[Linux-HA] Resources failing to start takes down all HB resources

[Ragnar Kjørstad]

On Wed, Mar 21, 2007 at 07:44:54PM -0600, Serge Dubrouski wrote:
> Usually resources are combined into groups if there is no reason to
> run them separately, like IP address, Filesystem and Database server.
> There is no reason to keep IP address up if Database that should
> provide service on that IP is down.
> 
> In your case if resource A, B and C are independent of each other
> probably they shouldn't be combined into a group at all?

The reality is a bit more complex than this example, but for simplicity
let's just say that that B depends on A and C depends on B, but A and B
provide useful services by themselves.

The more advanced examples includes things like multiple services using
the same shared filesystem.

-- 
Ragnar Kjørstad
Software Engineer
Scali - http://www.scali.com
Scaling the Linux Datacenter