High Availability with Open Source In the article High Availability with Open Source , Josh Kuo looks at three of the popular Open Source projects to implement High Availability redundancy (failover): Heartbeat keepalived CARP The article talks about where each of these three excels and some implementation ideas. Josh also mentions the DRBD utility to sync two remote filesystems to aid in an advanced High Availability setup. When I build a network or a system, I try my best to make sure that everything is as redundant as possible: redundant power supplies, RAID for the drives in case of a hard drive failure, backup routes in OSPF in case someone trips over the network cable... you get the idea. But what happens if the CPU overheats in one of the web servers and causes it to crash? Or what if someone yanks the network cable from your LDAP server? Or if someone flips the switch and accidentally turns off the accounting database server? If you incorporate High Availability (HA) into you...
You are reading the blog of Moonshi Mohsenruddin, a Singapore citizen and evangelist of Information Technology and how IT can be leverage to solve real world problems. I am a Problem Solver, a Systems Guy who believes in Sharing thru Giving, Learning by Doing and applying knowledge towards creating Economic Freedom.