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Re: Re: Debian: recommended kernel [message #46284 is a reply to message #46283] Wed, 09 May 2012 12:43 Go to previous messageGo to previous message
Roman Haefeli is currently offline  Roman Haefeli
Messages: 9
Registered: May 2012
Junior Member
On Wed, 2012-05-09 at 12:54 +0200, Aleksandar Ivanisevic wrote:
> Roman Haefeli <reduzent@gmail.com>
> writes:
>
>
> [...]
>
> > We have a HA cluster with corosync/pacemaker running, which manages the
> > CTs which are running on an NFS export shared across all nodes. As the
> > HA layer makes sure to not run duplicate instances of CTs, there seems
> > to be no reason to have NFS locking enabled.
>
> How do you do STONITH in openvz? I hope you are doing it, because
> thats the only thing that prevents corruption in the split brain
> situations,

We use SBD (Storage Based Death)

> now that you've turned off locking (i.e. fencing).

Turning on locking wouldn't prevent data corruption in case of a split
brain situation as for most files no lock is acquired.

Roman

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