This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


[Xen-users] Re: Will this work? (Zeroing free space)

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Re: Will this work? (Zeroing free space)
From: Aleix Dorca <adorca@xxxxxx>
Date: Fri, 21 Aug 2009 11:41:55 +0200
Delivery-date: Fri, 21 Aug 2009 02:43:16 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <20090821093723.C548E3602B@xxxxxxxxxxxxx>
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
References: <20090821093723.C548E3602B@xxxxxxxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
Thanks for your comments. I see that Martii you do almost exactly as I do. It's good to know it works as intended.

I've also tried sdelete on a small VM and the backup has dropped from 5.6Gb to 3.4Gb on a 30Gb partition disk. Quite impressive.

I've just also found "zerofree". A linux utility I didn't know about that zeros free space on ext2/3 filesystems. The device has to be unmounted though.

Thanks again.


Xen-users mailing list

<Prev in Thread] Current Thread [Next in Thread>