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Re: [8i] redo logs

From: Howard J. Rogers <dba_at_hjrdba.com>
Date: Wed, 27 Mar 2002 17:07:24 +1100
Message-ID: <a7rnku$udu$1@lust.ihug.co.nz>


Good old Unix, eh?

Thanks for this.

Regards
HJR

--
------------------------------------------
Resources for Oracle : www.hjrdba.com
============================

"Igor Laletin" <ilaletin_at_usa.net> wrote in message
news:f9226414.0203262142.615578fe_at_posting.google.com...

> "Howard J. Rogers" <dba_at_hjrdba.com> wrote in message
news:<a7qprk$u28$1_at_lust.ihug.co.nz>...
> > Try bouncing the Instance (shutdown - startup).
> >
> > You don't say what platform you are running on, but I've seen this on
Unix,
> > for example: deleting the files at the O/S level makes it seem like the
> > files don't exist, but until Oracle really lets go of them, they seem to
> > persist in the aether, somewhere, somehow. Shutting Oracle down usually
> > gives the all-clear to the O/S to *really* go ahead and delete them.
> >
>
> It's not exactly the same. When you delete an opened file in Unix, the
> file _name_ is deleted from a directory but its i-node and its space
> stay used. You can reuse the file name but you won't get space back
> while the file stays opened by at least one process. When the last
> process closes the file its space is returned to the free list and
> i-node is marked as unused. ... Well, at least in the classical unix
> filesystems.
>
> Frederic can't create a file with the same _name_ which means either
> oracle still has it in the data dictionary or file is still in the
> filesystem.
>
> Regards,
> Igor
>
> > Regards
> > HJR
> > --
> > ------------------------------------------
> > Resources for Oracle : www.hjrdba.com
> > ============================
> >
> > "Frederic Payant" <fpayant_at_club-internet.fr> wrote in message
> > news:34n1ausivk32qgvs7u0139vgdpf4m98iea_at_4ax.com...
> > > Hi,
> > >
> > > I've a very little problem with my Oracle 8.1.7 database :
> > > I had to resize my 3 redo log files, so I created 3 new redo logs,
> > > with datafiles numbered from 4 to 6 and drop the tree old ones. Then I
> > > removed the files corresponding to old redo logs.
> > > I then decided to create three others redo logs numbered from 1 to 3.
> > > And I couldn't because Oracle said me they already existed.
> > > Is this a normal comportement or did I forget anything ?
> > > Regards
> > > Frederic PAYANT - junior DBA ;-)
Received on Wed Mar 27 2002 - 00:07:24 CST

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