<div dir="ltr">Thank you very much for this, looks like a good read. <div>Will provide feedback :)<br><div><br></div><div>Aly</div><div><br></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Jan 6, 2014 at 11:11 AM, Digimer <span dir="ltr"><<a href="mailto:lists@alteeve.ca" target="_blank">lists@alteeve.ca</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Almost exactly two years ago, I released the first tutorial for building<br>
an HA platform for KVM VMs. In that time, I have learned a lot, created<br>
some tools to simplify management and refined the design to handle<br>
corner-cases seen in the field.<br>
<br>
Today, the culmination of that learning is summed up in the "2nd<br>
Edition" of that tutorial, now called "AN!Cluster Tutorial 2".<br>
<br>
<a href="https://alteeve.ca/w/AN!Cluster_Tutorial_2" target="_blank">https://alteeve.ca/w/AN!Cluster_Tutorial_2</a><br>
<br>
These HA KVM platforms have been in production for over two years now in<br>
facilities all over the world; Universities, municipal governments,<br>
corporate DCs, manufacturing facilities, etc. I've gotten wonderful<br>
feedback from users and all that real-world experience has been<br>
integrated into this new tutorial.<br>
<br>
As always, everything is 100% open source and free-as-in-beer!<br>
<br>
The major changes are:<br>
<br>
* SELinux and iptables are enabled and used.<br>
* Numerous slight changes made to the OS and cluster stack configuration<br>
to provide better corner-case fault handling.<br>
<br>
* Architecture refinements;<br>
** Redundant PSUs, UPSes and fence methods emphasized.<br>
** Monitoring multiple UPSes added via modified apcupsd<br>
** Detailed monitoring of LSI-based RAID controllers and drives<br>
** Discussion on hardware considerations for VM performance based on<br>
anticipated work loads<br>
<br>
* Naming convention changes to support the new AN!CDB dashboard[1]<br>
** New alert system covered with fault and notable event alerting<br>
<br>
* Wider array of guest OSes are covered;<br>
** Windows 7<br>
** Windows 8<br>
** Windows 2008 R2<br>
** Windows 2012<br>
** Solaris 11<br>
** FreeBSD 9<br>
** RHEL 6<br>
** SLES 11<br>
<br>
Beyond that, the formatting of the tutorial itself has been slightly<br>
modified. I do think it is the easiest to follow tutorial I have yet<br>
been able to produce. I am very proud of this one! :D<br>
<br>
As always, feedback is always very much appreciated. Everything from<br>
typos/grammar mistakes, functional problems or anything else is very<br>
valuable. I take all the feedback I get and use it to helping make the<br>
tutorials better.<br>
<br>
Enjoy!<br>
<br>
Digimer, who now can now start the next tutorial in earnest!<br>
<br>
1. <a href="https://alteeve.ca/w/AN!CDB" target="_blank">https://alteeve.ca/w/AN!CDB</a><br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Digimer<br>
Papers and Projects: <a href="https://alteeve.ca/w/" target="_blank">https://alteeve.ca/w/</a><br>
What if the cure for cancer is trapped in the mind of a person without<br>
access to education?<br>
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</font></span></blockquote></div><br></div>