Charlie - Currently on most of our systems we do a weekly cold backup and
rely on archive logs for the rest of the week. We augment this with full
exports a couple of days/week. This is not ideal. Previously we did nightly
cold backups, but our systems grew to the point that wasn't practical. We
tried hot backups a couple of years ago, but the time between issuing the
start backup command and the system responding took too long on each
tablespace, so we had to give that up. If I tried that today, I would ask
this list for suggestions and might resolve the problem.
Now we are looking at moving to RMAN. Depending on the size of your
system, you should consider RMAN. It seems to offer many advantages,
especially the ability to perform on-line backups with no penalties. We are
starting by backing up to disk because that appears to be a little simpler.
Dennis Williams
DBA
Lifetouch, Inc.
[EMAIL PROTECTED]
-----Original Message-----
Sent: Monday, April 01, 2002 7:18 AM
To: Multiple recipients of list ORACLE-L
Charlie,
We do a cold backup of the production database active tablespaces (36
GIG) each night and a cold backup each Sunday night of the full
database(active and read-only tablespaces 70 GIG). The reason we backup
the read-only each week is it is easier to restore from one tape and I
do not control the backup script. I find it easier to have the group in
control of the backups to just backup the whole server once a week. Then
I do not have to double check them all the time if I make changes to the
database read-only data. Every 6 months I move a lot of data from the
active tables to the archive tables and the majority of the time it will
take 2 - 3 weeks to gat all the data moved( I have space limits on my
archivelog destination). It can be a challange to make sure another
department updates and completes their work. Our system is primarly a
load in the am and query all day but there is a second instance that
contains all of the applications that are query and update
applications.
ROR mª¿ªm
>>> [EMAIL PROTECTED] 03/29/02 04:33PM >>>
How many sites are doing cold backups? At what frequency?
How many sites are doing hot backups? At what frequency?
Does anybody know the existance of any "Best Practices"
paper on the web that discuss the topic of Oracle backups?
If so, what's the URL?
TIA!
--
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