| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | sfpug(at)postgresql(dot)org |
| Subject: | Re: Postgresql Question |
| Date: | 2012-12-03 18:07:10 |
| Message-ID: | 50BCEA4E.3010202@agliodbs.com |
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| Lists: | sfpug |
On 12/2/12 11:20 PM, Christophe Pettus wrote:
>
> On Nov 30, 2012, at 4:52 AM, Bijelic, Aleksandra (Lexi) wrote:
>
>> Hi I have a question, Is possible to create a shared-storage postgresql server cluster? I found some mix responses online and need to know before we download the software for our company use.
>
> Hi,
>
> If you mean a single storage subsystem with multiple PostgreSQL instances accessing it in parallel, the answer is no. Each PostgreSQL instance expects to have exclusive access to the underlying storage.
On the other hand, Postgres-XC fills a lot of the same needs which
Oracle RAC does, without the single-point-of-failure which shared
storage represents.
http://postgresxc.wikia.com/wiki/Postgres-XC_Wiki
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com
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