How to start with HA
Thu, 15 Feb 2001 12:11:33 +0000
On 2001.02.15 10:00:00 +0000 Lars Marowsky-Bree wrote:
> On 2001-02-15T09:21:00,
> Pascal MiQUET <firstname.lastname@example.org> said:
> Has any of you considered to actually include some text in your mails?
Lars, to answer your question, I'll put some text here :)
There are three types of clusters, I'll summarise them here and give you
some links to look at. This list deals with one type of cluster, so asking
such a general question in here may not get you the results you want.
HA (High availability Cluster) - This is a cluster that allows a host (or
hosts) to become Highly Available, that means if one node goes down (or a
service on that node goes down) another node can pick up the service or
node and take over from the failed machine.
Computing Cluster - This is what a beuwolf cluster is. It allows
distributed computing over off the shelf components. In this case it is
usually cheap ia32 machines.
Load balancing clusters - This is what the Linux Virtual Server project
does. In this scenario you have one machine with load balances requests to
a certain server (apache for example) over a farm of servers.
All of these sites have howtos etc on them. For a general overview on
clustering under Linux, look at the Clustering-HOWTO.
I hope this helps.