From mboxrd@z Thu Jan 1 00:00:00 1970 From: Reindl Harald Subject: Re: RAID Recovery Date: Mon, 6 Mar 2017 16:36:55 +0100 Message-ID: <16fc386e-230e-9dbf-3b47-11400b3defc9@thelounge.net> References: <936e84af-f190-3541-bdf8-eaa0c42d2ddc@websitemanagers.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <936e84af-f190-3541-bdf8-eaa0c42d2ddc@websitemanagers.com.au> Sender: linux-raid-owner@vger.kernel.org To: Adam Goryachev , linux-raid@vger.kernel.org List-Id: linux-raid.ids Am 06.03.2017 um 16:07 schrieb Adam Goryachev: > Hi all, > > I'm trying to assist a friend to recover their RAID array, it consists > of 4 drives, most likely in RAID10. It was a linux based NAS (AFAIK). I > would really appreciate any tips or suggestions... > > First, the bad news: > > mdadm --misc --detail /dev/sd[abcd] > mdadm: /dev/sda does not appear to be an md device > mdadm: /dev/sdb does not appear to be an md device > mdadm: /dev/sdc does not appear to be an md device > mdadm: /dev/sdd does not appear to be an md device it's not uncommon to use partitions instead of whole drives that below are two RAID10 and one RAID1 on four 2 TB drives and so /dev/sd[-d] are not an md-device [root@rh:~]$ cat /proc/mdstat Personalities : [raid1] [raid10] md1 : active raid10 sda2[0] sdd2[2] sdb2[3] sdc2[1] 30716928 blocks super 1.1 512K chunks 2 near-copies [4/4] [UUUU] md0 : active raid1 sda1[0] sdd1[2] sdb1[3] sdc1[1] 511988 blocks super 1.0 [4/4] [UUUU] md2 : active raid10 sda3[0] sdd3[2] sdb3[3] sdc3[1] 3875222528 blocks super 1.1 512K chunks 2 near-copies [4/4] [UUUU]