Re: How Does this work in Detail: Archiving the Standby Redo Log on the Standby Database

From: cfoughty <cfoughty_at_gmail.com>
Date: Thu, 22 Oct 2009 16:19:12 -0700 (PDT)
Message-ID: <25c6c855-be9e-478b-880c-7329e5923c81_at_o21g2000vbl.googlegroups.com>

On Oct 22, 4:06 pm, joel garry <joel-ga..._at_home.com> wrote:
> On Oct 22, 12:23 pm, cfoughty <cfoug..._at_gmail.com> wrote:
>
>
>
> > On Oct 22, 12:21 pm, cfoughty <cfoug..._at_gmail.com> wrote:
>
> > > This is mainly just for my interest.
>
> > >  The documentation says the following:
>
> > > A log switch on the primary database triggers a log switch on the
> > > standby database, causing ARCn processes on the standby database to
> > > archive the standby redo log files to archived redo log files on the
> > > standby database.
>
> > > So what process on the primary sends the message to what process on
> > > the standby telling the ARCH on the standby server to archive the
> > > current standby redo log?
>
> > > Does the ARCH process on the primary send a message to the RFS process
> > > on the standby server, and then the RFS process sends a message to the
> > > ARCH process on the standby server telling the standby server ARCH to
> > > archive the current standby redo log?
>
> > > OR
>
> > > Does the ARCH process on the primary send a message to the ARCH
> > > process on the standby server telling the standby ARCH to archive the
> > > current standby redo log?
>
> > > OR
>
> > > Some other method to tell the ARCH process on the standby server to
> > > archive the current standby redo log?
>
> > > I just want to know how it works.
>
> It depends:  http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/log_tr...
>
> Look at table 5-2 and the pretty pictures throughout.
>
>
>
> > > Thanks,
>
> > > Cy Foughty
>
> > I'm running 10gR2
>
> jg
> --
> _at_home.com is bogus.http://www.flickr.com/photos/scobleizer/29119056/

That's a high level view. I want to know down at the process level. Received on Thu Oct 22 2009 - 18:19:12 CDT