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December 2012

Sharing a Kindle account

I have discovered that sharing a Kindle account with family members can cause Amazon to prompt me with the oddest reading suggestions:

Oaktable Sunday 2012

8-bit Oak Roots
Bernie Dugggs, Imagine Software

There’s a reason so many Oakies are about the same age. We were the keen users of the first popular computers. The British version of that experience was based on cheap and available 8-bit home computers that unleashed people’s latent passion, talent and ingenuity in over-coming platform limitations.
Bernie Dugggs will take a nostalgic look at his personal history as a developer of commercial ZX Spectrum computer games for Imagine, Ocean and Odin and show how relevant the experiences and lessons learned have remained throughout a career in software


Friday Philosophy: It’s Not What you Know – It’s What you are Getting To Know.

This has been a good but tiring week. It started with the UKOUG TEBS conference where I saw lots of people I know, a few who I didn’t but now do and I had good times in pubs and restaurants. One evening culminated in my singing part of “Two out of Three ain’t bad” in the style of a munchkin with Nial Litchfield in a pub at 1am, which I am sure he woud rather forget about – so if you know him, ask him about it. For me that was the indicator to go lie down in the dark and sleep. Irrespectve of drunken singing, I must had talked about 20 topics with 40 people over the conference, exchanging ideas, tricks and war stories.

Adding disks to VMware Workstation 8 on the fly on RHEL 6

Although this post is primarily written for users of VMware Workstation 8 it is applicable for any RedHat 6 clone and adding disks with single path on the fly. Multipathing requires additional setup in dm-multipath or the vendor multipathing software which I won’t cover here. A quick hint though: you need to set disk.EnableUUID = “TRUE” in your VM’s config file for scsi_id to return a value.

The situation is common: you created a virtual machine and need more storage. Hopefully you created it using LVM which would allow you to add the new disk to an existing volume group followed by a resize operation of the logical volume which is short on space. But before you can do this you have to add a new LUN to your setup-here is how you can do this without rebooting the VM.

First I recommend you install lsscsi (for convenience, not really necessary) and the sg3_utils:

UKOUG 2012

The UKOUG 2012 conference was a rather short affair for me this year as I was only there for 1 day of it.

During the Sunday I was at my nephew’s birthday party. In the evening I returned to Birmingham in time to make it to the Oracle ACE dinner. Big thanks to Debra Lilley for organizing it and to the Oracle ACE program for sponsoring the event. I used the opportunity to ask a number of questions about ADF and WebLogic. I’m still a newbie and since I seem unable to distance myself from the subject, I figured I need to know a bit more. :)

Monday was my first and only day at the conference. The lineup was like this:

UKOUG day 3

Today’s task – chairing the Unconference from 9:00 to 15:00 (though the first slot hasn’t been booked by anyone and, at this stage, I don’t think it will be).

Here’s the current agenda:

Innovation bottleneck: The database

2012 marked the beginning of a fundamental shift in the responsibilities of the CIO. As Gartner analyst Mark McDonald recently wrote on his blog, after years of delivering ‘more for less’, CIOs began to refocus on delivering growth through innovation – building the business rather than putting it on a diet.
However, most CIOs know they won’t suddenly see their treasure chest filled with new cash, and will have to look for other ways to deliver innovation.
One of the most effective ways to free up time and money is to remove the complexity and duplication that has been created over the years and puts a strain on resources.


Timetable for Tuesday:

  • 9:00, Hall 8b – Are you Syre you need Exadata (presenting)
  • 9:55, Media Suite – Global Resource Management, by Joel Goodman (chairing)
  • 11:15, Hall 1 – SAN Performance problem, What performance problem, by Chris Dunscombe (audience)
  • 12:10, Hall 1 Foyer – Living with Engineered Systems (roundtable)
  • 13:15, Exhibition Hall Balcony – Autumn and the AWR (presenting)
  • 13:55, Hall 8b - How the Query Optimizer Learns from its Mistakes, by Chris Antognini (chairing)
  • 14:30, Exhibition Hall Balcony – Optimizer Round Table (with Maria Colgan)
  • 16:00 – UKOUG Council Stand in the Exhibition Hall
  • 17:15, Hall 9 – Brining Oracle Database Identity Management back to the Drawing Board by Gregory Guillou (chairing)
  • 18:30, Evening Social Events (and I’ll need them).

Exadata Storage Indexes Part V: Warming Up (Here Come The Warm Jets)

As I mentioned in a previous post, there are a number of Similarities between Storage Indexes and Database Indexes. One of these similarities is the “warming up” process that needs to take place before indexes become “optimal” after either the Storage Server (in the case of Storage Indexes) or the Database Server (in the case […]

Enkitec at UKOUG 2012


Here’s the list of Enkitec’s UKOUG conference sessions – I will be delivering 3 sessions, including a 2 hour Exadata hacking session!

We are also sponsoring the ping-pong table (woo-hoo! :) and will give away 3 super-cool Sphero balls … that should be fun! ;-)

See you soon!