[Linux-HA] dependencies from resourcies

[Andrew Beekhof]

On 2/27/07, Matteo Rossini <matteo.rossini at tesys-spa.it> wrote:
>
> > if you want something non-linear, then you cant use groups
> >
> > you'll need to create the ordering constraints yourself. ie.
> >       <rsc_order id="order1" from="B" action="start" type="after" to="A"/>
> >       <rsc_order id="order2" from="D" action="start" type="after" to="A"/>
> >       <rsc_order id="order3" from="C" action="start" type="after" to="B"/>
> >
> > i don't know how you create these in the GUI.
> >
> It's possible add these line with a command (by not editing manually
> configuration file)?
> And if it is not possible, after modify the file, I need to type
> /etc/rc.d/heartbeat reload (on both nodes) or restart or other?

cibadmin will let you update a running cluster.  no restart/reload needed.

> > do they all need to run on the same node?
> all all no, but 90% of resources yes (some resource have not dependencies)

again, if you use groups then it's "all all".  if thats not what you
want, then that is another reason not to use groups