[Ocfs2-users] OCFS2 and upgrades

[Mark Fasheh]

Ok, "Sunil the nimble and quick" figured this all out while I was still
mashing at the keyboard  :)
	--Mark  (who needs to work on his reflexes... or drink more coffee)

On Fri, Dec 14, 2007 at 10:25:18AM -0800, Mark Fasheh wrote:
> On Fri, Dec 14, 2007 at 11:55:50AM -0600, Eric Ross wrote:
> > * One was is running Ubuntu Dapper, and the other is running Ubuntu Gutsy 
> > (upgraded from Dapper)
> >
> > * modinfo ocfs2 on both boxes lists version number: 1.3.3
> 
> What kernel versions are those machines running?
> 
> 
> > My questions:
> >
> > * It's possible to mount an ocfs2 filesystem across a gutsy box and a 
> > dapper box at the same time?
> 
> There's a network protocol version which occasionally gets bumped if there's
> protocl-related bug fixes or new features added. So long as your two Ocfs2
> versions speak the same protocol, you should be fine. If they speak
> different ones, you'll get a message to the console indicating so when the
> 2nd node fails to mount.
> 
> The other thing that may prevent a mount is if heartbeat/network timeouts
> are different on the nodes, but that's easily fixed by just setting the
> timeouts consistently accross the cluster.
> 
> 
> > * Will an on disk format upgrade that needs to take place?
> 
> The only time you should ever have to upgrade your disk format is to get
> access to new features. All new versions of Ocfs2 know how to read and write
> all old versions of the disk format.
> 	--Mark
> 
> --
> Mark Fasheh
> Senior Software Developer, Oracle
> mark.fasheh at oracle.com
> 
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--
Mark Fasheh
Senior Software Developer, Oracle
mark.fasheh at oracle.com