[Lustre-discuss] Upgrading From Lustre 1.4 to 1.8

[Brian J. Murrell]

On Thu, 2010-06-10 at 16:21 -0400, Adam wrote: 
> 
> That's what seems so great about the idea of a rolling-upgrade, if you 
> have enough spare hardware to do it, then a 1.4 and 1.8 environment can 
> be made available for testing at the same time. If the 1.8 set fails 
> then no worries, flip back to the 1.4 set, then try again by downgrading 
> the 1.8 set to 1.6.

Well, if you think you have enough hardware and want to do some testing,
and think that you can fairly represent your production environment, by
all means go ahead and enough testing that you are satisfied with
putting your production data through such an upgrade process.

I stand by my warnings however.

> Is there risk in terms of something destructive that 1.8 might try to do 
> to a component of the LFS?

There is always risk when doing something untested.

b.

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