On Tue, Apr 19, 2011 at 3:21 PM, Nicholson, Brad (Toronto, ON, CA) <bnicholson@xxxxxx> wrote: >> -----Original Message----- >> From: pgsql-performance-owner@xxxxxxxxxxxxxx [mailto:pgsql-performance- >> owner@xxxxxxxxxxxxxx] On Behalf Of Laurent Laborde >> Sent: Tuesday, April 19, 2011 8:37 AM >> To: pgsql-performance@xxxxxxxxxxxxxx >> Subject: Re: postgresql random io test with 2 SSD Kingston >> V+100 500GB in (software) Raid1 >> >> If we use them (unlikely), recovery in case of power outage isn't a >> problem, as we will use it on slave database (using Slony-I) that can >> be created/destroyed at will. >> And, anyway, our slave have fsync=off so the battery won't change >> anything in case of power outage :) > > Are these on the same UPS? If so, you have a failure case that could cause you to lose everything. Oh, not at all. We're doing balancing/switch/failover between 2 different datacenter. We can maintain (somewhat degraded) operation if one of the datacenter fail :) -- Laurent "ker2x" Laborde Sysadmin & DBA at http://www.over-blog.com/ -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
