Best resource to put locate constraint against? (Was part of [Linux-HA] Cannot create group containing drbd using HB GUI)

[Andrew Beekhof]

On 5/9/07, Doug Knight <dknight at wsi.com> wrote:
> Revisiting a question I never got an answer to (changed Subject from
> "Cannot create group containing drbd using HB GUI"):

sorry, must have missed it - that thread did get quite big :-)

against the outter-most resource is generally best unless you have a
specific reason not to.  so in this case, the master_slave resource.

>
> > One other thing, did you see the question I raised about the Place
> > constraint I've been using? I have one defined against the drbd
> > master_slave resource ID, and the question was whether this was the
> > right resource, or should I make the constraint against postgres? And if
> > against postgres, how does the preference for a particular node get
> > communicated from the group postgres is in (along with Filesystem and IPaddr) back to the drbd master_slave
> > resource?
> >
> > Thanks,
> > Doug
> >
>
>
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