If you are system Administrator, you know at times you need to send out a broadcast message to all logged in users like when you need to reboot a server and hence warning users to log off or face losing their work and data. How do you do it?Read More →
Once a disk/lun is no longer required, it is a good practice to remove the disks cleanly from the system and tidy up. What more? this can be done without a server reboot.Read More →
I recently came across a situation where Apache Tomcat cannot start as there was no memory available to allocate to the Java heap (-Xms 1024) when the server had 8GB of physical memory installed. We all know the Linux Kernel borrows unused memory on the system for Disk Cache and releases it when an application needs it. Sadly, things didn’t work out this time and I blame it on Java.Read More →
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