[Linux-HA] resource group design question

[Daniel X Moore]

Hi All,

We have resource groups that contain multiple resources that sometimes 
need to be handled individually, and sometimes as a group.

When starting or stopping a resource group, we want to be able to 
perform the start/stop operation on all the members at the same time (ie 
not stop a, stop b, stop c ... but stop a,b&c together.

When adding a member to a group, we want to be able to start the 
individual member and be able to synchronize with the completion of the 
removal.

When removing a member, we want to be able to remove just that member 
and be able to synchronize with the completion of the removal.

We also want to be able to update (reload) a set of members.

So far, I have two approaches:

	- have a single resource with a list of members.
	- have a resource group with a individual resources for members

The first approach makes it easy to deal with all members together, the 
second with individual members.

Can anyone suggest a way to get a combination of these behaviours?

cheers

-- 
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  Daniel Moore                              dxm at sgi.com
  Engineering Manager: AppMan + HA          Phone:  +61-3-9963-1957
  SGI Australian Software Group             Mobile: +61-4-1360-4720
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