[Pacemaker] Dependency Trees

[Donald Stahl]

> It's of course possible to have that filesystem group and then reference
> the group in dependencies, which can simplify some setups.
True- but then you run into the problem of not being able to have
groups of groups. So if I create a group for my filesystems- I can't
create another group that includes all Oracle resources because those
would include the filesystems group.

> An unordered group can achieve this, no? (I've not tested it.)
Yes- I realized yesterday that I could set ordered and collocated to
false on a group to achieve one of my requirements.

Thanks,
-Don