Re: [cosmos-dev] MDR and Data Manager Use Cases - installing/uninstallin

[Mark D Weitzel <weitzelm@xxxxxxxxxx>]

Jimmy,

I think this is getting to the question
of "How do we manage the MDRs"--what are their management interfaces.
 "off-line" and "on-line" sound to me to be the
same as "start" "stop".  

I would propose that we use these operations
instead.  If we wanted, we could also tie this into the "Operational
Status" capability of WSDM.  When you "stop" the MDR
(and I'd argue this is something that could apply to all Data Managers,
then Operational Status is "Unavailable".  

One other question is that if you have
something "stopped", how do you start it again?  At a minimum,
this means that the capabilities that we are creating need to check if
they should process the request.  The other end of the spectrum is
that you have two endpoints, one for the management aspect and one for
the cmdbf work.  Stopping in this case would mean that you do not
permit requests in to the second enpoint, possibly through a container
mechanism.

You also have in here the notion of
being able to administer this through the UI.  The current COSMOS
ui is 'non-operation' oriented.  This would be the first place that
we would introduce the notion of controlling a resource.  

-mw  
 
_______________________________________________________________________________________________________________
Mark Weitzel | STSM | IBM Software Group | Tivoli | Autonomic Computing
| (919) 543 0625 | weitzelm@xxxxxxxxxx

[cosmos-dev] MDR and Data Manager Use Cases -        installing/uninstalling and online/offline

Mohsin, Jimmy

to:

Cosmos Dev

01/08/08 11:30 PM

Sent by:

cosmos-dev-bounces@xxxxxxxxxxx

Please respond to Cosmos Dev <cosmos-dev@xxxxxxxxxxx>

---

Dear Cosmonauts,
 
We have a notion of installing (and uninstalling)
MDR’s and Data Managers.  However, till now, we have not talked about
the operational status of the MDR’s / DM’s in http://wiki.eclipse.org/COSMOS_Use_Cases
 
So now the question: will we support the
notion of MDR’s & DM’s being online / offline?  I have TENTATIVELY
added one use case in the MDR Enablement section…
 
=============================================================
Use Case: Administrator takes an MDR "offline"
or "online"
Actor: System Administrator 
Description: The Administrator wants to take
an MDR "offline", perhaps for maintenance or for any other reason.
Alternatively, she may wish to bring the MDR back online. 
1.   Administrator opens the COSMOS
UI, which displays all the data managers and MDR's 
2.   Administrator selects the MDR she
wishes to take offline (or online) 
3.   Administrator updates the status
of the MDR 
Enhancements: TBD 
=========================================================
 
Thanks,
Jimmy Mohsin
Cell   +1-609-635-1703
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