Getting Started with Amazon EC2
EC2 is all about the “elastic compute cloud.”
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UCARP allows a couple of hosts to share common virtual IP addresses in order to provide automatic failover.
April 28, 2008
April 2, 2008
How Does DRBD work?
Each device (DRBD provides more than one of these devices) has a state, which can be ‘primary’ or ’secondary’. On the node with the primary device the application is supposed to run and to access the device (/dev/drbdX). Every write is sent to the local ‘lower level block device’ and to the node with the device in ’secondary’ state. The secondary device simply writes the data to its lower level block device. Reads are always carried out locally.
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What is DRBD
DRBD is a block device which is designed to build high availability clusters. This is done by mirroring a whole block device via (a dedicated) network. You could see it as a network raid-1.
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March 16, 2008
Remove duplicate files on a Mac - software review
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November 13, 2007
RPM - Redhat Package Manager…
What package owns a file:
rpm -ql /path/to/file
What files belong to a package
rpm -ql package_name
Verifying a package (note that this will be silent if there are no errors)
rpm -V package_name
http://www.tfug.org/helpdesk/linux/rpm.html
