Re: Standalone synchronous master
Joshua D. Drake <jd@commandprompt.com>
From: "Joshua D. Drake" <jd@commandprompt.com>
To: Stephen Frost <sfrost@snowman.net>, Andres Freund <andres@2ndquadrant.com>
Cc: Bruce Momjian <bruce@momjian.us>, Amit Kapila <amit.kapila16@gmail.com>,
Hannu Krosing <hannu@2ndquadrant.com>, MauMau <maumau307@gmail.com>,
Tom Lane <tgl@sss.pgh.pa.us>, Kevin Grittner <kgrittn@ymail.com>,
Heikki Linnakangas <hlinnakangas@vmware.com>,
Simon Riggs <simon@2ndquadrant.com>,
Rajeev rastogi <rajeev.rastogi@huawei.com>,
pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2014-01-10T22:59:55Z
Lists: pgsql-hackers
On 01/10/2014 02:57 PM, Stephen Frost wrote: > Yes, if you have a BBU that memory is authoritative in most cases. But > in that case the argument of having two disks is pretty much pointless, > the SPOF suddenly became the battery + ram. > > > If that is a concern then use multiple controllers. Certainly not > unheard of- look at SANs... > And in PostgreSQL we obviously have the option of having a third or fourth standby but that isn't the problem we are trying to solve. JD -- Command Prompt, Inc. - http://www.commandprompt.com/ 509-416-6579 PostgreSQL Support, Training, Professional Services and Development High Availability, Oracle Conversion, Postgres-XC, @cmdpromptinc "In a time of universal deceit - telling the truth is a revolutionary act.", George Orwell