulavarti wrote:
> > How can I verify if Oracle 10g running on RHEL 3 AS is running on 64
> > bit mode or 32 bit mode?
> > Also the x86-64 installation guide does not not talk about
> > "runInstaller" asking if the DBA wants 64 bit Oracle 10g installed or
> > 32 bit Oracle 10g installed. How can I specify which bit version to
> > install?
> > Please help.
> > Thanks,
> > Yasaswi
>
> For linux there are three different versions of oracle 10g (all in
> different CD packs):
>
> 1. for x86 (for example xeon)
> 2. for x86-64 (AMD64 and EM64T)
> 3. for itanium.
>
> You can install 1 on 32 bit processors and opteron, 2 only on AMD64 and
> 3 only on itanium.
>
> If the database is already installed just connect with sqlplus. If it is
> a 64 bit version it is explicitly stated. Otherwise it is a 32 bit version.
> Another way is to check the libraries with the command "file".
>
> From your previous post I believe you are trying to guess what kind of
> processor to use for your future systems.
>
> I find the AMD64 extremely fast but I haven't made enought test yet on
> itanium II for making comparisons.
> Drawback for oracle x86-64, so far, is the support. Oracle is not
> spending too many efforts on that system. Few patches... and releases
> late by months.
>
> However I like this architecture a lot.
> (By the way: in my test RAC 10g x86-64 is still not working).
>
> Regards
Received on Tue Nov 30 2004 - 05:06:19 CST

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