[Lustre-discuss] mixing server versions

[Andreas Dilger]

On 2010-09-15, at 13:32, Brock Palen wrote:
> Thanks that is great to know.  Is there much risk to try with 1.8 and then back off to 1.6 if there are issues?  Risk of data loss?

We do not test/support formatting at a higher Lustre version, and then downgrading below the original version used for formatting.  With 1.6->1.4 this definitely did not work, though I'm not sure if there are specific incompatibilities between 1.8->1.6.

Cheers, Andreas
--
Andreas Dilger
Lustre Technical Lead
Oracle Corporation Canada Inc.