Category: Computers

Howto and other interesting information on computers systems and programming.

OVM 3 Mass Upgrade

ovm 3, upgrade

Doing a mass upgrade on OVM 3.1.1 using Cisco UCS Manager. 10 servers at a time!

Weblogic startup scripts using “UpStart”

I previously wrote on how to create weblogic startup scripts using standard init.d scripting. There is an even easier way to do things now. Why not use upstart, which is an event based replacement for the /sbin/init daemon. Simply create a file “wlnode.conf” and put it in the /etc/init directory. This will start the Weblogic …

Continue reading

40″ Monitor – Black Friday Special

Well, it’s Black Friday 2013 and I managed to only spend a little. But what I got was so cool, i had to write about it… I spend a lot of time in front of my computer, more that I would like to admit. My job basically ensures I am in front of a computer …

Continue reading

Slow internet speeds at Starbucks

As I sit here in Starbucks, waiting for my 1MB file to download, i thought I would write this small blurb on how the AT&T / Starbucks union has failed. It seems that AT&T has turned down the dial on the throughput that is allowed on its wireless networking. I have experienced this on at …

Continue reading

Enable VisualVM for remote monitoring of Java

Step 1: get jstatd running. If jstatd is not running,  create a file called jstatd.all.policy with the following contents: grant codebase “file:${java.home}/../lib/tools.jar” { permission java.security.AllPermission;}; Start jstatd as follows: nohup jstatd -J-Djava.security.policy=/path/to/your/jstatd.all.policy & Step 2: Start Remote jvisualvm   /usr/java/jdk1.7.0_25/bin/jvisualvm