From mboxrd@z Thu Jan 1 00:00:00 1970 From: Goswin von Brederlow Subject: Re: Question about raid robustness when disk fails Date: Wed, 27 Jan 2010 10:04:13 +0100 Message-ID: <87vden2a2a.fsf@frosties.localdomain> References: <1262972385.8962.159.camel@kije> <87hbqeyua9.fsf@frosties.localdomain> <7d86ddb91001261619kbb77697t2660e5b8cc44535d@mail.gmail.com> <4877c76c1001262022p369eac60s639d87cad743ff94@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: In-Reply-To: <4877c76c1001262022p369eac60s639d87cad743ff94@mail.gmail.com> (Michael Evans's message of "Tue, 26 Jan 2010 20:22:56 -0800") Sender: linux-raid-owner@vger.kernel.org To: Michael Evans Cc: Ryan Wagoner , Goswin von Brederlow , Tim Bock , linux-raid@vger.kernel.org List-Id: linux-raid.ids Michael Evans writes: > Why doesn't the kernel issue a pessimistic alternate 'read' path (on > the other drives needed to obtain the data) if the ideal method is > late. It would be more useful for time-sensitive/worst case buffering > to be able to customize when to 'give up' dynamically. That is a verry good question. I look forward to seeing patches for this from you. :) I think it isn't done because nobody has bothered to write the code yet but maybe I'm wrong and it would make the code too complicated. MfG Goswin