Hi Praveen,
Thanks for the information, I assume by ‘reboot’ you mean restart the process?

thanks
—
tony

On Feb 20, 2014, at 6:30 AM, praveen malviya <[email protected]> wrote:

> 
> On 20-Feb-14 1:57 AM, Tony Hart wrote:
>> Hi Praveen,
>> 
>> Thanks for the explanation.  Maybe I can re-phrase the question in terms of 
>> processes rather than SAF entities.  I want to have processes A,B and E run 
>> on card1 and C,D on card2 with the same failover/revert behavior I described 
>> below.  How might I sent up the mapping of processes (each process performs 
>> a distinct function) to SG’s, SU’s etc to achieve that?
> With current OpenSAF implementation, one can solution can be imagined.
>  1)All processes will be  modeled as a  separate 2N application.
>  2)saAmfSURank can be configured to set initial distribution of 
> assignments amond the SUs in the same application.
>  3)Component representing the process (sayA) will perform PG tracking 
> and will be aware of node leaving and joining the cluster.
>  4) As soon as a active component gets PG tracking callback for other 
> component got the standby role because of  node, hosting that 
> component(actually SU), reboot.
>      it will perform si-swap for its SI to swap the role.
> 5) CLM can be used to monitor node related events.
> 
> 
> Thanks
> PRaveen
> 
>> thanks,
>> —
>> tony
>> 
>> On Feb 19, 2014, at 1:58 AM, praveen malviya <[email protected]> 
>> wrote:
>> 
>>> In 2N model only one SU (say SU1) will be active for all SIs and another
>>> SU(say SU2) will be standby for all SIs.
>>> So even if 5 SUs are present, one SU1 will be active and another SU2
>>> will standby on behalf of all the SIs in the system.
>>> Other SUs are referred as spare SUs.
>>> 
>>> Let us suppose SU1 hosted on card1 is active for SI1, SI2,SI3 ....
>>> and SU2 hosted on card2 is standby for SI1,SI2, SI3....
>>> If card1 reboots, then standby SU2 will become active on behalf of all
>>> the SI1,SI2,SI3 ....
>>> and others pare SU3 will become new standby.
>>> Now if card1 again comes up SU1 will not be given any role on behalf of
>>> all the SIs because SU2 is active and SU3 is standby for all SI1,Si2,SI3....
>>> 
>>> 
>>> Thanks
>>> Praveen
>>> On 18-Feb-14 6:25 PM, Tony Hart wrote:
>>>> 2N  (saAmfSgtRedundancyModel=1)
>>>> 
>>>> On Feb 18, 2014, at 7:17 AM, praveen malviya <[email protected]> 
>>>> wrote:
>>>> 
>>>>> On 17-Feb-14 6:27 PM, Tony Hart wrote:
>>>>>> Suppose I have two (identical) server cards in a system and I have 5 SUs 
>>>>>> (A,B,C,D,E) that each have an active and standby instance.  By default 
>>>>>> all the active instances run on card 1 and all standby on card 2.
>>>>> Please tell which redundancy model is being used?
>>>>> 
>>>>> Thanks,
>>>>> Praveen
>>>>>> What if two of these (C and D say) are heavy CPU users when in the 
>>>>>> active state and I’d like to have their active instances automatically 
>>>>>> assigned to the other card from A,B and E.  So card1 hosts active 
>>>>>> instances for A,B and E and card2 hosts active instances for C and D 
>>>>>> (the standby instances are oppositely assigned).
>>>>>> 
>>>>>> Next if card2 is removed I’d like all the active instances to revert to 
>>>>>> card1 (A,B,C,D,E).
>>>>>> 
>>>>>> Then if card2 is re-inserted I’d like the original assignments to be 
>>>>>> re-instanted (card1=A,B,E and card2=C,D).
>>>>>> 
>>>>>> Similarly for card1 insert/re-insert.
>>>>>> 
>>>>>> Is this possible with openSAF?
>>>>>> 
>>>>>> thanks
>>>>>> —
>>>>>> tony
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