From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phil Turmel Subject: Re: broken raid level 5 array caused by user error Date: Tue, 10 Nov 2015 20:03:32 -0500 Message-ID: <564293E4.6080402@turmel.org> References: <3c05d813e42324cdf95989784f6d7b17@pingofdeath.de> <56426499.8000205@turmel.org> <564284F5.9080409@turmel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <564284F5.9080409@turmel.org> Sender: linux-raid-owner@vger.kernel.org To: Mathias Mueller Cc: Linux raid , linux-raid-owner@vger.kernel.org List-Id: linux-raid.ids On 11/10/2015 06:59 PM, Phil Turmel wrote: >>> For now, use data offset 2048 for all of them. >> >> output of all eight combinations: > > Hmmm. Very strange. Let's see the dump of the start of the data area of all four partitions: > > for x in /dev/sd[efgh]1 ; do echo -e "\n$x\n" ; dd if=$x skip=2048 count=16 2>/dev/null |hexdump -C ; done I just noticed your response to this didn't make it to the list. It was 108k. If you do it again with count=8 -- that'll be enough for everyone to understand my other reply. Phil