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Re: [Xen-users] lock domU file backed vbd's?
| To: | "Wayde Nie" <xen@xxxxxx> |
|---|---|
| Subject: | Re: [Xen-users] lock domU file backed vbd's? |
| From: | "Todd Deshane" <deshantm@xxxxxxxxx> |
| Date: | Thu, 14 Aug 2008 10:18:03 -0400 |
| Cc: | Xen Users <xen-users@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Thu, 14 Aug 2008 07:18:43 -0700 |
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| Reply-to: | deshantm@xxxxxxxxx |
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On Fri, Aug 8, 2008 at 6:00 PM, Wayde Nie <xen@xxxxxx> wrote: > Hi Everyone, > > Does anyone have suggestions on the best way to implement some sort of > interlock so that a VM with a file-backed vbd can only be started on one > node at any given time? I haven't had much luck with Google or the > archive searches so far... > > Some background: > > I've got a 2 node setup based on Debian Etch and the stock Debian Xen > 3.0.3. Each node has local storage connected together in an > active-active drbd8 cluster with osfs2 and I'm using file backed vdb's > on the shared storage for my domU's. > > I can start a domU on either node and live migration is working great. > Unfortunately, there doesn't appear to be any locking done on the file > backed vbd's which makes it a bit to easy to start a VM on both nodes at > the same time (trashing the disk file in the process...) > > Any pointers would be appreciated! > A thread on the topic: http://xen.markmail.org/search/?q=device+lock#query:device lock+page:1+mid:ouugxur56hqikqty+state:results Cheers, Todd -- Todd Deshane http://todddeshane.net check out our book: http://runningxen.com _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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