Re: RMAN impact

  • From: "Mark Brinsmead" <pythianbrinsmead@xxxxxxxxx>
  • To: Brandon.Allen@xxxxxxxxxxx
  • Date: Sun, 22 Oct 2006 17:27:52 -0400

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@xxxxxxxxxxx> 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

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