1. We did not use remote archival in case of a network failaure. (The
customer had a pretty overloaded ATM network that crashed two three times a
day.
2. What I ment by dedicated server is that we did not allow any other
application of functionallity to be installed on the primary or secondary
database host, apart from backup and recovery SW. No file server, only the
database and the backup SW. Not even print server ( some years back we had
our Windows NT server crash because an errorous Word file got stuck in the
spool...).
3. Failing back to the primary site is not that difficult, since in our case
we can offer an off time for the failing back to primary. In this case we
make cold backup from the standby, move it to the primary site via LAN (
it's already a 256 Mbit LAN). After backing up the control files from the
newly created primary site, life can go on. Failing back can be done when
business is low i.e. on a weekend night.
I have got a question about Data Guard: Do you have to have Enterprise
Edition for it to work? We did not use Managed Standby Database
functionallity, because it needed Enterprise Edition licence - and it meens
a huge extra cost.
Regards,
Tamas Szecsy
==========================
-----Original Message-----
Sent: 2001.04.27. 6:31 PM
To: Multiple recipients of list ORACLE-L
I have recently implemented it at Cox, San Diego.
I faced lot of problems in switching between Read Only and sunstained
recovery modes with 8.1.6.
I could not conclude anything about this, may be bug in 8.1.6.
I am observing everyone mentioning about scheduling a job to transfer arch
files
to secondary.Why not using the feature of remote archival.
I have used it and I didn't have any problems.
Only script I had to develop was the one to monitor errors on Primary
and Standby sites to take care of Archival and recovery breaks.
Suren
-----Original Message-----
Sent: Friday, April 27, 2001 9:45 AM
To: Multiple recipients of list ORACLE-L
Yes we did.
It's on windows NT. We have implemented manually managed standby database,
with a db job on the primary database archiving online redo log files every
five minutes to minimize data loss in case of a crash of the primary
database. The standby database server ftps *iwth a windows nt scheduled job,
running every 15 minutes) new archive log files to it's local drive and
applies them to the standby database if it's not in read-only mode for
reporting.
It's working since a more than a year, never had any problems with it. If
Windows NT server is kept away from frequent install/deinstall of various
applications then within my experience it is a stable solution. By the way,
if Oracle Technet can be believed, Oracle 9i will have an automatic fail
over feature for the standby database.
My view is that you should use Oracle 8.1.7. Oracle 8.1.6 has some problems
with read-only mode combined with managed standby database - or so I heard.
Regards,
Tamas Szecsy
===========================================
Anyone implemented SBDBs recenetly? A client is comparing them to a cluster
solution involving Fail-Safe. We are recommending SBDB and trying to go to
817 also (on 80521 now).
Also this is NT if that makes a difference.
Thanks,
Earl
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