From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id ACE8A29DF7 for ; Sun, 16 Nov 2014 13:35:09 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 836D78F8037 for ; Sun, 16 Nov 2014 11:35:06 -0800 (PST) Received: from mout.web.de (mout.web.de [212.227.17.11]) by cuda.sgi.com with ESMTP id vw53FhGlLhA7WXrG (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sun, 16 Nov 2014 11:35:01 -0800 (PST) Received: from [192.168.64.62] ([79.210.59.39]) by smtp.web.de (mrweb102) with ESMTPSA (Nemesis) id 0LuuS5-1XyvMx3ABd-0105JZ for ; Sun, 16 Nov 2014 20:34:59 +0100 Message-ID: <5468FC60.10901@web.de> Date: Sun, 16 Nov 2014 20:34:56 +0100 From: Markus Rhonheimer MIME-Version: 1.0 Subject: Virtual Block device resize corrupts XFS List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============7554149956649655748==" Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com This is a multi-part message in MIME format. --===============7554149956649655748== Content-Type: multipart/alternative; boundary="------------060309030503090409030408" This is a multi-part message in MIME format. --------------060309030503090409030408 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hi, I am running Centos 7 and have created a virtual block device with ZFS (ZVOL). I put XFS onto the block device without partitioning it. This worked very well as storage disk for a VM. A few days ago I wanted to increase the size of the block device, but accidently decreased it by 1 TB (from 7 to 6). I found out about it and immediately increased the size of the drive to 8 TB afterward. The XFS partition can still be mounted and I can list the files on it, but xfs_repair -n says: "/Sorry/, /could not find valid secondary superblock" /Is there the possibility to rescue some files? kind regards Markus --------------060309030503090409030408 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit Hi,

I am running Centos 7 and have created a virtual block device with ZFS (ZVOL). I put XFS onto the block device without partitioning it.

This worked very well as storage disk for a VM.

A few days ago I wanted to increase the size of the block device, but accidently decreased it by 1 TB (from 7 to 6). I found out about it and immediately increased the size of the drive to 8 TB afterward.

The XFS partition can still be mounted and I can list the files on it, but xfs_repair -n says: "Sorry, could not find valid secondary superblock"

Is there the possibility to rescue some files?

kind regards

Markus
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