Tag Archives: DRBD

UPDATE: High Availability for the Ubuntu Enterprise Cloud (UEC) – Cloud Controller (CLC)

UPDATE So I finally had the time to write the OCF Resource Agent for the Cloud Controller as promised. It is an early Resource Agent and currently is tested for CLC’s running in Ubuntu ONLY (UEC). But first what is an OCF Resource Agent? An OCF RA is an executable script that is used to […]

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My Thesis…

For all of you who wanted to take a look to my thesis (Design of a model to implement High Availability Web Servers, an overview here)… you can donwload it from here: http://roaksoax.files.wordpress.com/2009/03/thesis.pdf Btw… it is in Spanish. 🙂

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DRBD and NFS

Hey all. Sorry for the delay in posting this tutorial, I’ve been pretty busy and I finally had some time to finish it. Enjoy :). Well, as you may know, in previous posts (Post 1, Post 2) I’ve showed you how to install and configure DRBD in an active/passive configuration with failover, automatically, using Heartbeat. […]

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Installing DRBD on Hardy Part 2.

As you know, in a previous post I showed how to install DRBD in Hardy Heron, in an active/passive configuration. Now, I’m gonna show you how to install and configure Heartbeat to automatically monitor this active/passive configuration, and provide High Availability. This means I’ll show you how to integrate DRBD in a simple Heartbeat V1 […]

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Installing DRBD On Hardy!

DRBD (Distributed Replicated Block Device) is a technology that is used to replicate data over TCP/IP. It is used to build HA Clusters and it can be seen as a RAID-1 implementation over the network. As you may all know, the DRBD kernel module has now been included into Hardy Heron Server Edition’s kernel, so […]

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