[CentOS-virt] xen+drbd Question

[Lorenzo Quatrini]

Aleksandar Ivanisevic ha scritto:
> 
> Hi,
> 
> after i've read this post
> 
> http://article.gmane.org/gmane.comp.emulators.xen.user/33157/match=re+xen+drbd
> 
> 
> I've given up on xen and drbd disks for now, and am using phy:, but
> you'll have to give it drbd device not the volume
> 
> disk = [ "phy:/dev/drbd14,xvda,w" ]
> 
> Unfortunately, that means that you'll have to handle setting drbd
> devices primary/secondary yourself. I've written a wrapper script around
> drbdadm+xm and it has been working more or less ok.
> 
> That also means no live migration since drbd device needs to change
> state sometime mid-migration, but save/move/restore has been working ok
> for me with really minimal downtimes.
> 
> There is also a primary/primary setup with newer drbd but it was awfully
> unstable when i was testing it a few moths ago, most of the time it was
> crashing and taking down the complete cluster with it.
> 
> regards,
> 
Hi Aleksandar,

I was just starting doing some test following this article:

http://fghaas.wordpress.com/2007/09/03/drbd-806-brings-full-live-migration-for-xen-on-drbd/

So if you say that doesn't work I'll give up on this and I'll go directly to
Openvz (actually proxmox)

Thanks

Lorenzo