Re: student question: incremental backups (level 0 and level 1)
Date: Wed, 25 Jun 2008 08:27:16 -0700 (PDT)
On Jun 25, 9:36 am, pellicleund..._at_hotmail.com (obakesan) wrote:
> In article
> "fitzjarr..._at_cox.net" <orat..._at_msn.com> wrote:
> >No. They are below the HWM so they do get backed up. Any block below
> >the HWM has the potential to contain data. Thus, all blocks below the
> >HWM are backed up.
> Hmm ... but I thought that only used blocks were backed up in an incremental
> backup. Does this mean that it can't determine if a block is used or not used?
> >It's wrong only in your mind. It's correct in terms of the concepts
> >and functionality of RMAN.
> well, of course everything only ever exists in my mind. All of this will cease
> to exist when that stops ;-)
> See Ya
> (when bandwidth gets better ;-)
> Chris Eastwood
> Photographer, Programmer Motorcyclist and dingbat
> please remove undies for reply
'Used' blocks are backed up in a level 1 or level 2 incremental; a level 0 incremental is about as close to a full backup as you can get and still keep an incremental strategy.
David Fitzjarrell Received on Wed Jun 25 2008 - 10:27:16 CDT