From mboxrd@z Thu Jan 1 00:00:00 1970 From: Janek Kozicki Subject: raid10 on three discs - few questions. Date: Sun, 3 Feb 2008 23:50:43 +0100 Message-ID: <20080203235043.3dbb6433@szpak> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Hi, Maybe I'll buy three HDDs to put a raid10 on them. And get the total capacity of 1.5 of a disc. 'man 4 md' indicates that this is possible and should work. I'm wondering - how a single disc failure is handled in such configuration? 1. does the array continue to work in a degraded state? 2. after the failure I can disconnect faulty drive, connect a new one, start the computer, add disc to array and it will sync automatically? Question seems a bit obvious, but the configuration is, at least for me, a bit unusual. This is why I'm asking. Anybody here tested such configuration, has some experience? 3. Another thing - would raid10,far=2 work when three drives are used? Would it increase the read performance? 4. Would it be possible to later '--grow' the array to use 4 discs in raid10 ? Even with far=2 ? thanks, -- Janek Kozicki |