Re: Oracle Parallel Server

What are the advantages of a clustered file system over raw devices? I haven't had the opportunity to work with either.

I've been looking around the web for explanations/descriptions of clustered file system but can't find anything good. It seems veritas makes one. But is it a piece of software, hardware, or both. You mention compaq makes one also.

Is setting up and administering a RAC significantly harder than a single instance database.

I think I'm struggling because I don't understand the pieces and how they fit together. Would someone care to describe how the whole thing is put together?

Thanks
Jay

"Pete Sharman" <peter.sharman_at_oracle.com> wrote in message news:agiv0l0125p_at_drn.newsguy.com...
> In article <agijfd$j3j$1_at_bob.news.rcn.net>, "Jay says...
> >
> >Hi,
> >
> >My client may want to implement parallel server. They are (sorta) an HP
> >shop. But Oracle has been promoting RACs on Linux as a very cost
effective
> >solution. Anyone ever implement upon Linux, Pros/Cons? Other platforms
> >Pros/Cons?
> >
> >Thanks
> >Jay
> >
> >
>
> And so it is. One of the real benefits of the Linux configs is that there
are
> certified configurations that you can use "out of the box". Depending on
what
> vendor you buy them from, you can either plug in the cluster and RAC is
already
> preloaded, or part of the purchase cost may include the time of a
consultant
> (not necessarily an Oracle one) to install and configure RAC. About the
only
> con I can think of is that Linux hasn't had the long history of supporting
> clustering in the way some other Unix platforms have.
>
> If you need to install everything yourself, then I think Compaq is a good
choice
> (note this is purely a personal thing, not an Oracle recommendation)
because it
> has a clustered file system. Sun does too, but it's not supported for the
> database files (performance isn't good enough), and I know other vendors
have
> been working on them for a while, but remember Compaq bought Digital which
of
> course had clusters centuries ago (in computing time anyway). It will be
> interesting to see how HP uses the Compaq/Digital technology in this area.
>
> Having said that, I haven't really heard anything against any of the other
major
> Unix players. HP-UX and AIX both work perfectly well with RAC too. You
could
> even investigate VMS, though it tends to lag release timeframes compared
to Unix
> environments.
>
> Win2K I can't say too much about, because it's not something I've had a
lot of
> experience with in the clustered environment. I'm still not convinced
it's as
> robust as Linux, Unix or VMS, anyway.
>
> HTH. Additions and corrections welcome.
>
> Pete
>
> SELECT standard_disclaimer, witty_remark FROM company_requirements;
>
Received on Thu Jul 11 2002 - 08:19:25 CDT