From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Fjellstrom Subject: Re: recommended way to add ssd cache to mdraid array Date: Fri, 11 Jan 2013 19:44:33 -0700 Message-ID: <201301111944.33921.thomas@fjellstrom.ca> References: <201212212357.19292.thomas@fjellstrom.ca> <201301111151.44384.thomas@fjellstrom.ca> <50F08F96.1050909@hardwarefreak.com> Reply-To: thomas@fjellstrom.ca Mime-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <50F08F96.1050909@hardwarefreak.com> Sender: linux-raid-owner@vger.kernel.org To: stan@hardwarefreak.com Cc: Chris Murphy , linux-raid Raid List-Id: linux-raid.ids On Fri Jan 11, 2013, Stan Hoeppner wrote: > On 1/11/2013 12:51 PM, Thomas Fjellstrom wrote: > >> It's not but as Stan writes it may not be preferred for your > >> application. > > > > Hm, ok, it is in my mount line, so I'll try it with that off. Though I > > would be interested in hearing from Stan why it may not be good. > > You should not do this. This parameter is not a toggle switch intended > to be flipped on/off at will, but changed only once and left there. Makes me wonder why they are mount options if they aren't meant to ever be changed? > Never change XFS parameters willy-nilly without knowing the > consequences. And currently you certainly do not know them. > > I don't have time for the detailed explanation. Ask on the XFS list. Alright, thanks for your help :) -- Thomas Fjellstrom thomas@fjellstrom.ca