Posted by Yury Velikanov on May 20, 2012
Martin Berger suggested to create this page to keep track of blog posts related SLOB IO testing. Here it is Martin ;)
If you are seriously interested to get a good understanding of your IO subsystem performance characteristics then one of the tools that you may consider for putting your system IO on stress is SLOB. See Introducing SLOB – The Silly Little Oracle Benchmark from Kevin Closson. I did and I learned a lot on my way. A bit of warning from my side – you should be ready to invest a bit of time (days in my case) to make sure that the results you are getting are reliable. Read the rest of this entry . . .
Posted by Yury Velikanov on May 19, 2012
If you are wondering what I am busy with then this post explains it.
As you may noticed I am still testing one of the Oracle systems using the SLOB framework and learning on my way. I ran several tests with the same parameters (Readers 24) and I noticed that for one reason or another awr.txt reports different runtimes: Read the rest of this entry . . .
Posted by Yury Velikanov on May 17, 2012
After completing your Oracle VM and Oracle VM Manager installation (see my previous blog posts here) you are ready to start your friendship with Oracle VM technology. However to make your life and experience even more enjoyable I would suggest you to follow a few simple steps listed bellow.
Read the rest of this entry . . .
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 .
Read the rest of this entry . . .
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 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 Yury Velikanov on Mar 28, 2012
In my previous post I described how to install Oracle VM and Oracle VM Manager on the same sandbox. However, to start playing with Oracle VM v3 you need to configure some storage to be used for new VM hosts. The problem is that Oracle states that you should allocate a full HDD for VM host storage. If you have just one HDD in your system then you are in trouble, as part of it is already occupied by the Dom0 host. Read the rest of this entry . . .
Posted by Yury Velikanov on Mar 21, 2012
Hello Friends,
This is a short blog post to let you know that I am going to give my RMAN and SCAN talks to WA OUG (AUSOUG) folks in Perth next week. Here are the details:
Where: ORACLE Australia , Level 2, 66 Kings Park Road , 6005 West Perth
When: Wednesday, March 28, 2012 07:30am – 09:00am
RSVP:By Monday 26th March , emailing vicepresident.wa@ausoug.org.au. Read the rest of this entry . . .
Posted by Yury Velikanov on Feb 1, 2012
If you are wondering why anyone would possibly need to Install Oracle VM Manager in such an unsupported way, please read my previous Oracle VM 3 related blog post.
In this post, I will share with you my experience installing OVMM 3.0.3 under OVM 3.0.3 Dom0 host, including:
- A short and sweet action plan to get it up and running ASAP
- A detailed explanation with error messages and solutions
- Clean run output
Read the rest of this entry . . .
