[Pacemaker] Properly fencing Postgres

[Serge Dubrouski]

On Fri, Mar 5, 2010 at 7:56 AM, Martin Aspeli <optilude+lists at gmail.com> wrote:
> Hi Serge,

Hello -

>
>>> I don't know if the pgsql RA can support "cold standby"
>>> instances.
>>>
>>
>> In my opinion "cold standby" is a server has has access to the data
>> files where PostreSQL is down but can be brought up any time. pgsql RA
>> does exactly that if other resources proved access to the data. What
>> pgsql RA doesn't do is data synchronization in a master/slave way. But
>> as far as I understand this is not required here.
>
> Well, that was certainly the way I envisaged it working, with data
> synchronisation being provided by DRBD + OCFS2, and data integrity ensured
> by STONITH with the Dell DRAC.
>
> That said, if there are better solutions, I'd love to hear about them.

This is the right solution, in my opinion, for the LAN installation.
Data replication id good for geographically distributed installations,
like primary site and DR site.


>
> Martin
>
>
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-- 
Serge Dubrouski.