Posted by Yury Velikanov on May 16, 2012
This is just a quick post to share my first 3.1.1 Oracle VM Manager (OVMM) troubleshooting experience.
After the initial installation I rebooted the server, tried to access OVMM https://ovmmhost:7002/ovm/console and received the following error in a browser screen:
Unexpected error during login (com.oracle.ovm.mgr.api.exception.FailedOperationException: OVMAPI_6000E Internal Error: Connection refused Connection refused[[ < date > ), please consult logs for details. OVMAPI_6000E Internal Error: Connection refused Connection refused
< date >
Unexpected error during login (com.oracle.ovm.mgr.api.exception.FailedOperationException: OVMAPI_6000E Internal Error: Connection refused Connection refused[[ < date > ), please consult logs for details. OVMAPI_6000E Internal Error: Connection refused Connection refused date .
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Posted by Yury Velikanov on May 16, 2012
It happens to be very short blog post as installation the Oracle VM Manager 3.1.1 under Dom0 host isn’t different from installing the previous version. For all tricks that you need to use please see my Oracle VM Manager 3.0.3 under Dom0 post. Read the rest of this entry . . .
Posted by Gleb Otochkin on May 16, 2012
During last couple of month I was seeing some discussion and question in different online conferences and user groups about upgrade RAC and exadata to 11.2.0.3. The questions were mostly about upgrade procedure, timing, what can happen during the upgrade and how a system behaves after upgrade.
I’ve recently upgrade couple of exadata to 11.2.0.3 and want to share the experience. I hope this short note will help someone to make the decision, calculate estimation and prepare for maintenance. I am going to talk about upgrade from the version 11.2.0.2 BP10 to 11.2.0.3 BP2.
I. Preparation:
First, you need to read thoroughly oracle support note [ID 1373255.1] (strongly recommended as a primary guidance for the upgrade), make a general plan and calculate estimation time for every upgrade step. Most of the steps can be done in rolling mode and don’t require full downtime for the environment.
The second step is about gathering information about your current system and checking if your firmware and exadata software versions fulfill the requirements for 11.2.0.3.
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Posted by Marc Fielding on May 15, 2012
I had a chance to talk to several Oracle Database Appliance users at the annual Collaborate 2012 conference last month in Las Vegas. And a common theme in this discussions, as well as discussions with Pythian clients, is an interest in using the ODA as a large-scale consolidation platform. ODA offers all the benefits of engineered systems: fast, simple setup, single-vendor support, and pre-validated configurations. At first glance, however, the fixed non-expandable capacity of an Oracle database appliance would make it look like a poor candidate for consolidation, particularly the fixed 4TB of usable disk capacity and 24-core processing capacity.
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Posted by Yury Velikanov on May 15, 2012
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. Read the rest of this entry . . .
Posted by Yury Velikanov on May 15, 2012
NOTE: This is a copy of my yesterday’s G+ post. You can find the original over here. As 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.
Status – Work in progress. We are still working on testing and analysing the results. However there are some things that is worth to share with others to help out with your efforts. This is why I chosen to use G+ to publish some intermediate status update and possibly raise some discussion.
SLOB is The Simple Little Oracle Benchmark from +Kevin Closson.
http://kevinclosson.wordpress.com/2012/02/06/introducing-slob-the-silly-little-oracle-benchmark/
Our attention to SLOB sparked during +Alex Gorbachev and +Kevin ClossonTwitter discussion that more or less could be summarized by the following tweet:
https://twitter.com/#!/kevinclosson/statuses/200727040192823296
@alexgorbachev says to @kevinclosson: lots of the system IO bound below the CPU level so you should see similar number with Orion or SLOB. why don’t I test?
Amen! Read the rest of this entry . . .
Posted by Fahd Mirza on May 11, 2012
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.
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Posted by Marco Tusa on May 10, 2012
A calm week this time,
I was really busy on daily work, but had some spare time that I have use to do simple implementation and tests.
My work was related to Tablespace management in 5.6 and Table partition EXCHANGE, you can read the articles here .
I have also start to dig a little bit more in details on Mongo architecture, given the need to have it correctly review and implemented in parallel with MySQL installations.
As news review I was more interested in a couple of articles, as for below:
Interesting article from Vadim about SSD, more a suggested reading then able to comment.
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Posted by Alex Gorbachev on May 10, 2012
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.
The results are also in the presentation material but it might be hidden deep into 100+ slides so here is the dedicated blog with some comments on the results.
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Posted by Alex Gorbachev on May 9, 2012
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. Also Arjen Visser from Dbvisit noted to me after my session that they’ve seen Oracle sales pushing for different strategy.
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