Under 8.0.X you can use log_archive_duplex_dest. It is
also available on 8i. However, if you use
log_archive_dest_n on 8i, you cannot set
log_archive_duplex_dest.
Similarly, on 9i, if you use log_archive_dest, you
could not set log_archive_dest_n.
Finally and regarding rman on 9i, you can configure
for backing up many copies of archives and datafiles
as you want. F.e.:
rman>configure archivelog backup copies for device
type disk to <n>;
Probably this is not what you are looking for, however
it is there if you wanna try........
Regards.
- "Jack C. Applewhite" <japplewhite_at_inetprofit.com>
wrote:
> Dennis,
>
> We use
>
> log_archive_dest_1
> log_archive_dest_2
>
> sending a copy of each archived redo log to our
> Standby database
> (log_archive_dest_2).
>
> log_archive_dest_2 is used with the OPTIONAL
> parameter, since we don't want
> to stop archiving if the Standby is down or there's
> some problem with the
> LAN.
>
> We also have
> log_archive_min_succeed_dest = 1
> to make sure that the archiving succeeds at least to
> the local target drive
> (log_archive_dest_1).
>
> It's worked great for us (8.1.6.0.0 EE under Win2k).
>
> BTW, we use RMan for hot backups and like it very
> much. We can also issue
> the Alter Tablespace Begin Backup command and get
> instantaneous results -
> which I had to do recently to restore some datafiles
> to the Standby after
> one of its disks failed. I wonder why you get such
> slow response?
>
> Jack
>
> --------------------------------
> Jack C. Applewhite
> Database Administrator/Developer
> OCP Oracle8 DBA
> iNetProfit, Inc.
> Austin, Texas
> www.iNetProfit.com
> japplewhite_at_inetprofit.com
> (512)327-9068
>
>
> -----Original Message-----
> WILLIAMS
> Sent: Thursday, December 06, 2001 12:29 PM
> To: Multiple recipients of list ORACLE-L
>
>
> Is anyone using the LOG_ARCHIVE_DUPLEX_DEST
> parameter? Any problems with it?
>
> We are on Oracle 8.1.6 on Compaq Tru64. On our ERP
> 150-gig. database, we are
> currently doing a cold backup weekly. This means
> that we are very dependent
> on archive logs.
> - Recovery time isn't a big concern. In the event
> of a failure, recovery
> time isn't that critical. Loss of a week of work
> would be.
> - We have tried hot backups successfully on
> smaller databases, but we
> found that once we issue ALTER TABLESPACE BEGIN
> BACKUP there was often a
> delay of hours for that command to complete. So we
> gave up on hot backups.
> - We are starting to work with RMAN and feel in
> the long run this will be
> an ideal solution. Thanks to everyone for answering
> my newby RMAN questions.
> - Recently Oracle has added a feature to duplex
> the archive log files.
> This sounds like it would lessen our archive log
> vulnerability. However, it
> causes my sys admin more work, so I would appreciate
> some feedback before I
> add this burden to his work.
> Thanks for any thoughts you care to share.
> Dennis Williams
> DBA
> Lifetouch, Inc.
> dwilliams_at_lifetouch.com
>
>
>
> --
> Please see the official ORACLE-L FAQ:
> http://www.orafaq.com
> --
> Author: Jack C. Applewhite
> INET: japplewhite_at_inetprofit.com
>
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> (like subscribing).
ENG. Christian Trassens
Senior DBA
ctrassens_at_yahoo.com
christian_trassens_at_yahoo.es
Phone : +34-699240979
+34-649824704
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--
Author: Christian Trassens
INET: ctrassens_at_yahoo.com
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Received on Tue Dec 11 2001 - 04:00:54 CST
