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Home -> Community -> Mailing Lists -> Oracle-L -> RE: RMAN disaster recovery
Thanks for the input, Cherie, Kimberly, Tom
The part I'm still uncertain is as follows - see the sentence in caps below:
On my current system let's say I have RMAN write its backup file to a disk location "/ora01". I also have my RMAN catalog on a separate server, and have written an export to my backup tape also.
After my disaster, my hardware vendor offers me the use of a comparable system at a different location. I grab my backup tape and get in the car. And if it is a real disaster, maybe it is the older backup out of the off-site vault.
Let's assume that Oracle is already installed on this new system just to move the story along as Hollywood would say.
I load my RMAN catalog.
I START TO LOAD THE RMAN BACKUP FILE TO /ora01 AND DISCOVER THE NEW
SYSTEM DOESN'T HAVE THAT DEVICE. Do I simply create a link and RMAN will be
fine with that?
I fire up RMAN and start the recovery process. Using the syntax Tom provided, I should be able to account for any other device naming or path naming problems.
Kimberly - we aren't quite talking about the need for a standby database. This manager's point, and I feel it is a good one, is that if you have been making backups and storing them off-site, you should be able to mount those backups on a new machine and get your system back. Eventually. Given a lot of time. If something catastrophic happens and you say that because the company didn't spend the big bucks for a duplicate remote data center with a standby database, the recovery will take a week, that would be survivable. But if you say that because you switched to this really keen backup method there is just no way to ever get the data back, well you better make sure your resume was off-site as well.
Naturally before we quit making weekly cold backups we are going to have to actually test this scenario. I assume that the same applies to your sites also.
Dennis Williams
DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com
-----Original Message-----
Sent: Friday, November 30, 2001 11:52 AM
To: Multiple recipients of list ORACLE-L
Also, if that is the type of recovery he wants then sell him on a standby database. If you lose your server that severely you will only be able to get back to the last backup regardless of where your recovery catalog is (hopefully on another server or at least backed up).
-----Original Message-----
Killough
Sent: Friday, November 30, 2001 7:11 AM
To: Multiple recipients of list ORACLE-L
I have never tried to burn my servers to ash, but I usually try to put the rman catalog on a different server than the ones that it is backing up. You also need to backup the catalog, which I do w/ a nightly export.
>From: DENNIS WILLIAMS <DWILLIAMS_at_LIFETOUCH.COM>
>Reply-To: ORACLE-L_at_fatcity.com
>To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
>Subject: RMAN disaster recovery
>Date: Fri, 30 Nov 2001 06:25:23 -0800
>
>I am wondering how RMAN would work for disaster recovery. Our manager's
>statement is "assume your server is reduced to a pile of ash. Now take your
>backup tape and build me a new system on a loaner from the vendor." I am
>trying to figure how that would work with RMAN. We are still at the stage
>of
>just using RMAN to create disk copies, and we are on Compaq Tru64 UNIX. He
>wants us to demonstrate that level of recoverability, but I'm not sure how
>that would work. I think we could assume that we have a database to load
>the
>RMAN catalog from an export.
> One issue would be whether the disk location of the RMAN files might
>be different, and I'm not sure how to get RMAN to accept a different
>location. A more minor issue is if the database file locations are
>different, but I think that is pretty well documented.
> Has anyone else tried this? What am I overlooking? Any ideas will be
>appreciated.
>Dennis Williams
>DBA
>Lifetouch, Inc.
>dwilliams_at_lifetouch.com
>
>--
>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>--
>Author: DENNIS WILLIAMS
> INET: DWILLIAMS_at_LIFETOUCH.COM
>
>Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
>San Diego, California -- Public Internet access / Mailing Lists
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-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Mike Killough INET: mwkillough_at_hotmail.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Kimberly Smith INET: ksmith2_at_myfirstlink.net Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: DENNIS WILLIAMS INET: DWILLIAMS_at_LIFETOUCH.COM Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Fri Nov 30 2001 - 15:36:23 CST
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