One minor correction to Brandon's otherwise great post:
Incremental backups
are available with Standard Edition, starting with 10gR2. DBAs working with
earlier releases of SE may find the upgrade to
10.2 worthwhile just for that...
Also beginning with 10gR2, RMAN suports changed-block-tracking. With this feature (enabled),
incremental backups only need to
read the blocks that have
changed; this has the potential
to dramatically improve performance of incremental backups. As I recall,
this feature is only
available in Enterprise Edition.
On 10/18/06, Allen, Brandon <Brandon.Allen@oneneck.com> wrote:
.... incremental
backups, which are only available with Enterprise Edition, don't make as much
difference as you might expect because they still require a full scan of all
blocks ...
--
Cheers,
-- Mark Brinsmead
Senior DBA,
The Pythian Group
http://www.pythian.com/blogs