RE: RMAN - Local vs. central backup script
- From: DENNIS WILLIAMS <DWILLIAMS@xxxxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Wed, 2 Feb 2005 10:36:39 -0600
Thanks everyone for sharing your views on this topic. After reviewing the
advantages of each configuration, it looks like we will initially go with
scripts that are local to target server. We are backing up to disk, and
using image copies for cold backups. We are also looking at online image
file copies in the future. It seems 10g is enhancing the imagefile copy
capability.
When I mentioned where the executable runs, I mis-spoke (thanks Mladen),
and really should have mentioned the RMAN Client Compatibility. In the 10g
documentation there is a compatibility discussion of the RMAN client
versions. My understanding is that with a local script, the local RMAN
client is used, so there should be no compatibility issues. We have also
found character set issues that we feel are due to using a remote client.
Again, thanks everyone for your input.
Dennis Williams
DBA
Lifetouch, Inc.
-----Original Message-----
From: Mercadante, Thomas F [mailto:thomas.mercadante@xxxxxxxxxxxxxxxxx]
Sent: Wednesday, February 02, 2005 7:24 AM
To: 'Paula_Stankus@xxxxxxxxxxxxxxx'; Mercadante, Thomas F; DENNIS WILLIAMS;
oracle-l@xxxxxxxxxxxxx
Subject: RE: RMAN - Local vs. central backup script
I don't telnet to each machine every day. The shell scripts are installed
on each machine, the cron schedule is set up, and things run just fine.
But I would be interested in seeing your parameterized Rman scripts you
store in the catalog.
-----Original Message-----
From: Paula_Stankus@xxxxxxxxxxxxxxx [mailto:Paula_Stankus@xxxxxxxxxxxxxxx]
Sent: Tuesday, February 01, 2005 4:05 PM
To: thomas.mercadante@xxxxxxxxxxxxxxxxx; DWILLIAMS@xxxxxxxxxxxxx;
oracle-l@xxxxxxxxxxxxx
Subject: RE: RMAN - Local vs. central backup script
Right there is the issue - why telnet to each machine if you don't have
to. Why manage - upgrade X number of RMAN databases???? Why duplicate
the code on X number of machines..... Why...why...why....???
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Mercadante, Thomas F
Sent: Tuesday, February 01, 2005 2:37 PM
To: 'DWILLIAMS@xxxxxxxxxxxxx'; Oracle-L
Subject: RE: RMAN - Local vs. central backup script
Dennis,
I find it just as easy to have a standard Rman cron script and simply
have it installed on each box. Cron runs on each box and schedules the
backup accordingly.
Obviously, if you have something like Tivoli Workload Scheduler, it
would be easier to control the backups from one place - this simply runs
the shell script on each machine.
To me, its 6 of one, half a dozen of the other. We telnet to each
machine as needed.
Hope this helps.
Tom
-----Original Message-----
From: DENNIS WILLIAMS [mailto:DWILLIAMS@xxxxxxxxxxxxx]
Sent: Tuesday, February 01, 2005 2:06 PM
To: Oracle-L
Subject: RMAN - Local vs. central backup script
We use RMAN on Oracle9i to back up to disk. No SAN or MML, but use an
RMAN catalog. I use cron to initiate the backup (Unix servers). In
revising the system, I'm trying to decide whether it is better to use
the cron on each server, or just trigger backups centrally, from servers
where the RMAN catalogs reside. It seems like most of the advantages go
to the local script. You are always running the same RMAN executable as
the database. Has anyone else looked at this issue and care to share any
thoughts?
Dennis Williams
DBA
Lifetouch, Inc.
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