[Xen-devel] VM backup problem

To:	xen-users@xxxxxxxxxxxxxxxxxxx, Xen-devel@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-devel] VM backup problem
From:	"Jinesh M.K" <mkjinesh@xxxxxxxxx>
Date:	Fri, 22 Jul 2011 11:04:11 +0530
Cc:
Delivery-date:	Thu, 21 Jul 2011 22:35:10 -0700
Dkim-signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=99+j5T/O5AUtyMMm/86CPafidBNmTbjjQz2phDLtUXg=; b=X+MyTHenB3SHqYC3rBpQGTZg+b1Paw6eiOilK2VUVtRXZFbimnEFI9Eh7impDJIg+g FzMHpSsD0MXAOk+duiTT7Xja05KsCKFHMcSpq/KSKZXJSFVQ6CZzLCtNkjP75iPTDIgL MRWscW6sDy4PnXG7XdY5krnmYQTuCNwdSdHcc=
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to:	<CAKx7_gx79iwzc_72D2zSaLMzBuBxDLppFy=rHWNJ3vASEE_4Og@xxxxxxxxxxxxxx>
List-help:	<mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id:	Xen developer discussion <xen-devel.lists.xensource.com>
List-post:	<mailto:xen-devel@lists.xensource.com>
List-subscribe:	<http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe:	<http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References:	<CAKx7_gx79iwzc_72D2zSaLMzBuBxDLppFy=rHWNJ3vASEE_4Og@xxxxxxxxxxxxxx>
Sender:	xen-devel-bounces@xxxxxxxxxxxxxxxxxxx

Hi,

I use following steps for LV backup.

                            lvcreate -L 5G -s -n lv_snapshot /dev/VG_XenStorage-7b010600-3920-5526-b3ec-6f7b0f610f3c/VHD-a2db885c-9ad0-46c3-b2c3-a30cb71d83f8
                            lv_snapshot created

This command worked properly
Then issue kpartx command

                         kpartx -av /dev/VG_XenStorage-7b010600-3920-5526-b3ec-6f7b0f610f3c/lv_snapshot

But this command not return any value.

                         vgscan
                        Reading all physical volumes. This may take a while...
Found volume group "VG_XenStorage-7b010600-3920-5526-b3ec-6f7b0f610f3c" using metadata type lvm2

Here vgscan not show lv_snapshot

Then use mount command, system ask for file system type, I given like this

                       mount -t ext3 /dev/VG_XenStorage-7b010600-3920-5526-b3ec-6f7b0f610f3c/lv_snapshot

       mount: wrong fs type, bad option, bad superblock on /dev/VG_XenStorage-0cc224af-d9ed-ff0d-7d9d-b7c2a7057011/lv_snapshot
                     missing codepage or other error
      In some cases useful info is found in syslog - try
                    dmesg | tail or so

Any help...

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

WARNING - OLD ARCHIVES

xen-users

[Xen-devel] VM backup problem