WARNING - OLD ARCHIVES

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/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

[Xen-users] XFS, xfs_freeze, LVM and memory

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] XFS, xfs_freeze, LVM and memory
From: Wolfgang Hennerbichler <wogri@xxxxxxxxx>
Date: Mon, 11 Dec 2006 09:48:08 +0100
Delivery-date: Mon, 11 Dec 2006 00:48:31 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
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/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
Hi XEN users,

First of all: this is not really a xen-question, more an LVM+XEN question. I'm redesigning my vserver host (moving to xen), and right now I'm thinking about using XFS as the filesystem in the guests. I'm going to use lvm-snapshotting for backup, so I have to think about memory in Dom0. My backup strategy is as follows: xfs_freeze a domU, snapshot it, xfs_unfreeze it, back it up, remove the snapshot. My lvm- partitions vary in size, the biggest is about 20 gigabytes.

I have a couple of questions for those who use this combination:

* can I call xfs_freeze from dom0, or does it have to be domU that calls that command? (I guess so, as the domU kernel needs to freeze the FS, but probably I'm wrong) - this would imply that my domU needs to have the exact same timing with Dom0 (freeze inside domU, snapshot in dom0, unfreeeze in domU)...
* how much memory (I'm pretty low on memory) should I allocate for dom0?

Thanks for any thoughts,

wogri

--
wogri@xxxxxxxxx
http://www.wogri.com
http://www.einradfilm.at


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

<Prev in Thread] Current Thread [Next in Thread>
  • [Xen-users] XFS, xfs_freeze, LVM and memory, Wolfgang Hennerbichler <=