[SLUG] April meeting minutes

[dakota.son]

The Siouxland Linux Users Group
Meeting Minutes
Thursday, April 15, 2010
6:30 p.m.
Siouxland Libraries - Oak View Branch Room 3

Alex Dean gave an overview of DRBD and Heartbeat, two high availability
tools for Linux.

DRBD is used to manage a single data set mirrored on two computers, one
computer acting as the primary server, and the other as secondary. The
computers can be in separate server farms, if desired. Heartbeat works
with DRBD to switch the secondary server to primary quickly and
automatically, if the primary server should fail.

Alex went through the configuration files for both programs, and
outlined situations in which both servers may be running, but they each
think the other host has disappeared from the network. This situation
usually occurs more frequently than the loss of a server, he said.

In the Q-and-A session that followed his talk, he outlined a number of
ways that DRBD and Heartbeat could be used with MySQL database servers.

His recommended resource for DRBD is www.drbd.org/users-guide. The
recommendations for heartbeat are www.linux-ha.org/HeartbeatTutorials,
http://people.linbit.com/~florian/heartbeat-users-guide/, and
www.clusterlabs.org.

Alex works for IPS MeteoStar in Denver, Colo., a company that provides
high availability solutions for weather data worldwide to government and
industry. See http://weather.meteostar.com/ or
www.meteostar.com/company/news.html for more information about IPS
MeteoStar.

Topic Suggestions
We gleaned a few more meeting topics from the group:
* Little Utilities for non-geeks;
* Geotagging your digital photographs; and
* Regular (monthly) install-fest / help sessions for new Linux users.

Twelve people attended the April meeting.

May Meeting
Steve and Rob will present May's topic on VoIP - using the internet for
making phone calls. They have been tweaking their Asterisk servers for a
few months, and should be ready to go at 6:30 p.m. on Thursday, May 20,
at the Oak View Branch meeting room 3.

Free Linux live CDs will be available for folks who want to try Linux
for the first time.

June topic - TBA

July - No formal meeting: Barbecue or Pizza Party

Future topics - General help, video streaming, FreeNAS, Utilities for
Non-geeks

--Submitted by Glenn

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