Re: RMAN incremental backup level ???
- From: andrey khudyakov <andrey.hudyakov@xxxxxxxxx>
- To: robertgfreeman@xxxxxxxxx
- Date: Mon, 21 Jun 2010 08:55:40 +0300
Please, read this topic
//www.freelists.org/post/oracle-l/Differential-incremental-backups,6
<//www.freelists.org/post/oracle-l/Differential-incremental-backups,6>
2010/6/20 Robert Freeman <robertgfreeman@xxxxxxxxx>
> This change has to do with the ability to recover through an incarnation.
> It really does not change the basic fact that you have to have a base level
> 0 backup... it's just that now, that level 0 backup can exist in a previous
> incarnation if compatible is set correctly.
>
> RF
>
>
> Robert G. Freeman
> Master Principal Consultant, Oracle Corporation, Oracle ACE
> Author of various books on RMAN, New Features and this shorter signature
> line.
> Blog: http://robertgfreeman.blogspot.com
>
>
> ------------------------------
> *From:* Leyi Zhang (Kamus) <kamusis@xxxxxxxxx>
> *To:* karlarao@xxxxxxxxx
> *Cc:* "mccdba1@xxxxxxxxx" <mccdba1@xxxxxxxxx>; "oracle-l@xxxxxxxxxxxxx" <
> oracle-l@xxxxxxxxxxxxx>
> *Sent:* Sat, June 19, 2010 11:08:12 PM
> *Subject:* Re: RMAN incremental backup level ???
>
> Maybe there are someone, haven't noticed incremental backkup changed
> in someway after 10g, just like me :-)
>
> If NO level 0 backup exists, what would happen when you issue a level
> 1 backup? I shared this reading to listers. Briefly, it depends on
> compatibility initial parameter.
>
> http://download.oracle.com/docs/cd/E11882_01/backup.112/e10642/rcmcncpt.htm
>
> +++++++++
> Differential Incremental Backups
>
> In a differential level 1 backup, RMAN backs up all blocks that have
> changed since the most recent incremental backup at level 1
> (cumulative or differential) or level 0. For example, in a
> differential level 1 backup, RMAN determines which level 1 backup
> occurred most recently and backs up all blocks modified after that
> backup. If no level 1 is available, then RMAN copies all blocks
> changed since the base level 0 backup.
>
> If no level 0 backup is available in either the current or parent
> incarnation, then the behavior varies with the compatibility mode
> setting. If compatibility is >=10.0.0, RMAN copies all blocks that
> have been changed since the file was created. Otherwise, RMAN behaves
> as it did in previous releases, by generating a level 0 backup.
> +++++++++
>
> --
> Kamus <kamusis@xxxxxxxxx>
>
> Visit my blog for more : http://www.dbform.com
> Join ACOUG: http://www.acoug.org
>
>
>
> On Sat, Jun 19, 2010 at 9:52 AM, Leyi Zhang (Kamus) <kamusis@xxxxxxxxx>
> wrote:
> > Actually start from 10gR1 doc, there's only incremental level 0 and 1,
> > no 2,3,4 anymore.
> >
> http://download.oracle.com/docs/cd/B14117_01/server.101/b10735/bkup.htm#1034168
> >
> > I think Karl mentioned MOS note should be 733535.1
> >
> > "Yes the backup incremental level 2 is supported in Oracle10g.
> > Reference to this level was removed
> > from the documentation for simplicity sake. Realistically, a level 2 =
> > a differential level 1."
> >
> > --
> > Kamus <kamusis@xxxxxxxxx>
> >
> > Visit my blog for more : http://www.dbform.com
> > Join ACOUG: http://www.acoug.org
> >
> >
> >
> > On Fri, Jun 18, 2010 at 11:54 PM, Karl Arao <karlarao@xxxxxxxxx> wrote:
> >> Afaik Yes .. I think the level 2 will still work but it will still be
> >> treated as level1..
> >> And There's a mos note about this.. I'll post it here once I get hold of
> it..
> >>
> >> I encountered this one when I was fixing an rman backup script on a
> client..
> >>
> >> - Karl Arao
> >>
> >> On Friday, June 18, 2010, dba1 mcc <mccdba1@xxxxxxxxx> wrote:
> >>> I look ORACLE RMAN 11G user's guide and found RMAN incremental backup
> only have level 0 and 1.
> >>>
> >>> Is it true after ORACLE 10GR2 there is no level 2, 3, 4 incremental
> backup for RMAN?
> >>>
> >>> Thanks.
> >>>
> >>>
> >>>
> >>> --
> >>> //www.freelists.org/webpage/oracle-l
> >>>
> >>>
> >>>
> >>
> >> --
> >> Karl Arao
> >> karlarao.wordpress.com
> >> karlarao.tiddlyspot.com
> >> --
> >> //www.freelists.org/webpage/oracle-l
> >>
> >>
> >>
> >
> --
> //www.freelists.org/webpage/oracle-l
>
>
>
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