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Archive for the 'Open Source' Category

Such devious spam

Thursday, October 6th, 2011

Today I received this rather devious spam. Invoke education, children, libraries, and hope that someone will link to their site. I’m not sure *why* they want this particular site promoted. There’s not much useful information there. No attempt to sell anything. I’m confused.
Perhaps this was legit. But then, […]

ZFS details - just in case

Tuesday, May 31st, 2011

I use a ZFS array for backups. The data is first copied to this array, and later copied to tape. This post contains some information which might be useful should I need to replace one of the drives in the array.
We have 10 HDD in this system.
Two are used in a gmirror for […]

PGCon 2011 begins

Sunday, May 15th, 2011

PGCon 2011 has started. The formal schedule says Tuesday, but people have already started to arrive in Ottawa and many more start their journeys today.
Late last week, there was another flurry of registrations coming in. I saw some today. I expect another peak on Monday as last minute decisions are made.
There have […]

PGCon - we’re ready. Are you?

Friday, May 6th, 2011

I’ve been in Ottawa for a week now, preparing for both BSDCan 2011 and for PGCon 2011. Pretty much everything is done. The t-shirts are ordered. The lanyards, tote bags, and Google goodies are ready to go.
The hard stuff is done. What’s left is mostly logistics, coordination, timing, and organization.
And for […]

PGCon 2011 is just two weeks away

Monday, May 2nd, 2011

PGCon is just two weeks away. Based on previous years, half of you register between today and the conference. I don’t know why… it just happens that way. Yes, it means our attendance will double in the next two weeks.
PGCon 2011 will be on 19-20 May 2011 at University of Ottawa, with […]

PGCon 2011 update

Tuesday, April 19th, 2011

PGCon is an annual conference for users and developers of PostgreSQL, a leading relational database, which just happens to be open source. PGCon is the place to meet, discuss, build relationships, learn valuable insights, and generally chat about the work you are doing with PostgreSQL. If you want to learn why so many people are […]

Differential backup didn’t use scratch pool

Sunday, April 10th, 2011

Today is the first Sunday since I started using a scratch pool with Bacula. I was disappointed to see an email asking for a tape to be mounted. Why? With four tapes in the scratch pool, I shouldn’t be asked for a tape. Something is wrong. But there is no directive […]

ZFS benchmarking ideas

Tuesday, April 5th, 2011

I’m about to double the RAM in my ZFS system. It will go from 4GB to 8GB.
Right now, I have:

real memory = 4294967296 (4096 MB)
avail memory = 4100382720 (3910 MB)

I’m not interested in any big extensive benchmarks. I just want something simple. Hence:

$ cd /storage/bonnie/
[dan@kraken:/storage/bonnie] $ ls -l
total 0
[dan@kraken:/storage/bonnie] $ […]

Getting Bacula running on my MacBook

Saturday, April 2nd, 2011

I recently acquired a MacBook Pro. Things are going well. I’m using Time Capsule, but I also want to use Bacula. I went with MacPorts:

sudo port install bacula +client_only

The install looked something like this:
[dan@dent:~] $ sudo port uninstall bacula
—> Deactivating bacula @5.0.3_2+client_only
—> Cleaning bacula
—> Uninstalling bacula @5.0.3_2+client_only
—> Cleaning […]

Speakers and travel

Monday, March 14th, 2011

The following query pulls back the speakers and their travel:

SELECT distinct S.name, S.email, CP.conference_person_id, arrival_from,
arrival_to, arrival_number, arrival_date, arrival_time,
departure_from, departure_to, departure_number, departure_date, departure_time
[…]