Ardent Performance Computing
Jeremy
Lessons From Rural Africa
It has been nine months since I’ve written here. Needless to say, a lot has happened! First, my family was living in Africa for three months earlier this year while I did some tech work at an NGO hospital. Second, upon our return I decided to join the good people at Pythian. I’m not moving … Continue reading
Making Simple Performance Charts
Before I dive into this blog post, quick heads up for anyone attending UKOUG: on Tuesday only, I’ll be hanging out with some very smart people from the IOUG RAC Special Interest Group in the “gallery” above the exhibition hall. We’re ready to help anyone run a RAC cluster in a virtual environment on their … Continue reading
RAC Attack in OTN Lounge at OOW11
Want to get your hands on a key technology in both the Exadata Database Machine and the newly announced Oracle Database Appliance? If you’ll be at OpenWorld – in just 11 days – then the IOUG RAC SIG is putting together a special event for you! (You might have already heard about this on Twitter … Continue reading
Performance Tuning for Oracle Developers
One of my recent customers was a company with a somewhat large warehouse (around 60TB) on Oracle 10gR2. The system was using RAC, though it was a fairly simple setup: two nodes, very large AIX LPARs, workload manually partitioned between them and somewhat evenly balanced. The most important demand of their business is a large … Continue reading
Developer Access To 10046 Trace Files
Lets suppose you are a DBA at a large company. You have some great developers, and they’re learning all about how to turn on full logging of their code through the 10046 database trace. They just learned how to use this data in summary form to find out – at a very detailed level – … Continue reading
Finally on Twitter
Overheard in an IRC chat room (Freenode#oracle) this morning… [24 May 11 09:30] * cheboygan: glad to see that someone read the blog post though. at least i know one person read it. [24 May 11 09:30] * rizzo: it got re-tweeted a lot last week [24 May 11 09:30] * rizzo: get yourself on … Continue reading
RAC Attack – Oracle Cluster Database at Home
First of all, the RAC Attack deep dive at Collaborate went great – thanks to everyone who participated! The room was full (20 participants) and I got evaluations from about half of them. Here’s a summary of the eval results: 100% class met expectations, would recommend to others 66% easy to follow, could use skills … Continue reading
BYO Oracle RAC on EC2
Over the past year or so I’ve had a number of conversations about running Oracle RAC on Amazon’s EC2 cloud platform. Chet Justice had suggested a long time ago that I try it, but I never quite found the time. Last fall at the Oak Table Symposium in Michigan, Jeremiah Wilton told me he hadn’t … Continue reading
Binding DBLINK to a Network Interface
Just thought I’d do a quick post on this one; came out of a conversation about a month or two ago. We had a single-instance database running on a failover cluster (RHCS). A database link existed for a related database and the connection had to pass through a firewall. The problem was the firewall: it … Continue reading
Large ASM Adoptions and Lessons Learned
Seems like December came quickly this year… and UKOUG is only one week from Monday! This will be my first year attending UKOUG – and I will be giving a new presentation called “Large Scale ASM Adoptions and Lessons Learned.” I was personally involved in a very large ASM adoption project and I’m also talking … Continue reading
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contact: schneider @ ardentperf.com
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