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Showing posts from February, 2005
Publish your site with forrest (XML+XSLT)
If you have ever maintained a web site you know that pure html is difficult to mantain and impossibile to change without doing it all again from scratch (even if you use css).
XML once again is the solution to all of your (web) problems. By using XML and a couple of XSLT sheets you can easily skin your site whilst keeping the content in one separate, safe, upgradeable place.
If you want a tool that will make you started quick go have a look at Apache Forrest.
[shameless plug] My web site was made with forrest: www.unicolet.org

Saturday morning live: SLES9+DRBD upgrade

I have not worked on saturday mornings (at least officially) since 2001, but today I planned an upgrade of a SLES 9 cluster to the latest patchlevel. The cluster uses drbd to replicate two disks, used mainly for samba sharing.

My plan was to try a rolling upgrade, even tough nobody is at work today, so that I could get some experience on this and avoid other saturday mornings live ;-) . From what I understand drbd can be upgraded on one node at the time as the protocol is compatible between minor versions and since the upgrade was from 0.7.pre to 0.7.5 I thought: ok, I can do it.
Believe it or not it is not true: the pre thing in the original SLES9 is not compatibile with the one that comes from online update. So I had to upgrade both and then reboot. The whole process took about one hour (add some time for safety checks on partitions, etc) and I was really disappointed that even in the suse support portal this was not mentioned at all!
Except for that drbd did not force a full resync …

Goodbye mainframe

Today I have presentiated at the shutdown of a Bull DPS 9000 mainframe. It will be replaced by an Oracle RAC cluster on linux and hp hardware. My first work as an IT person was creating a suite of shell scripts that essentially fetched data via ftp from the mainframe and loaded them in an Oracle database. That was some 5 years ago and thise scripts more or less worked for all that time.

The scripts were scheduled to run on a BULL Escala machine (it featured a powerPC processor) running AIX. Those were my first tries with vi in an horrible zsh enviroment only! The escala will be shutdown very soon too.

Rest in peace...