[Pacemaker] Two resource nodes + one quorum node

[Andrey Groshev]

12.06.2013, 03:45, "Andrew Beekhof" <andrew at beekhof.net>:
> On 12/06/2013, at 4:48 AM, Michael Schwartzkopff <misch at clusterbau.com> wrote:
>
>>  Am Dienstag, 11. Juni 2013, 22:33:32 schrieb Andrey Groshev:
>>>  Hi,
>>>  I want to make Postgres cluster.
>>>  As far as I understand, for the proper functioning of the cluster must use a
>>>  quorum (ie, at least three nodes).
>>  No. Two nodes are enough. See: no-quorum-policy="ignore".
>>>  But if the databases are large - it is
>>>  too expensive.
>>>  One master, two slave, and in addition backup.
>>>  So I'm trying to make the schema with one master, one slave, and one node
>>>  only for a quorum.
>>  One master and one slave should be enough.
>
> But three nodes is better.

Yes, that's better. But in a good data storage - 20 TB will not be superfluous.

>
>>  Be sure to have fencing configured.
>>
>>  --
>>  Dr. Michael Schwartzkopff
>>  Guardinistr. 63
>>  81375 München
>>
>>  Tel: (0163) 172 50 98
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