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Move the EM12c repository database
I have made a little mistake creating a RAC database for the OEM 12c repository-I now need a little more lightweight solution, especially since I’m going to do some fancy failover testing with this cluster soon! An 11.2.0.3 single instance database without ASM, that’s what I’ll have! Now how to move the repository database? I…
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The tale of restoring the OCR and voting files on Linux for RAC 11.2.0.2
As part of a server move from one data centre to another I enjoyed working in the depths of Clusterware. This one has been a rather simple case though: the public IP addresses were the only part of the package to change: simple. One caveat though was the recreation of the OCR disk group I…
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The art of getting security right-an observation
A number of high-profile hacks recently (and not so recent) has caught my attention. Well I thought, not such a big problem-I don’t have a PS3 and hence don’t have an account that can be hacked. I was still intrigued that the hackers managed to get hold of the passwords. I may be wrong here,…
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Installing Oracle Enterprise Manager 12c on OL 5.7
I have been closely involved in the upgrade discussion of my current customer’s Enterprise Managers setup from an engineering point of view. The client uses OEM extensively for monitoring, alerts generated by it are automatically forwarded to an IBM product called Netcool. Now some of the management servers are still on 10.2.0.5 in certain regions,…
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Adding another node for RAC 11.2.0.3 on Oracle Linux 6.1 with kernel-UEK
As I have hinted at during my last post about installing Oracle 11.2.0.3 on Oracle Linux 6.1 with Kernel UEK, I have planned another article about adding a node to a cluster. I deliberately started the installation of my RAC system with only one node to allow my moderately spec’d hardware to deal with a…
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oracleracsig.org presentation October 27 2011
For all of those who aren’t tired of listening to me yet there is good news: I am presenting a webinar at http://www.oracleracsig.org on October 27th 2011. I will most likely be around 17:00 UK time as the meetings start 09:00 PST. I agreed with the committee that we have performed a lot of nitty-gritty…
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Installing Grid Infrastructure 11.2.0.3 on Oracle Linux 6.1 with kernel UEK
Installing Grid Infrastructure 11.2.0.3 on Oracle Linux 6.1 Yesterday was the big day, or the day Oracle release 11.2.0.3 for Linux x86 and x86-64. Time to download and experiment! The following assumes you have already configured RAC 11g Release 2 before, it’s not a step by step guide how to do this. I expect those…
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Oracle 11.2.0.3-can’t be long now!
Update: well it’s out, actually. See the comments below. However the certification matrix hasn’t been updated so it’s anyone’s guess if Oracle/Red Hat 6 are certified at this point in time. Tanel Poder has already announced it a few days ago, but 11.2.0.3 must be ready for release very soon. It has even been spotted…
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RAC and HA SIG meting Royal Institute of British Architects September 2011
I have been looking forward to the RAC & HA SIG for quite some time. Unfortunately I wasn’t able to make the spring meeting which must have been fantastic. For those who haven’t heard about it, this was the last time the SIG met under its current name-as Dave Burnham, the chair pointed out in…
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Collecting and analysing Exadata cell metrics
Recently I have been asked to write a paper about Exadata Flash Cache and its impact on performance. This was a challenge to my liking! I won’t reproduce the paper I wrote, but I’d like to demonstrate the methods I used to get more information about what’s happening in the software. Hardware The Exadata Flash…
