Re: [Xen-users] lockfile?

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> Why would you put your config files on a shared drive? Shouldn't they be
> configuration files, local to each host?

I think the goal is to have the VM virtual disks on the shared drive and have 
some means of preventing the same VM getting instantiated on multiple 
systems - whether using a single shared config, or a copy of the config on 
each box - by using a lock file.

This would be a useful feature, given that multiple VMs accidentally sharing a 
vdisk is going to corrupt it in short order.

Cheers,
Mark

> On 10/11/07, Mark Williamson <mark.williamson@xxxxxxxxxxxx> wrote:
> > No, there's nothing like this currently available.
> >
> > However, the commercial products based on Xen (or other VMMs, in fact)
> > may include support for stuff like this.
> >
> > Some of the open source management apps people are working one might
> > either
> > support this now or in the future, I guess.  You could always register a
> > feature request with one or more of them and see how they respond.
> >
> > Cheers,
> > Mark
> >
> > On Wednesday 10 October 2007, Tomoki Taniguchi wrote:
> > > is there a locking mechanism in xen
> > > to prevent 2 xen server from running the same domU config
> > > located on a shared drive?
> > >
> > > i wish that i you could specify a lock file in the domU config file,
> > > then xm create configfile
> > > will check to see if the lockfile specified in the config file exists.
> > > if it exists, it exits out with an error.
> > > if it does not exist, it creates the lockfile
> > > and starts the domU.
> > >
> > > does something similar exits?
> > >
> > > Tomoki
> > >
> > > _______________________________________________
> > > Xen-users mailing list
> > > Xen-users@xxxxxxxxxxxxxxxxxxx
> > > http://lists.xensource.com/xen-users
> >
> > --
> > Dave: Just a question. What use is a unicyle with no seat?  And no
> > pedals! Mark: To answer a question with a question: What use is a
> > skateboard? Dave: Skateboards have wheels.
> > Mark: My wheel has a wheel!
> >
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-users



-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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