Re: San-Based replication VS DataGuard replication

From: DA Morgan <>
Date: Fri, 03 Oct 2008 13:20:01 -0700
Message-ID: <>

Chris Seidel wrote:
> DA Morgan wrote:

>> Actually there is: Oracle is not going to rollback a transaction
>> because the SAN can not replicate it.

> Hm, I would say that the SAN reports an I/O error in sync mode if it cannot
> replicate.
> Shouldn't this abort the oracle transaction?

No. The local commit has already taken place. The write to the local redo log file has already taken place. Otherwise there would be nothing written to disk for the SAN to ship.

Daniel A. Morgan
Oracle Ace Director & Instructor
University of Washington (replace x with u to respond)
Puget Sound Oracle Users Group
Received on Fri Oct 03 2008 - 15:20:01 CDT

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