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Security, Forecasting Oracle Performance and Some stuff to post… soon…
I’ve been busy this February “playing around/studying” on the following: 1) Oracle Security products (Advance Security Option, Database Vault, Audit Vault, Data Masking, etc. etc.). Well, every...
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Single Instance and RAC Kernel/OS upgrade
This document will serve as a guide for the Kernel and OS upgrade activities for Single Instance on ASM using raw devices RAC with ASM (using ASMlib) and OCFS2 Upgrading the Kernel and OS is easy and...
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OS Thread Startup
Recently I encountered a performance problem scenario where a simple sqlplus “/ as sysdba” took about 2minutes to finish, this is critical to the client’s business because they have a local C program...
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Advanced Oracle Troubleshooting by Tanel Poder in Singapore
When I first saw that Tanel will conduct his seminar in Singapore, I told myself that I would even spend my own money just to be on that training! I’ve already read performance books like Optimizing...
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Understanding the SCN
For the DBAs who want to have a refreser on SCN (system change number), this article article is very nice and explained clearly written by Sandeep Makol. It started on where you ‘ll find info for SCN...
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Yast on OEL
Lately I’ve been playing with Enterprise Manager Grid Control 10.2.0.4 on OEL 4.4 (I’ll upgrade this to 10.2.0.5 soon) and I’ve had a couple of product presentation and demo focusing on the Database...
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Diagnosing and Resolving “gc block lost”
Last week, one of our clients had a sudden slow down on all of their applications which is running on two node RAC environment Below is the summary of the setup: - Server and Storage: SunFire X4200...
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Lucky to find it…
Earlier this month I was able to bought the book “Sun Performance and Tuning: Java and the Internet (2nd Edition)” for only 190pesos at some bookstore Amazon sells it for 2400pesos.. It’s a pretty old...
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Knowing the trend of Deadlock occurrences from the Alert Log
Recently, my client deployed a new application and had this intermittent “Deadlock Storm” … A trace file was sent and I was able to pinpoint the cause of the deadlock and the session that caused it....
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RHEV (Red Hat Enterprise Virtualization) is out!!! :)
The company I work for, SQL*Wizard, is a RedHat Advanced Business Partner so I was lucky to get my hands dirty on the BETA release of RHEV, also a pleasure to work with Siva Shunmugam (Sr. Solutions...
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RAC system load testing and test plan
Yesterday I was browsing through some docs in Metalink regarding RAC on Windows… then again came across the “RAC Starter Kit and Best Practices” notes… RAC Assurance Support Team: RAC Starter Kit and...
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50+ SQL Performance Optimization scenarios
Before the year ends I’d like to share some good stuff… I have never seen a huge compilation of SQL tuning tips or rewrite scenarios (with test cases) and got them only on OracleFans forum… ooops… so...
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Workload characterization using DBA_HIST tables and kSar
Been busy these past few days.. Well, this post is about taking advantage of the built in data store that started in 10gR1.. yeah it’s AWR, and it’s very much like a “Statspack on steroids” (got that...
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Craig Shallahamer is now blogging!
Craig Shallahamer is now blogging… check out his initial post here! Earlier I had a few mail exchanges with him and got to check his new work.. called the Stress Identifier. Hmm.. so how it will be...
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DEVCON Luzon 2010
I just recently I became a member of the PSIA Tech Council… The company I’m working for is a member of PSIA which makes up 90% of the country’s software sector promoting the growth and global...
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“Ideas build off ideas”… making use of Social Networking sites
In this post (which has been looong overdue :p ) I’ll show you how you could make use of Social Networking Sites to make knowledge sharing and meeting people more fun. As you can see from the...
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My Personal Wiki – karlarao.tiddlyspot.com
Our brain does not work in a linear or list-like manner (yeah.. not like the guy on the right). From the textbooks and blogs that we read everyday we are all aware that print is laid out in a series...
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Seeing Exadata in action
Last week I was able to attend a 3 day exadata workshop conducted by performance engineers from Singapore. It was supposed to be a 5 day workshop with hands on labs but everything was squeezed...
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Oracle Mix – OOW 2010 Suggest-A-Session
I hope it’s not too late. I just finished my Suggest-A-Session on Oracle Mix titled “Mining the Oracle Database AWR repository for Capacity Planning“, this might be of interest to you… below is the...
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The “Not a Problem” Problem and other related stuff
It’s been a while since I visited the Sun Video RSS feed and I found some interesting videos related to performance that are worth sharing and something you could watch over a big cup of coffee.. First...
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