Re: Differential incremental backups
Date: Thu, 18 Mar 2010 11:47:34 -0300
can you point to any documentation regarding levels 3 and 4? I can't seem to find any, and can't fathom what they are for.
On Thu, Mar 18, 2010 at 11:02 AM, andrey khudyakov < andrey.hudyakov_at_gmail.com> wrote:
> Small clarification.
> in fact, there are 5 levels of incremental backups.
> 0 - is the base level, and 1-4 incremental levels
> 2010/3/18 Guillermo Alan Bort <cicciuxdba_at_gmail.com>
> According to Oracle Courseware (it's been a while, but I think I remember
>> it right). There are Full Backups and Incremental Backups. Full Backups take
>> the entire database, Incremental backups have different levels.
>> Level 0 Incremental Backup: Takes the entire database (works just like a
>> full backup, but is used for base point to level 1 and 2 incremental
>> Level 1 Incremental Backup: backs up all blocks changed after the most
>> recent incremental backup at level 1 or 0
>> Level 2 Incremental Backup (differential): backs up all blocks changed
>> after the most recent incremental backup at level 0