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RE: Recovery from noarchive db corrected

From: Hallas, John <HallasJ_at_logicae.com>
Date: Fri, 06 Apr 2001 04:19:00 -0700
Message-ID: <F001.002E3CB0.20010406042051@fatcity.com>

The normal method is to copy out the days worth of archive log file as part of your normal backup routine. Then maybe keep 2 days worth on-line so that they are available for a recovery without getting them back from tape.

Keep a watch on the disk space to ensure that the disk does not get full and a new archived redo log cannot be created.

John

John Hallas

                -----Original Message-----
                From:   Sinardy Xing [mailto:sinardyxing_at_bcsis.com]
                Sent:   06 April 2001 12:56
                To:     Multiple recipients of list ORACLE-L
                Subject:        RE: Recovery from noarchive db corrected

                Hi Hallas and All DBAs

                Thank you for your advise.

                I have a question if I turn on our archive redo log do I
need to copy out
                that archive log frequently ?


                -----Original Message-----
                John
                Sent: Friday, 6 April 2001 7:21 PM
                To: Multiple recipients of list ORACLE-L


                FOR YOUR INFORMATION

                ESIS and EPFAL are now part of Logica. The Internet email
addresses of the
                staff has changed to the following -
lastnameinitial_at_logica.com eg
                SMITHK_at_logica.com. Emails using the old format will continue
to be delivered
                until 30th June 2001.

                With no disrespect to your English, the phrase "weakly copy
of dbf files"

(rather than weekly) seems rather appropriate.
As several other listers have stated, by far the best option is to enable archive logging. Whilst you seem to have the bases covered, have you considered how long it will take to re-apply the batch files and whilst there may not be much online input you are running the risk of losing all data that has been input after your last export and before the next one. Best advice seems to be try archive logging and identify the impact then make a considered judgement. John John Hallas * +44 (0) 115 945 6643 * +44 (0) 115 945 6774 -----Original Message----- From: Sinardy Xing [mailto:sinardyxing_at_bcsis.com] Sent: 06 April 2001 11:10 To: Multiple recipients of list ORACLE-L Subject: RE: Recovery from noarchive
db corrected
                                Currently the application insert data from
batch localy and
                a bit from
                                online insertion. We have clustering for our
database.
                                noarchive, I do export tables after run
batch (daily),
                weakly copy out all
                                dbf files and ctl and redo log files. and
copy them to tape.
                                It's that true once the redo log switch,
oracle will write
                redo log changes
                                to dbf ?
                                Do you have any recomendation for better
backup strategy ?
                                -----Original Message-----
                                Pather
                                Sent: Friday, 6 April 2001 1:30 PM
                                To: Multiple recipients of list ORACLE-L


                                Sinardy,

                                Who will recover the database in case of a
failure?
                                Turing on archiving would not hinder
performance so much.
                                Proper planning of your backup strategy and
db setup will
                have little
                                overhead
                                on performance of your database.

                                You cannot sacrifice backups for a marginal
increase in
                performance
                                especially if
                                your db is a high transaction processing
system.
                                Regards
                                Suhen





                                The developer application running huge batch
inserting data
                into database,
                                that is what they told me, if you are me
what you will do?
                                -----Original Message-----
                                Testa
                                Sent: Friday, 6 April 2001 11:55 AM
                                To: Multiple recipients of list ORACLE-L


                                assuming you're the dba, since when does the
developer
                dictate
                                recoverability to a DBA about a database.

                                sounds like a role problem there.

                                joe

                                Sinardy Xing wrote:
                                >
                                > Our Developer prefer the archive off, I
can't change that
                anymore :(
                                >
                                > -----Original Message-----
                                > Sent: Thursday, 5 April 2001 8:54 PM
                                > To: LazyDBA mailing list
                                >
                                > Turn archiving on.
                                >
                                > > -----Original Message-----
                                > > From: Sinardy Xing
[mailto:sinardyxing_at_bcsis.com]
                                > > Sent: Thursday, April 05, 2001 4:57 AM
                                > > To: LazyDBA mailing list
                                > > Subject: Recovery from noarchive db
corrected
                                > >
                                > >
                                > > Hi,
                                > >
                                > > My database is noarchive mode, what
should I do to
                prevent
                                > > from lossing any
                                > > transactions ?
                                > > Like for example incresed the REDO
buffer to ... (daily
                buffer)?
                                > > Will this decrese the performance ?
                                > > any technique to share ?
                                > >
                                > > Sinardy
                                > >
                                > > --------
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                                > Author: Sinardy Xing
                                >   INET: sinardyxing_at_bcsis.com
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                                Author: Sinardy Xing
                                  INET: sinardyxing_at_bcsis.com

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                                Author: Sinardy Xing
                                  INET: sinardyxing_at_bcsis.com

                                Fat City Network Services    -- (858)
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                Author: Hallas, John
                  INET: HallasJ_at_logicae.com

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                Author: Sinardy Xing
                  INET: sinardyxing_at_bcsis.com

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Author: Hallas, John
  INET: HallasJ_at_logicae.com

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Received on Fri Apr 06 2001 - 06:19:00 CDT

Original text of this message

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