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-devel

Re: [Xen-users] How to share data between guest domains

To: Todd@xxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] How to share data between guest domains
From: "Molle Bestefich" <molle.bestefich@xxxxxxxxx>
Date: Mon, 20 Mar 2006 13:45:07 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx
Delivery-date: Mon, 20 Mar 2006 12:46:31 +0000
Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Q2VRO87Qa8yiiud5vOkR3brgiL2BTZ64mQ8cMoP1c96hdvO/RMP5JHJS07rNqn+3gapfUxQfl/mRDptqw1aU4emi4bSRTtXfoICDdFFeD1Kcnnfn5eSt7Xioo0OotHpkdKIb5i58zhzszKhxBa2A5EaykyxAV/zma4tyQW8XrCQ=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <2967.67.184.68.1.1142737228.squirrel@xxxxxxxxxxx>
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>
References: <1142710436.15319.1.camel@localhost> <441C7352.7030401@xxxxxxx> <441CB16E.6090901@xxxxxxxxxxx> <200603182119.31607.javier@xxxxxxxxxxx> <2967.67.184.68.1.1142737228.squirrel@xxxxxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
Todd D. Esposito wrote:
> However, on that note, I wonder if you could mount the same file system,
> say something like /usr, into multiple domU's READ ONLY.

That works for me.

What doesn't work is mounting that file/device READ/WRITE in one domU
to update the filesystem.  For that, I have to take down *all* domUs. 
Not good...

(When I try I get a vbd: error saying "already in use".)

(I know about caching and that I need eg. a cluster-aware filesystem
to do this.)

I've spent a couple of hours hunting through various Xen source files.
 There's a lot of Python functions that are only 3-5 lines long and
which does little else than calling the next function, which makes it
very hard to figure out what's going on :-/.

Could one of you devel guys please let me know where I need to go to
remove this silly limitation? :-)

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

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