Experiences with backup solutions and dedupe?

Anybody running any of the backup solutions with dedupe functionality? Along the lines of Avamar, Data Domain, Commvault, etc?
We run 5 or more copies of our production databases as dev/test/qa type environments (created via rman duplicate), and was wondering if folks were seeing a significant decrease in backup space requirements due to deduped backups?
Or maybe they aren't working well?
Just looking for folks' experiences.
Thanks in advance!
Edited by: user10857037 on Mar 17, 2010 1:32 PM

Me too! Please let me know if you find anyone has tried Avamar dedup with RMAN. There is an article from EMC describing the processes.
http://www.emc.com/collateral/software/white-papers/h6540-oracle-backup-recovery-perform-avamar-rman-wp.pdf
Thanks.

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Any kind of integration experience with Weblogic JMS and Oracle AQ?

Hi,
In my company I work with java developers who believe in some kind of "holly" database independence I don't understand and as a result my life as a database developer is hell on earth.. Yesterday we again started to discuss, this time where to log, they believe database is slow and prefer logging to filesystem, after some hours finally I could convince them for some operational and reporting needs to use the database and will do this in an asyncronous way whiich they won't get slow. After all I believe the reason for a database is data, this is the place where data lives, and with the correct desing and implementation logging to database would perform better.
I love Oracle features, and know that we paid a lot for this software, so today I started investigating this promised solution. And quickly I found AQ and JMS topics in the documentation :)
After this introduction here is my problem; my company use BEA Weblogic as application server and the java guys want AQ to automatically (but of course with some delay) take their JMS log requests into database tables. Does any one have similar application experience, or any kind of integration experience with Weblogic JMS and Oracle AQ?
Any comments, references, documentation, sample code, url will be most welcomed :)
Thank you very much!
Tonguc
[email protected]
References I found upto now;
Oracle® Streams Advanced Queuing Java API Reference 10g Release 2 (10.2) http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14291/toc.htm
(Packages; javax.jms & oracle.jms)
Oracle® Streams Advanced Queuing User's Guide and Reference 10g Release 2 (10.2) http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14257/toc.htm
Part IV
Using Oracle JMS and Oracle Streams AQPart V describes how to use Oracle JMS and Oracle Streams Advanced Queuing (AQ).
Chapter 11, "Introducing Oracle JMS"
Chapter 12, "Oracle JMS Basic Operations"
Chapter 13, "Oracle JMS Point-to-Point"
Chapter 14, "Oracle JMS Publish/Subscribe"
Chapter 15, "Oracle JMS Shared Interfaces"
Chapter 16, "Oracle JMS Types Examples"
A Sample Code from Otn
http://www.oracle.com/technology/sample_code/tech/java/web_services/jmsws/NewsQueueEJB.java.html

I wouldn't go as far to say Oracle AQ is out-dated today. However, it is indeed a proprietary technology that did not found much main-stream adoption in the earlier years after its introduction. The advent of JMS made it somewhat more useful (or should I say intriguing, because more people are trying to tie it together with other J2EE technologies), but the Oracle's JMS wrapper classes in aqapi.jar were not feature complete for a long while, so using it outside Oracle's application server was painful, if not impossible. I do agree that the info at the dev2dev's JMS newsgroup or in this forum is highly fragmented, as neither Oracle nor BEA provides an official solution to integrate AQ with WebLogic, so people like us have to learn the technology through experimentation and in a piecemeal fashion.
3 years ago I was literally "playing around" - we had a polling mechanism set up to use triggers to write Oracle data changes into an event table, and had a Java-based daemon to scan that table and publish events as JMS messages to the WebLogic JMS server. This continues to work reliably till today, but I was looking for a solution that has few parts - I wanted to hook up my WebLogic MDB directly to AQ as a foreign JMS provider. Although I was able to get it to work (including XA), there were a few hoops I had to jump through, such as decompiling the Oracle AQjms classes to make them bind to the WebLogic JNDI tree.
One year after that Diptanshu Parui took what I did a giant step further - he extended the Oracle AQjms classes to allow them to be bound to the WebLogic JNDI tree naturally, and he figured out how to use WebLogic JMS messging bridge to re-send single-threaded AQ JMS messages to clustered JMS queues, which allow concurrent message assumption by multiple instances of MDB's. My impression is that he is using that setup in a production environment.
I am sure you are aware of it but I would like to make it clear - in order to use AQ as a foreign JMS provider to WebLogic-hosted MDB's, you don't need to update your database to Oracle 10g - Oracle 8i is good enough (although I recommend at least 9i Release 2). It is not the database engine, but rather the aqapi.jar JMS wrapper on top of AQ that matters. I do recommend that you use aqapi.jar from Oracle Application Server 10.0.3 or up for better XA support, among other things. Again, you don't have to replace WebLogic with Oracle AS - you only need a single jar file from it and put it in your WebLogic's classpath. However, I don't know what this means from a licensing point of view if you ever go to production - do you have to pay the full price of OracleAS or OC4J just to use the aqapi.jar?
In the coming days I will test the latest aqapi.jar to see how much progress Oracle has made in terms of making their J2EE products more spec-compliant :-).
Hope the above gives you a different perspective.
Eric

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lol, good one James. + for you.
I remember this same thing with the iPod Mini. That was released in February 2004 and there were a huge number of cases by around April. But the mini was announced in January which ment the third party makers had a whole month to design and make cases.
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Your experience with Toshiba NB550D and Ubuntu

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does anyone of you have any practical experience with the laptop NB550D and running Ubuntu 11.04 (like did you have any problems with it )?
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Message was edited by: ryuuko

Hi, sorry am not in Eu; i live in the US... the mini notebook model I have is NB505-N508BN. I think you should have equivalent models where you live. Just wanted to say that I have been able to successfully install and dual boot between Win 7 Starter and Kubuntu 11.04, on my netbook. In fact, i mostly use Kubuntu now, unless I need to make a backup of my system (which I do from Windows). It works great and I love it. Right now I am posting from a Firefox browser opened in Kubuntu.
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Nat
This is the link:
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New Customer - Have had MISERABLE experience with Verizon service and Customer service

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That was enough for one day
I call back again the next day... same old thing... put on hold for 30 mins, talk to one person who cant help me, transferred to another department and put on hold for 20 more mins.
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I did call them this morning, and still on the phone.
I will say this - the reps are very friendly and do try to help in earnest. That's been my experience overall with Verizon. So in terms of the actual people, I give them an A+.
In terms of their system and how they process things, they get a big fat F. The very idea that I sent back a phone with accessories and their warehouse only registered the return of the phone pretty much says that there is something fishy going on there at the warehouse. And it took an hour to sort this out so far and counting.
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much like to hear from you. Thanks in advance for your opinions
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There are two levels that I'm used to seeing:
Code Profiling (lower level) -
JVM
jProbe
optimizit
etc.
Performance Management (higher level) -
Precise Indepth
Wily Introscope
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Peace,
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Tangosol, Inc.
Clustering Weblogic? You're either using Coherence, or you should be!
Download a Tangosol Coherence eval today at http://www.tangosol.com/
"Alan Moyer" <[email protected]> wrote in message
news:3c99e72b$[email protected]..
>
Hi,
I'd like to get a good tools for profiling an application
running under WebLogic 6.0 on Win 2000. So far searching the
web, I found Borland Optimizeit and Sitraka jprobe. I once
downloaded an evaluation copy of jprobe but I didn't have
sufficient time to really learn how to use it before the license
expired. I fiddled around a little with the the Java built-in
HPROF and a couple of tools to visualize the data. Specifically
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get PerfAnal to work on a simple application. Examining the data
file output from HPROF seems to provide limited or hard to read
information.
If you have experience with a tool that you like, I would very
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and insites.
Al Moyer

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