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Re: oracle, hotbackup and split mirror

From: Sybrand Bakker <postbus_at_sybrandb.demon.nl>
Date: Sun, 06 Mar 2005 22:15:29 +0100
Message-ID: <p5sm215gj0gcvmkvpnbk2sdcijmhg5uq5o@4ax.com>


On Sun, 6 Mar 2005 18:28:40 +0000 (UTC), "Paresh Chudasma" <pareshc_at_btconnect.com> wrote:

>Dear group,
>
>I would like to know how I can use oracle hotbackup mode and guarantee that
>all data has been flushed from memory onto disk before I split the mirror.
>
>Would causing a checkpoint do it before going into hotbackup mode or
>changing the log (or doe this cause a checkpoint in it self?)?
>
>Also what is the effect of the checkpoint? Is causing one to clear the
>memory buffers of transactions detremental to the DB? And does it use a
>write that goes to the filesystem level or all the way to the disk? The
>reason I ask is because I would like to know if it would be necessary to
>use OS sync to flush the filesytem cache.
>
>Also I think I should suspend as well, any views please.
>
>Regards
>
>Paresh
>
>

http://download-uk.oracle.com/docs/cd/B10501_01/server.920/a96524/c01_02intro.htm#3529

--
Sybrand Bakker, Senior Oracle DBA
Received on Sun Mar 06 2005 - 15:15:29 CST

Original text of this message

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