Well you asked for this. Don't read this if you are faint
of heart and weak of mind.
Oracle9i Real Application Clusters is the next
evolutionary step up from Oracle Parallel Server, and is
the result of more than 6 years of development, 9
patents, and 18 additional patents pending. Oracle9i Real
Application Clusters are unique in that they provide:
Out-of-the-box, near-linear scaling transparency
Compatibility with all applications, with no redesign
required
Fast growth clusters, the ability to rapidly add nodes
and disk
Based on Oracle's Cache Fusion architecture, Oracle9i
Real Application Clusters provide transparent application
scalability by quickly and efficiently sharing frequently
accessed data across all the servers in a cluster,
resolving all manners of contention between servers in
the process.
In the Cache Fusion architecture, read requests may be
served by any of the memory caches in the cluster
database. In cases where data is being updated,
coordination between the caches of each server becomes
necessary so that both the data being read and the data
being updated are consistent and correct.
If the query request is served by a remote cache, then
the block is transferred across the high speed cluster
interconnect from one node's cache to another. This
"fusing of the caches" happens automatically and is
transparent to the application. This transparency is the
key technology that provides the fast, efficient scaling
of Oracle9i Real Application Clusters.
I warned ya,
Scott
> >[via Oracle-L digest]
> > From: "Don Granaman" <[EMAIL PROTECTED]>
> > Date: Wed, 25 Jul 2001 22:29:47 -0500
> > Subject: Re: (Fwd) Re: Oracle 8i and clustering
> >
> > I don't know exactly the context in which you heard this (NT
> > cluster specific?),
>
> Don,
>
> Probably just my bad paraphrase of a dim recollection of a
> fast/careless read of previous comments on the list.
>
> Can you give a brief explanation of what will be new/changed
> in RAC, and what it means?
>
> thanks,
> ep
>
>
> >...but rest assured that OPS is not going to be
> > "replaced", except in name. The current party line is that "real
> > application clusters" is a radical departure from OPS. It simply
> > isn't true. RAC is a very major upgrade/rewrite and renaming of
> > OPS, not a different technology. There seems to be a *LOT* of
> > misinformation floating around on this issue and much of it seems
> > be coming from Oracle's marketing machine.
> >
> >-Don Granaman
> >[certifiable OPS OraSaurus]
> >
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Eric D. Pierce
> INET: [EMAIL PROTECTED]
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
> --------------------------------------------------------------------
> To REMOVE yourself from this mailing list, send an E-Mail message
> to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
> the message BODY, include a line containing: UNSUB ORACLE-L
> (or the name of mailing list you want to be removed from). You may
> also send the HELP command for other information (like subscribing).
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author:
INET: [EMAIL PROTECTED]
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
San Diego, California -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from). You may
also send the HELP command for other information (like subscribing).
