Re: Combining snapclones with DataGuard

From: <>
Date: Tue, 21 Oct 2008 05:02:38 -0700 (PDT)
Message-ID: <>

On Oct 20, 10:05 pm, DA Morgan <> wrote:
> macdba321 wrote:
> > I read quotes from Ari Kaplan explaining how enterprises if possible
> > should (if possible and appropriate) combine the use of snapclones
> > (for SAN-to-SAN replication) with DataGuard.
> > I am confused how an organization could use both of these though. If I
> > am using snapclones, how can I also use DataGuard? What use would DG
> > provide? (Assuming that I am already snapclone'ing the database to the
> > secondary site.)
> > Can anyone shed some light for me?
> > Thanks.
> What also is missing, in addition to the items Sybrand listed, is the
> context.
> For a DR site I wouldn't touch snap clones as doing so one loses some
> of the most critical components of Data Guard Oracle brings to the
> table.
> Snapclones have their place but it isn't in DR. A DR site must be not
> just a 100% clean duplicate of production it must also be logically
> consistent. Something Snapcloning can not guarantee as snapping will
> efficiently replicate corrupt blocks.
> --
> Daniel A. Morgan
> Oracle Ace Director & Instructor
> University of Washington
> (replace x with u to respond)
> Puget Sound Oracle Users


As a long, long, long, time lurker, this is a horribly impolite thread. I wish the posters here would ease up and try to share knowledge instead of trying to be as mean as possible. Perhaps some of us are new to the Oracle world, and others have been around for a few years or decades, it should not matter. Try to help each other and leave your egos at the door.

When I read the original posters question, I interpreted it as a generic discussion. He/She (yes, there are actually females on here!) did not provide versions or platforms. Nor did Ari Kaplan! It's a generic discussion, how is DataGuard used in conjunction with Snapcloning (in an effective manner)?

Yes, we all know that using old versions of the database, old networking capabilities, old OS's, old keyboards, old mice, old ..... (you get the idea) will cause problems. Just assume we're talking generic.

To the originial poster: at least you apologized and attempted to explain yourself (albeit, somewhat sarcastically).

To those with the egos: Try to not be so rude, you may be new to the Oracle or professional arena ... I have a feeling you'll go further if you relax and try to help. But most importantly, feel free to not respond if you have nothing constructive to add. Silence definitely can be golden!

$Jen Received on Tue Oct 21 2008 - 07:02:38 CDT

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