From mboxrd@z Thu Jan 1 00:00:00 1970 From: Janek Kozicki Subject: Re: Redundancy check using "echo check > sync_action": error reporting? Date: Sun, 16 Mar 2008 16:14:51 +0100 Message-ID: <20080316161451.0d17fd22@szpak> References: <47DD2CD7.2090802@tuxes.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <47DD2CD7.2090802@tuxes.nl> Sender: linux-raid-owner@vger.kernel.org Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids Bas van Schaik said: (by the date of Sun, 16 Mar 2008 15:21:11 +0100) > As we speak, I'm trying to debug a real weird type of filesystem > corruption in a quite complex layered system with networking involved: AFAIK, even for the simplest case where corruption happens between a head and a disk platter during write operation - the RAID has no way to detect that. Unless it discovers later that the checksum on another disk is wrong, and it is automatically updated to reflect the corrupted data. Does it produce a message during resync in such case? Someone here should be able to answer this. -- Janek Kozicki |