[no subject]

> Depending on your heartbeat solution this can happen as easily as
> a server being to busy/low on memory,.. to send a heartbeat signal.
> With a bad heartbeat solution your redundant server setup can 
> be less reliable then a single server.
Yup!

> A good solution is the "shoot them in the head" approach:
> If server B thinks server A is dead -> B cuts the power to A.
> Now B can be sure that A is dead ;-)
Yes, that's how we do it.  We cut power via an external device
of our own proprietary design (done by hardware genius and ALEr,
Mike Panetta).

Our initial one is a 240V unit for Europe.

Best regards,

Bob Toxen, CTO
Fly-By-Day Consulting, Inc.
"Your expert in Firewalls, Virus and Spam Filters, VPNs,
Network Monitoring, and Network Security consulting"
<a  rel="nofollow" href="http://www.verysecurelinux.com";>http://www.verysecurelinux.com</a>       [Network &amp; Linux/Unix Security Consulting]
<a  rel="nofollow" href="http://www.realworldlinuxsecurity.com";>http://www.realworldlinuxsecurity.com</a> [My 5* book: &quot;Real World Linux Security&quot;]
<a  rel="nofollow" href="http://www.verysecurelinux.com/sunset.html";>http://www.verysecurelinux.com/sunset.html</a>                    [Sunset Computer]
bob at verysecurelinux.com (e-mail)
+1 770-662-8321  (Office: 10am-6pm M-F US Eastern Time)

&gt; On Tue, 2004-09-14 at 08:50, Kevin O'Neill Stoll wrote:
&gt; &gt; Hi all,
&gt; &gt; 
&gt; &gt; I have been doing some research about either:
&gt; &gt; a failover pair of fileservers, possibly load-balanced
&gt; &gt; across the pair
&gt; &gt; or
&gt; &gt; a high-availability load-balanced cluster of file servers
&gt; &gt; 
&gt; &gt; I just wanted to know if anyone was already working with a
&gt; &gt; particular setup or product that they have had success
&gt; &gt; with. I have been doing all the basic reading / research
&gt; &gt; that I can find via google, tldp, and linux-ha.org.
&gt; &gt; 
&gt; &gt; I have already found OpenGFS, a Networked Raid 1 type
&gt; &gt; setup, and supposedly RedHat's cluster management package
&gt; &gt; has a solution available.
&gt; &gt; 
&gt; &gt; Any thoughts would be greatly appreciated.
&gt; &gt; 
&gt; &gt; =====
&gt; &gt; Kevin Stoll
&gt; &gt; <a  rel="nofollow" href="http://kevinstoll.com/";>http://kevinstoll.com/</a>
&gt; &gt; 
&gt; &gt; OpenSource Software...FREE!
&gt; &gt; Angering Bill Gates...priceless.
&gt; &gt; ============================================================


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<ul><li><em>From:</em> kevinostoll at yahoo.com (Kevin O'Neill Stoll)</li></ul></li>
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