On Sun, 2009-03-15 at 01:48 +0100, Marco Colombo wrote: > Joshua D. Drake wrote: > > On Sat, 2009-03-14 at 05:25 +0100, Marco Colombo wrote: > >> Scott Marlowe wrote: > > > >> Also see: > >> http://lkml.org/lkml/2008/2/26/41 > >> but it seems to me that all this discussion is under the assuption that > >> disks have write-back caches. > >> "The alternative is to disable the disk write cache." says it all. > > > > If this applies to raid based cache as well then performance is going to > > completely tank. For users of Linux + PostgreSQL using LVM. > > > > Joshua D. Drake > > Yet that's not the point. The point is safety. I may have a lightly loaded > database, with low write rate, but still I want it to be reliable. I just > want to know if disabling the caches makes it reliable or not.
I understand but disabling cache is not an option for anyone I know. So I need to know the other :) Joshua D. Drake -- PostgreSQL - XMPP: jdr...@jabber.postgresql.org Consulting, Development, Support, Training 503-667-4564 - http://www.commandprompt.com/ The PostgreSQL Company, serving since 1997 -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
