Posts Categorized: Oracle
I think the results we got so far may surprise you. At lease those doesn’t seems to be the results +Alex Gorbachev and +Kevin Closson expected to see. You can find the first related blog post over here. It will give you the necessary context for further reading. Just to recap: +Kevin Closson says “Orion may give It’s VERY easy to get huge Orion nums but reasonable SLOB” and +Alex Gorbachev “lots of the system IO bound below the CPU level so you should see similar number with Orion or SLOB.” Let see what first testing results revealed.
I am going to continue writing about our ongoing IO testing efforts under this blog I decided to provide the first post here to give readers a bit more context. SLOB is nothing but a ~84MB schema with a table and index created in Oracle database to test LIO (if you set a big db_cache_size) or PIO (if you sent a small db_cache). Well by default there are 128 schemas created with the same data structures.IMHO: This is a very good idea to test the performance by executing the same actions that most of Applications do in a real live, but make it so simple that it is application agnostic.
They say, “April showers bring May flowers.” They basically say that nature brings different things in different colors aimed at improving the things. That is so true for the blogging world too. This Log Buffer Edition also brings out different blog posts to improve things, so enjoy the Log Buffer #271.
When preparing for the the IOUG Collaborate 12 deep dive on deploying Oracle Databases for high Availability, I wanted to provide some feedback on what hardware components are failing most frequently and which ones are less frequently. I believe I have reasonably good idea about that but I thought that providing some more objective data would be better. I couldn’t find and results of a more scientific research so I decided to organize a poll. This blog post shows the results and I promised to share it with several groups.
While doing my high availability deep dive at Collaborate 12 few weeks ago, I stated that storage replication qualifies for the cold failover licensing rules (see slide #128).During collaborate I spoke to one person at Oracle who definitely knows the rules. Simon Haslam also reached out to me by email pointing out that things might not be that rosy. I will update the slides accordingly. In any case, please do you own homework and don’t trust my conclusions here — don’t take this as a licensing advice by any means.
As the summer in many parts of the world starts, not only the snow is thawing, many bloggers are also coming out of hiatus and the database blogosphere is seeing new sensational activity. This Log Buffer Edition includes blogging tidbits from Oracle, SQL Server and MySQL. Enjoy reading Log Buffer #270.
I spent last week at Collaborate 2012 in Las Vegas and it was really great experience in many ways. I am a MySQL DBA and have been working with MySQL for most of my career, so Collaborate didn’t seem like an obvious choice. It turned out that there are so many things that I can learn from Oracle professionals and the Oracle community which can be applied in MySQL world as well. For me an indication of a good conference is when you come back inspired and full of ideas.
Pythian’s Oracle Apps DBA team recently upgraded a client’s E-Business Suite system to version 12.1.3, bringing them into compliance with Oracle’s baseline support requirements for Release 12.1 nearly one year ahead of deadline. We’d like to tell you a bit about this project — not to toot our own horn (though that’s nice too, we are kinda proud), but because it provides an ideal illustration of the power of the Pythian service delivery model, particularly as it applies to large enterprise-class projects.
There is no replacement for the documentation of the database products. There is no alternative of forums for these technologies, and also there is no alter ego for the database blogs. They add up yet another avenue to explore when the professionals need help. This Log Buffer Edition helps professional in identifying few blog posts from across the databases in Log Buffer #269.
Had a very interesting experience in my “RACing up the Miles” session this morning. There were about 70 people in the room and I hope they enjoyed the session as much as I did. I discussed a wee bit of architecture about RAC and concentrated on a very basic beginner’s primer to management activities with srvctl and crsctl.
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